diff --git a/app/Interfaces/Customer/ServiceInterface.php b/app/Interfaces/Customer/ServiceInterface.php
index 1e04f85..d9324cc 100644
--- a/app/Interfaces/Customer/ServiceInterface.php
+++ b/app/Interfaces/Customer/ServiceInterface.php
@@ -6,7 +6,5 @@ use App\Entities\Customer\ServiceEntity;
 
 interface ServiceInterface extends CustomerInterface
 {
-  public function setService(ServiceEntity $serviceEntity, array $formDatas): ServiceEntity;
-  public function changeService(ServiceEntity $oldServiceEntity, ServiceEntity $serviceEntity, array $formDatas): ServiceEntity;
-  public function unsetService(ServiceEntity $serviceEntity, array $formDatas): ServiceEntity;
+  public function setService(string $action, ServiceEntity $serviceEntity, array $formDatas): ServiceEntity;
 }
diff --git a/app/Interfaces/Equipment/ServerInterface.php b/app/Interfaces/Equipment/ServerInterface.php
index 7313728..3d3037e 100644
--- a/app/Interfaces/Equipment/ServerInterface.php
+++ b/app/Interfaces/Equipment/ServerInterface.php
@@ -6,7 +6,5 @@ use App\Entities\Equipment\ServerEntity;
 
 interface ServerInterface extends EquipmentInterface
 {
-  public function setServer(ServerEntity $serverEntity, array $formDatas): ServerEntity;
-  public function changeServer(ServerEntity $oldServerEntity, ServerEntity $serverEntity, array $formDatas): ServerEntity;
-  public function unsetServer(ServerEntity $serverEntity, array $formDatas): ServerEntity;
+  public function setServer(string $action, ServerEntity $serverEntity, array $formDatas): ServerEntity;
 }
diff --git a/app/Interfaces/Equipment/ServerPartInterface.php b/app/Interfaces/Equipment/ServerPartInterface.php
index 1070853..5a43c6c 100644
--- a/app/Interfaces/Equipment/ServerPartInterface.php
+++ b/app/Interfaces/Equipment/ServerPartInterface.php
@@ -6,7 +6,5 @@ use App\Entities\Equipment\ServerPartEntity;
 
 interface ServerPartInterface extends EquipmentInterface
 {
-  public function setServerPart(ServerPartEntity $serverPartEntity, array $formDatas): ServerPartEntity;
-  public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $formDatas): ServerPartEntity;
-  public function unsetServerPart(ServerPartEntity $serverPartEntity, array $formDatas): ServerPartEntity;
+  public function setServerPart(string $action, ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): mixed;
 }
diff --git a/app/Services/Customer/ServiceService.php b/app/Services/Customer/ServiceService.php
index 77d598e..7886278 100644
--- a/app/Services/Customer/ServiceService.php
+++ b/app/Services/Customer/ServiceService.php
@@ -4,7 +4,6 @@ namespace App\Services\Customer;
 
 use App\Entities\Customer\ServiceEntity;
 use App\Entities\Equipment\ServerEntity;
-use App\Entities\Equipment\ServerPartEntity;
 use App\Entities\PaymentEntity;
 use App\Helpers\Customer\ServiceHelper;
 use App\Models\Customer\ServiceModel;
@@ -209,105 +208,76 @@ class ServiceService extends CustomerService
     //생성
     public function create(array $formDatas): ServiceEntity
     {
+        //신규등록(월청구액 전달값 그대로 사용하므로 getCaculatedAmount 필요없음)
+        $entity = parent::create($formDatas);
         if (!array_key_exists('serverinfo_uid', $formDatas)) {
             throw new \Exception(__METHOD__ . "에서 오류발생: 서버가 지정되지 않았습니다.");
         }
-        //신규등록(월청구액 전달값 그대로 사용하므로 getCaculatedAmount 필요없음)
-        $entity = parent::create($formDatas);
         //서버등록
-        $serverEntity = $this->getServerService()->getEntity($formDatas['serverinfo_uid']);
-        if (!$serverEntity instanceof ServerEntity || $serverEntity->getStatus() != STATUS['AVAILABLE']) {
-            throw new \Exception("{$formDatas['serverinfo_uid']}에 대한 서버정보를 찾을수 없거나, 사용가능 서버가 아닙니다.");
-        }
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = $entity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $entity->getPK();
-        $formDatas['status'] = STATUS['OCCUPIED'];
-        //필수정보처리 후 서버정보등록 후 서비스정보 Entity에 서버정보 설정
-        $entity = $entity->setServerEntity($this->getServerService()->modify($serverEntity, $formDatas));
+        $entity = $entity->setServerEntity($this->getServerService()->setService('create', $entity, $formDatas));
         //전체 서비스금액 설정
-        $formDatas = [];
-        $formDatas['clientinfo_uid'] = $entity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $entity->getPK();
-        $formDatas['serverinfo_uid'] = $entity->getServerInfoUID();
-        $formDatas['title'] = $entity->getServerEntity()->getTitle();
-        $formDatas['amount'] = $entity->getAmount();
-        $formDatas['billing'] = PAYMENT['BILLING']['MONTH'];
-        $formDatas['billing_at'] = $entity->getBillingAt();
-        //필수정보처리 후 결제정보등록 후 서비스정보 Entity에 결제정보 설정
-        return $entity->setPaymentEntity($this->getPaymentService()->create($formDatas));
+        $entity = $entity->setPaymentEntity($this->getPaymentService()->setService('create', $entity, $formDatas));
+        return $entity;
     }
     //수정
     public function modify(mixed $entity, array $formDatas): ServiceEntity
     {
         //수정전 정보
         $oldEntity = $entity;
-        //서비스정보 수정
+        //서비스 금액 재계산 후 서비스정보 수정
+        $formDatas['amount'] = $this->getCaculatedAmount($entity);
         $entity = parent::modify($entity, $formDatas);
         //기존 서버정보와 다르다면 서버변경
         if ($oldEntity->getServerEntity()->getPK() != $formDatas['serverinfo_uid']) {
-            $serverEntity = $oldEntity->getServerEntity();
-            $formDatas = [];
-            $formDatas['clientinfo_uid']  = null;
-            $formDatas['serviceinfo_uid'] = null;
-            $formDatas['format_at'] = date("Y-m-d");
-            $formDatas['status'] = STATUS['AVAILABLE'];
-            $entity = $entity->setServerEntity($this->getServerService()->modify($serverEntity, $formDatas));
+            //기존서버처리
+            $entity = $entity->setServerEntity($this->getServerService()->setService('delete', $oldEntity, ['serverinfo_uid' => $oldEntity->getServerInfoUID()]));
+            //수정할신규서버처리
+            $entity = $entity->setServerEntity($this->getServerService()->setService('create', $entity, $formDatas));
         }
         //전체 서비스금액 설정
-        $formDatas = [];
-        $formDatas['clientinfo_uid'] = $entity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $entity->getPK();
-        $formDatas['serverinfo_uid'] = $entity->getServerInfoUID();
-        $formDatas['title'] = $entity->getServerEntity()->getTitle();
-        $formDatas['amount'] = $entity->getAmount();
-        $formDatas['billing'] = PAYMENT['BILLING']['MONTH'];
-        $formDatas['billing_at'] = $entity->getBillingAt();
-        //필수정보처리 후 결제정보등록 후 서비스정보 Entity에 결제정보 설정
-        return $entity->setPaymentEntity($this->getPaymentService()->create($formDatas));
+        $entity = $entity->setPaymentEntity($this->getPaymentService()->setService('modify', $entity));
+        return $entity;
     }
     //삭제
     public function delete(mixed $entity): ServiceEntity
     {
         //서버해지
-        $this->getServerService()->unsetService($entity, ['serverinfo_uid' => $entity->getServerEntity()->getPK()]);
+        $entity = $entity->setServerEntity($this->getServerService()->setService('delete', $entity));
         return parent::delete($entity);
     }
 
     //대체서버추가(가격변동은 없음)
     public function addServer(ServiceEntity $entity, array $formDatas): ServiceEntity
     {
-        //대체서버용인지 확인
-        $this->getServerService()->setService($entity, $formDatas);
+        //대체서버추가 및 결제처리는 하지않음
+        $formDatas['type'] = 'alternative';
+        $this->getServerService()->setService('create', $entity, $formDatas);
         return $entity;
     }
     //대체서버를 메인서버로 설정
     public function changeServere(ServiceEntity $entity, array $formDatas): ServiceEntity
     {
-        // //기존메인서버 정보
-        // $oldServerEntity = $entity->getServerEntity();
-        // //메인서버로 선정된 대체서버정보
-        $serverEntity = $this->getServerService()->getEntity($formDatas['serverinfo_uid']);
+        $serverEntity = $entity->getServerEntity();
         if (!$serverEntity instanceof ServerEntity) {
-            throw new \Exception("{$formDatas['serverinfo_uid']}에 대한 서버정보를 찾을수 없습니다.");
+            throw new \Exception(__METHOD__ . "에서 오류발생: 기존 메인 서버정보를 찾을수 없습니다.");
         }
-        // //메인서버로 선정된 서버의 형식을 기존메인서버의 형식으로 바꿈
-        // $serverEntity = $this->getServerService()->modify($serverEntity, ['type' => $oldServerEntity->getType()]);
-        //수정전 서비스정보
-        $oldEntity = $entity;
-        //메인서버 변경(메인서버를 선정된 대체서버로 바꾼다.)
-        $entity = parent::modify($entity, ['serverinfo_uid' => $serverEntity->getPK()]);
+        //기존메인서버 정보회수처리용
+        $entity = $entity->setServerEntity($this->getServerService()->setService('delete', $entity));
+        //메인서버로 선정된 대체서버정보
+        $formDatas['type'] = $serverEntity->getType();
+        $this->getServerService()->setService('create', $entity, $formDatas);
+        //서비스 금액 재계산 후 서비스정보 수정
+        $formDatas['amount'] = $this->getCaculatedAmount($entity);
+        $entity = parent::modify($entity, $formDatas);
         //전체 서비스금액 설정
-        $entity = $this->setAmount($entity);
-        //결제정보수정
-        $entity = $this->getPaymentService()->changeService($oldEntity, $entity, $formDatas);
-        //결제정보 PK설정
-        return parent::modify($entity, ['payment_uid' => $entity->getPaymentEntity()->getPK()]);
+        $entity = $entity->setPaymentEntity($this->getPaymentService()->setService('modify', $entity));
+        return $entity;
     }
     //대체서버해지(대체서버는 해지는 가격변동은 없음)
     public function terminateServer(ServiceEntity $entity, array $formDatas): ServiceEntity
     {
-        $this->getServerService()->unsetService($entity, $formDatas);
+        //대체서버해지 및 결제처리는 하지않음
+        $entity = $entity->setServerEntity($this->getServerService()->setService('delete', $entity, $formDatas));
         return $entity;
     }
 }
diff --git a/app/Services/Equipment/ServerPartService.php b/app/Services/Equipment/ServerPartService.php
index bd71f91..6cdf79f 100644
--- a/app/Services/Equipment/ServerPartService.php
+++ b/app/Services/Equipment/ServerPartService.php
@@ -6,7 +6,6 @@ use App\Entities\Equipment\ServerEntity;
 use App\Entities\Equipment\ServerPartEntity;
 use App\Entities\PaymentEntity;
 use App\Helpers\Equipment\ServerPartHelper;
-use App\Interfaces\Equipment\ServerInterface;
 use App\Models\Equipment\ServerPartModel;
 use App\Services\Customer\ServiceService;
 use App\Services\Equipment\EquipmentService;
@@ -21,7 +20,7 @@ use App\Services\Part\SOFTWAREService;
 use App\Services\Part\SWITCHService;
 use App\Services\PaymentService;
 
-class ServerPartService extends EquipmentService implements ServerInterface
+class ServerPartService extends EquipmentService
 {
     private ?ServiceService $_serviceService = null;
     private ?ServerService $_serverService = null;
@@ -201,7 +200,38 @@ class ServerPartService extends EquipmentService implements ServerInterface
         }
         return $service;
     }
-
+    //서버정보 설정
+    final public function setServer(string $action, ServerEntity $serverEntity, array $serverFormDatas = []): void
+    {
+        switch ($action) {
+            case 'delete':
+                //기존 ServerPart정보 삭제(서버파트정보 (월비용,일회성) 상품 회수처리)
+                foreach ($this->getEntities(['serverinfo_uid' => $serverEntity->getPK()]) as $entity) {
+                    switch ($entity->getType()) {
+                        case 'CPU':
+                        case 'RAM':
+                            //기본이 아닌 결제방식의 경우 모두 회수처리
+                            if ($entity->getBilling() !== PAYMENT['BILLING']['BASE']) {
+                                //Type에 따른 부품서비스 정의
+                                $this->getPartService($entity->getType())->setServerPart('delete', $entity, $entity, []);
+                                //서버연결정보 식제
+                                parent::delete($entity);
+                            }
+                            break;
+                        default: //DISK,IP,SWITCH,CS,SOFTWARE,OS등은 모두 회수처리
+                            //Type에 따른 부품서비스 정의
+                            $this->getPartService($entity->getType())->setServerPart('delete', $entity, $entity, []);
+                            //서버연결정보 식제
+                            parent::delete($entity);
+                            break;
+                    }
+                }
+                break;
+            default:
+                throw new \Exception(__METHOD__ . "에서 오류발생:{$action}은 정의되지 않은 작업입니다.");
+                // break;
+        }
+    }
     //partEntity 정보 추가
     protected function getEntity_process(mixed $entity): ServerPartEntity
     {
@@ -266,28 +296,17 @@ class ServerPartService extends EquipmentService implements ServerInterface
         $entity = parent::create($formDatas);
         //후처리작업
         //Type에 따른 부품서비스 정의
-        $this->getPartService($entity->getType())->setServerPart($entity, $formDatas);
+        $this->getPartService($entity->getType())->setServerPart('create', $entity, $entity, $formDatas);
         //서비스 및 결제정보 처리
         switch ($entity->getBilling()) {
             case PAYMENT['BILLING']['MONTH']: //월별과금일때만 처리
                 if ($entity->getServiceInfoUID() === null) {
                     throw new \Exception(__METHOD__ . "에서 오류발생: 서비스정보가 정의된 후에만 가능합니다.");
                 }
-                $serviceEntity = $this->getServiceService()->getEntity($entity->getServiceInfoUID());
-                $entity        = $this->getServiceService()->setAmount($serviceEntity);
+                $entity = $this->getServiceService()->setAmount($this->getServiceService()->getEntity($entity->getServiceInfoUID()));
                 break;
             case PAYMENT['BILLING']['ONETIME']: //일회성일때만 처리
-                $formDatas                    = [];
-                $formDatas['clientinfo_uid']     = $entity->getClientInfoUID();
-                $formDatas['serviceinfo_uid']    = $entity->getServiceInfoUID();
-                $formDatas['serverinfo_uid']     = $entity->getServerInfoUID(); //서버연결정보 수정시에 필요함
-                //타이틀은 기타의 경우 직접작성한 제목을 등록하고 아닌경우는 Part의 Title을 사용한다.
-                $formDatas['title']              = $entity->getPartEntity()->getTitle();
-                $formDatas['amount']             = $entity->getTotalAmount(); //단가*cnt
-                $formDatas['billing']            = $entity->getBilling();
-                //당일결체일로 설정
-                $formDatas['billing_at'] = date("Y-m-d");
-                $entity->setPaymentEntity($this->getPaymentService()->create($formDatas));
+                $entity->setPaymentEntity($this->getPaymentService()->setServerPart('create', $entity, $formDatas));
                 //결제정보PK정의
                 $entity = parent::modify($entity, ['payment_uid' => $entity->getPaymentEntity()->getPK()]);
                 break;
@@ -320,19 +339,17 @@ class ServerPartService extends EquipmentService implements ServerInterface
         $entity = parent::modify($entity, $formDatas);
         //후처리작업
         //Type에 따른 부품서비스 정의
-        $this->getPartService($entity->getType())->changeServerPart($oldEntity, $entity, $formDatas);
+        $this->getPartService($entity->getType())->setServerPart('modify', $oldEntity, $entity, $formDatas);
         //서비스 및 결제정보 처리
         switch ($entity->getBilling()) {
             case PAYMENT['BILLING']['MONTH']: //월별과금일때만 처리
-                if ($entity->getServiceInfoUID() !== null) {
-                    $serviceEntity = $this->getServiceService()->getEntity($entity->getServiceInfoUID());
-                    $entity        = $this->getServiceService()->setAmount($serviceEntity);
+                if ($entity->getServiceInfoUID() !== null) { //서비스가 정의되어 있으면
+                    $entity = $this->getServiceService()->setAmount($this->getServiceService()->getEntity($entity->getServiceInfoUID()));
                 }
                 break;
             case PAYMENT['BILLING']['ONETIME']: //일회성일때만 처리
-                if ($entity->getPaymentUID() !== null) {
-                    $paymentEntity = $this->getPaymentService()->getEntity($entity->getPaymentUID());
-                    $entity->setPaymentEntity($this->getPaymentService()->setAmount($paymentEntity, $entity->getAmount() * $entity->getCnt()));
+                if ($entity->getPaymentUID() !== null) { //결제정보가 정의되어 있으면
+                    $entity->setPaymentEntity($this->getPaymentService()->setServerPart('modify', $entity, $formDatas));
                 }
                 break;
             case PAYMENT['BILLING']['BASE']: //기본처리
@@ -347,9 +364,11 @@ class ServerPartService extends EquipmentService implements ServerInterface
     //삭제
     public function delete(mixed $entity): ServerPartEntity
     {
+        //수정전 정보
+        $oldEntity = $entity;
         $entity = parent::delete($entity);
         //Type에 따른 부품서비스 정의
-        $this->getPartService($entity->getType())->unSetServerPart($entity, []);
+        $this->getPartService($entity->getType())->setServerPart('delete', $oldEntity, $entity, []);
         //삭제시는 월비용 서비스만 처리
         if ($entity->getBilling() === PAYMENT['BILLING']['MONTH']) {
             //서비스가 정의되어 있으면 실행
@@ -360,41 +379,4 @@ class ServerPartService extends EquipmentService implements ServerInterface
         }
         return $entity;
     }
-
-    //서버관련 작업
-    public function setServer(ServerEntity $serverEntity, array $serverDatas): ServerEntity
-    {
-        //아무것도 하지 않음
-        return $serverEntity;
-    }
-    public function changeServer(ServerEntity $oldServerEntity, ServerEntity $serverEntity, array $serverDatas): ServerEntity
-    {
-        //아무것도 하지 않음
-        return $serverEntity;
-    }
-    public function unsetServer(ServerEntity $serverEntity, array $serverDatas): ServerEntity
-    {
-
-        //기존 ServerPart정보 삭제(서버파트정보 (월비용,일회성) 상품 회수처리)
-        foreach ($this->getEntities(['serverinfo_uid' => $serverEntity->getPK()]) as $serverPartEntity) {
-            switch ($serverPartEntity->getType()) {
-                case 'CPU':
-                case 'RAM':
-                    //기본이 아닌 결제방식의 경우 모두 회수처리
-                    if ($serverPartEntity->getBilling() !== PAYMENT['BILLING']['BASE']) {
-                        //Type에 따른 부품서비스 정의
-                        $this->getPartService($serverPartEntity->getType())->unSetServerPart($serverPartEntity, []);
-                        //서버연결정보 식제
-                        parent::delete($serverPartEntity);
-                    }
-                    break;
-                default: //DISK,IP,SWITCH,CS,SOFTWARE,OS등은 모두 회수처리
-                    $this->getPartService($serverPartEntity->getType())->unSetServerPart($serverPartEntity, []);
-                    //서버연결정보 식제
-                    parent::delete($serverPartEntity);
-                    break;
-            }
-        }
-        return $serverEntity;
-    }
 }
diff --git a/app/Services/Equipment/ServerService.php b/app/Services/Equipment/ServerService.php
index 294736f..f5ca190 100644
--- a/app/Services/Equipment/ServerService.php
+++ b/app/Services/Equipment/ServerService.php
@@ -5,13 +5,12 @@ namespace App\Services\Equipment;
 use App\Entities\Customer\ServiceEntity;
 use App\Entities\Equipment\ServerEntity;
 use App\Helpers\Equipment\ServerHelper;
-use App\Interfaces\Customer\ServiceInterface;
 use App\Models\Equipment\ServerModel;
 use App\Services\Customer\ServiceService;
 use App\Services\Equipment\EquipmentService;
 use App\Services\Equipment\ServerPartService;
 
-class ServerService extends EquipmentService  implements ServiceInterface
+class ServerService extends EquipmentService
 {
     private ?ServiceService $_serviceService = null;
     private ?ServerPartService $_serverPartService = null;
@@ -122,6 +121,49 @@ class ServerService extends EquipmentService  implements ServiceInterface
         // dd($totalCounts);
         return $totalCounts;
     }
+    //서비스정보 설정
+    final public function setService(string $action, ServiceEntity $serviceEntity, array $serviceFormDatas = []): ServerEntity
+    {
+        switch ($action) {
+            case 'create':
+                if (!array_key_exists('serverinfo_uid', $serviceFormDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: 서버가 지정되지 않았습니다.");
+                }
+                $entity = $this->getEntity($serviceFormDatas['serverinfo_uid']);
+                if (!$entity instanceof ServerEntity || $entity->getStatus() != STATUS['AVAILABLE']) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생:{$serviceFormDatas['serverinfo_uid']}에 대한 서버정보를 찾을수 없거나, 사용가능 서버가 아닙니다.");
+                }
+                $formDatas = [];
+                //대체서버 추가용인지 확인
+                if (array_key_exists('type', $serviceFormDatas)) {
+                    $formDatas['type'] = $serviceFormDatas['type'];
+                }
+                $formDatas['clientinfo_uid']  = $serviceEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid'] = $serviceEntity->getPK();
+                $formDatas['status'] = STATUS['OCCUPIED'];
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            case 'delete':
+                if (!array_key_exists('serverinfo_uid', $serviceFormDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: 서버가 지정되지 않았습니다.");
+                }
+                $entity = $this->getEntity($serviceFormDatas['serverinfo_uid']);
+                if (!$entity instanceof ServerEntity) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생:해지 할 서버정보를 찾을수 없습니다.");
+                }
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = null;
+                $formDatas['serviceinfo_uid'] = null;
+                $formDatas['format_at'] = date("Y-m-d");
+                $formDatas['status'] = STATUS['AVAILABLE'];
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            default:
+                throw new \Exception(__METHOD__ . "에서 오류발생:{$action}은 정의되지 않은 작업입니다.");
+                // break;
+        }
+        return $entity;
+    }
     //기본 기능부분
     //FieldForm관련용
     public function getFormOption(string $field, $options = []): array
@@ -136,24 +178,6 @@ class ServerService extends EquipmentService  implements ServiceInterface
         }
         return $options;
     }
-    public function setFormData(string $field, array $requestDatas, array $formDatas): array
-    {
-        switch ($field) {
-            case 'CPU':
-            case 'RAM':
-                $formDatas[$field] = $requestDatas[$field] ?? null;
-                $formDatas["{$field}_cnt"] = $requestDatas["{$field}_cnt"] ?? null;
-                break;
-            case 'DISK':
-                $formDatas[$field] = $requestDatas[$field] ?? null;
-                $formDatas["{$field}_cnt"] = $requestDatas["{$field}_cnt"] ?? null;
-                $formDatas["{$field}_extra"] = $requestDatas["{$field}_extra"] ?? null;
-                break;
-            default:
-                $formDatas = parent::setFormData($field, $requestDatas, $formDatas);
-        }
-        return $formDatas;
-    }
     public function create(array $formDatas): ServerEntity
     {
         $entity = parent::create($formDatas);
@@ -179,7 +203,13 @@ class ServerService extends EquipmentService  implements ServiceInterface
             throw new \Exception("서비스중이 서버는 삭제하실수 없습니다.");
         }
         //선처리작업
-        $entity = $this->getServerPartService()->unsetServer($entity, []);;
+        //서비스가 연결되어 있고 대체서버가 아니면, 서비스정보수정(청구액수정)
+        if ($entity->getServiceInfoUID() !== null && $entity->getType() !== "alternative") {
+            $serviceEntity = $this->getServiceService()->getEntity($entity->getServiceInfoUID());
+            $this->getServiceService()->setAmount($serviceEntity);
+        }
+        //서버파트정보해지
+        $this->getServerPartService()->setServer('dedete', $entity);
         return parent::delete($entity);
     }
     //List 검색용
@@ -189,39 +219,4 @@ class ServerService extends EquipmentService  implements ServiceInterface
         $this->getModel()->orderBy("code ASC,title ASC");
         parent::setOrderBy($field, $value);
     }
-
-    public function changeService(ServiceEntity $oldServiceEntity, ServiceEntity $serviceEntity, array $serviceDatas): ServiceEntity
-    {
-        if (!array_key_exists('serverinfo_uid', $serviceDatas)) {
-            throw new \Exception("신규로 지정할 서버정보가 없습니다.");
-        }
-        //기존 서버 해지(uynsetService사용)
-        $this->unsetService($serviceEntity, ['serverinfo_uid' => $serviceEntity->getServerEntity()->getPK()]);
-        //신규서버 설정(setService사용)
-        return $this->setService($serviceEntity, $serviceDatas);
-    }
-    public function unsetService(ServiceEntity $serviceEntity, array $serviceDatas): ServiceEntity
-    {
-        if (!array_key_exists('serverinfo_uid', $serviceDatas)) {
-            throw new \Exception("서비스를 해지할 서버정보가 없습니다.");
-        }
-        if ($serviceEntity->getServerEntity()->getPK() === $serviceDatas['serverinfo_uid']) {
-            throw new \Exception("Main으로 설정된 서버는 해지하실 수 없습니다.");
-        }
-        $entity = $this->getEntity($serviceDatas['serverinfo_uid']);
-        if (!$entity instanceof ServerEntity) {
-            throw new \Exception("{$serviceDatas['serverinfo_uid']}에 대한 서버정보를 찾을수 없습니다.");
-        }
-        //서버정보설정
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = null;
-        $formDatas['serviceinfo_uid'] = null;
-        $formDatas['format_at'] = date("Y-m-d");
-        $formDatas['status'] = STATUS['AVAILABLE'];
-        $entity = parent::modify($entity, $formDatas);
-        //서버파트정보 회수처리 호출
-        $this->getServerPartService()->unsetServer($entity, []);
-        return $serviceEntity;
-    }
-    //서버파트관련 작업
 }
diff --git a/app/Services/Part/CPUService.php b/app/Services/Part/CPUService.php
index b5fd0b8..f3c1904 100644
--- a/app/Services/Part/CPUService.php
+++ b/app/Services/Part/CPUService.php
@@ -52,41 +52,4 @@ class CPUService extends PartService implements ServerPartInterface
         $this->getModel()->orderBy('title ASC');
         parent::setOrderBy($field, $value);
     }
-
-    //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof CPUEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        //부품정보에 서버정보 설정 및 서비스,고객정보 정의
-        if ($entity->getStock() < $serverPartEntity->getCnt()) {
-            throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof CPUEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() + $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
 }
diff --git a/app/Services/Part/CSService.php b/app/Services/Part/CSService.php
index eefdd5d..5576da0 100644
--- a/app/Services/Part/CSService.php
+++ b/app/Services/Part/CSService.php
@@ -106,50 +106,53 @@ class CSService extends PartService implements ServerPartInterface
     }
 
     //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
+    public function setServerPart(string $action, ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): CSEntity
     {
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = $serverPartEntity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $serverPartEntity->getServiceInfoUID();
-        $formDatas['serverinfo_uid']  = $serverPartEntity->getServerInfoUID();
-        $formDatas['status'] = STATUS['OCCUPIED'];
-        if (!array_key_exists('status', $formDatas)) {
-            throw new \Exception(__METHOD__ . "에서 오류발생: CS상태가 설정되지 않았습니다.");
+        switch ($action) {
+            case 'create':
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = $serverPartEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid'] = $serverPartEntity->getServiceInfoUID();
+                $formDatas['serverinfo_uid']  = $serverPartEntity->getServerInfoUID();
+                $formDatas['status'] = STATUS['OCCUPIED'];
+                if (!array_key_exists('status', $formDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: CS상태가 설정되지 않았습니다.");
+                }
+                //CS정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity instanceof CSEntity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 CS정보를 찾을수없습니다.");
+                }
+                //CS정보 수정
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            case 'modify':
+                //수정 전 부품연결정보관련 정보처리  파트정보가 달라졌을경우 (회수 -> 사용 처리)
+                //기존것 회수 처리
+                if ($oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
+                    $this->setServerPart('delete', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                }
+                //신규것 사용처리
+                $entity = $this->setServerPart('create', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                break;
+            case 'delete':
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = null;
+                $formDatas['serviceinfo_uid'] = null;
+                $formDatas['serverinfo_uid']  = null;
+                $formDatas['status'] = STATUS['AVAILABLE'];
+                if (!array_key_exists('status', $formDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: CS상태가 설정되지 않았습니다.");
+                }
+                //CS정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity instanceof CSEntity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 CS정보를 찾을수없습니다.");
+                }
+                //CS정보 수정
+                $entity = parent::modify($entity, $formDatas);
+                break;
         }
-        //CS정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof CSEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 CS정보를 찾을수없습니다.");
-        }
-        //CS정보 수정
-        return $serverPartEntity->setPartEntity(parent::modify($entity, $formDatas));
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  파트정보가 달라졌을경우 (회수 -> 사용 처리)
-        if ($oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = null;
-        $formDatas['serviceinfo_uid'] = null;
-        $formDatas['serverinfo_uid']  = null;
-        $formDatas['status'] = STATUS['AVAILABLE'];
-        if (!array_key_exists('status', $formDatas)) {
-            throw new \Exception(__METHOD__ . "에서 오류발생: CS상태가 설정되지 않았습니다.");
-        }
-        //CS정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof CSEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 CS정보를 찾을수없습니다.");
-        }
-        //CS정보 수정
-        return $serverPartEntity->setPartEntity(parent::modify($entity, $formDatas));
+        return $entity;
     }
 }
diff --git a/app/Services/Part/DISKService.php b/app/Services/Part/DISKService.php
index 4139172..83837ae 100644
--- a/app/Services/Part/DISKService.php
+++ b/app/Services/Part/DISKService.php
@@ -56,38 +56,43 @@ class DISKService extends PartService implements ServerPartInterface
     }
 
     //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
+    public function setServerPart(string $action, ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): mixed
     {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof DISKEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
+        switch ($action) {
+            case 'create':
+                //부품정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
+                }
+                //부품정보에 서버정보 설정 및 서비스,고객정보 정의
+                if ($entity->getStock() < $serverPartEntity->getCnt()) {
+                    throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
+                }
+                $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
+                break;
+            case 'modify':
+                //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
+                //기존것 회수 처리
+                if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
+                    $this->setServerPart('delete', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                }
+                //신규것 사용처리
+                $entity = $this->setServerPart('create', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                break;
+            case 'delete':
+                //부품정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
+                }
+                //부품정보에 서버정보 설정 및 서비스,고객정보 정의
+                if ($entity->getStock() < $serverPartEntity->getCnt()) {
+                    throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
+                }
+                $entity = parent::modify($entity, ['format' => $entity->getFormat() + $serverPartEntity->getCnt()]);
+                break;
         }
-        //부품정보에 서버정보 설정 및 서비스,고객정보 정의
-        if ($entity->getStock() < $serverPartEntity->getCnt()) {
-            throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof DISKEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        $entity = parent::modify($entity, ['format' => $entity->getFormat() + $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
+        return $entity;
     }
 }
diff --git a/app/Services/Part/IPService.php b/app/Services/Part/IPService.php
index 582a6d3..db9e5ec 100644
--- a/app/Services/Part/IPService.php
+++ b/app/Services/Part/IPService.php
@@ -121,53 +121,53 @@ class IPService extends PartService implements ServerPartInterface
     }
 
     //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
+    public function setServerPart(string $action, ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): IPEntity
     {
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = $serverPartEntity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $serverPartEntity->getServiceInfoUID();
-        $formDatas['serverinfo_uid']  = $serverPartEntity->getServerInfoUID();
-        $formDatas['status'] = STATUS['OCCUPIED'];
-        if (!array_key_exists('status', $formDatas)) {
-            throw new \Exception(__METHOD__ . "에서 오류발생:  IP상태가 설정되지 않았습니다.");
+        switch ($action) {
+            case 'create':
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = $serverPartEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid'] = $serverPartEntity->getServiceInfoUID();
+                $formDatas['serverinfo_uid']  = $serverPartEntity->getServerInfoUID();
+                $formDatas['status'] = STATUS['OCCUPIED'];
+                if (!array_key_exists('status', $formDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: IP상태가 설정되지 않았습니다.");
+                }
+                //IP정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity instanceof IPEntity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 IP정보를 찾을수없습니다.");
+                }
+                //IP정보 수정
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            case 'modify':
+                //수정 전 부품연결정보관련 정보처리  파트정보가 달라졌을경우 (회수 -> 사용 처리)
+                //기존것 회수 처리
+                if ($oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
+                    $this->setServerPart('delete', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                }
+                //신규것 사용처리
+                $entity = $this->setServerPart('create', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                break;
+            case 'delete':
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = null;
+                $formDatas['serviceinfo_uid'] = null;
+                $formDatas['serverinfo_uid']  = null;
+                $formDatas['status'] = STATUS['AVAILABLE'];
+                if (!array_key_exists('status', $formDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: IP상태가 설정되지 않았습니다.");
+                }
+                //IP정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity instanceof IPEntity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 IP정보를 찾을수없습니다.");
+                }
+                //IP정보 수정
+                $entity = parent::modify($entity, $formDatas);
+                break;
         }
-        // IP정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof  IPEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는  IP정보를 찾을수없습니다.");
-        }
-        // IP정보 수정
-        return $serverPartEntity->setPartEntity(parent::modify($entity, $formDatas));
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  파트정보가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = null;
-        $formDatas['serviceinfo_uid'] = null;
-        $formDatas['serverinfo_uid']  = null;
-        //기존 고객정보 기록용
-        $formDatas['old_clientinfo_uid'] = $serverPartEntity->getClientInfoUID();
-        $formDatas['status'] = STATUS['AVAILABLE'];
-        if (!array_key_exists('status', $formDatas)) {
-            throw new \Exception(__METHOD__ . "에서 오류발생:  IP상태가 설정되지 않았습니다.");
-        }
-        // IP정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof  IPEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는  IP정보를 찾을수없습니다.");
-        }
-        // IP정보 수정
-        return $serverPartEntity->setPartEntity(parent::modify($entity, $formDatas));
+        return $entity;
     }
 }
diff --git a/app/Services/Part/OSService.php b/app/Services/Part/OSService.php
index 3ff875f..c211695 100644
--- a/app/Services/Part/OSService.php
+++ b/app/Services/Part/OSService.php
@@ -52,41 +52,4 @@ class OSService extends PartService implements ServerPartInterface
         $this->getModel()->orderBy('title ASC');
         parent::setOrderBy($field, $value);
     }
-
-    //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof OSEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        //부품정보에 서버정보 설정 및 서비스,고객정보 정의
-        if ($entity->getStock() < $serverPartEntity->getCnt()) {
-            throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof OSEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() + $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
 }
diff --git a/app/Services/Part/PartService.php b/app/Services/Part/PartService.php
index afd0d6f..a5f6cbf 100644
--- a/app/Services/Part/PartService.php
+++ b/app/Services/Part/PartService.php
@@ -2,6 +2,7 @@
 
 namespace App\Services\Part;
 
+use App\Entities\Equipment\ServerPartEntity;
 use App\Helpers\CommonHelper;
 use App\Models\CommonModel;
 use App\Services\CommonService;
@@ -13,4 +14,45 @@ abstract class PartService extends CommonService
         parent::__construct($model, $helper);
         $this->addClassName('Part');
     }
+
+    //서버파트관련 작업
+    public function setServerPart(string $action, ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): mixed
+    {
+        switch ($action) {
+            case 'create':
+                //부품정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
+                }
+                //부품정보에 서버정보 설정 및 서비스,고객정보 정의
+                if ($entity->getStock() < $serverPartEntity->getCnt()) {
+                    throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
+                }
+                $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
+                break;
+            case 'modify':
+                //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
+                //기존것 회수 처리
+                if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
+                    $this->setServerPart('delete', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                }
+                //신규것 사용처리
+                $entity = $this->setServerPart('create', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                break;
+            case 'delete':
+                //부품정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
+                }
+                //부품정보에 서버정보 설정 및 서비스,고객정보 정의
+                if ($entity->getStock() < $serverPartEntity->getCnt()) {
+                    throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
+                }
+                $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
+                break;
+        }
+        return $entity;
+    }
 }
diff --git a/app/Services/Part/RAMService.php b/app/Services/Part/RAMService.php
index ac9a8d7..3a9959c 100644
--- a/app/Services/Part/RAMService.php
+++ b/app/Services/Part/RAMService.php
@@ -52,41 +52,4 @@ class RAMService extends PartService  implements ServerPartInterface
         $this->getModel()->orderBy('title ASC');
         parent::setOrderBy($field, $value);
     }
-
-    //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof RAMEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        //부품정보에 서버정보 설정 및 서비스,고객정보 정의
-        if ($entity->getStock() < $serverPartEntity->getCnt()) {
-            throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
-        }
-        parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof RAMEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        parent::modify($entity, ['stock' => $entity->getStock() + $serverPartEntity->getCnt()]);
-        return $serverPartEntity;
-    }
 }
diff --git a/app/Services/Part/SOFTWAREService.php b/app/Services/Part/SOFTWAREService.php
index 18cd092..494c75b 100644
--- a/app/Services/Part/SOFTWAREService.php
+++ b/app/Services/Part/SOFTWAREService.php
@@ -52,41 +52,4 @@ class SOFTWAREService extends PartService implements ServerPartInterface
         $this->getModel()->orderBy('title ASC');
         parent::setOrderBy($field, $value);
     }
-
-    //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof SOFTWAREEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        //부품정보에 서버정보 설정 및 서비스,고객정보 정의
-        if ($entity->getStock() < $serverPartEntity->getCnt()) {
-            throw new \Exception("현재 재고수[{$entity->getStock()}]보다 지정하신 갯수({$serverPartEntity->getCnt()})가 더 많습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() - $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  갯수,파트가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getCnt() != $serverPartEntity->getCnt() ||  $oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        //부품정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof SOFTWAREEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 부품정보를 찾을수없습니다.");
-        }
-        $entity = parent::modify($entity, ['stock' => $entity->getStock() + $serverPartEntity->getCnt()]);
-        return $serverPartEntity->setPartEntity($entity);
-    }
 }
diff --git a/app/Services/Part/SWITCHService.php b/app/Services/Part/SWITCHService.php
index 74f0fbc..2637a3c 100644
--- a/app/Services/Part/SWITCHService.php
+++ b/app/Services/Part/SWITCHService.php
@@ -91,51 +91,53 @@ class SWITCHService extends PartService implements ServerPartInterface
     }
 
     //서버파트관련 작업
-    public function setServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
+    public function setServerPart(string $action, ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): SWITCHEntity
     {
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = $serverPartEntity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $serverPartEntity->getServiceInfoUID();
-        $formDatas['serverinfo_uid']  = $serverPartEntity->getServerInfoUID();
-        $formDatas['status'] = STATUS['OCCUPIED'];
-        if (!array_key_exists('status', $formDatas)) {
-            throw new \Exception(__METHOD__ . "에서 오류발생: SWITCH상태가 설정되지 않았습니다.");
+        switch ($action) {
+            case 'create':
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = $serverPartEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid'] = $serverPartEntity->getServiceInfoUID();
+                $formDatas['serverinfo_uid']  = $serverPartEntity->getServerInfoUID();
+                $formDatas['status'] = STATUS['OCCUPIED'];
+                if (!array_key_exists('status', $formDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: SWITCH상태가 설정되지 않았습니다.");
+                }
+                //SWITCH정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity instanceof SWITCHEntity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 SWITCH정보를 찾을수없습니다.");
+                }
+                //SWITCH정보 수정
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            case 'modify':
+                //수정 전 부품연결정보관련 정보처리  파트정보가 달라졌을경우 (회수 -> 사용 처리)
+                //기존것 회수 처리
+                if ($oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
+                    $this->setServerPart('delete', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                }
+                //신규것 사용처리
+                $entity = $this->setServerPart('create', $oldServerPartEntity,   $serverPartEntity, $serverPartDatas);
+                break;
+            case 'delete':
+                $formDatas = [];
+                $formDatas['clientinfo_uid']  = null;
+                $formDatas['serviceinfo_uid'] = null;
+                $formDatas['serverinfo_uid']  = null;
+                $formDatas['status'] = STATUS['AVAILABLE'];
+                if (!array_key_exists('status', $formDatas)) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생: SWITCH상태가 설정되지 않았습니다.");
+                }
+                //SWITCH정보가져오기
+                $entity = $this->getEntity($serverPartEntity->getPartUID());
+                if (!$entity instanceof SWITCHEntity) {
+                    throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 SWITCH정보를 찾을수없습니다.");
+                }
+                //SWITCH정보 수정
+                $entity = parent::modify($entity, $formDatas);
+                break;
         }
-        //SWITCH정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof SWITCHEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 SWITCH정보를 찾을수없습니다.");
-        }
-        //SWITCH정보 수정
-        return $serverPartEntity->setPartEntity(parent::modify($entity, $formDatas));
-    }
-    public function changeServerPart(ServerPartEntity $oldServerPartEntity, ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-
-        //수정 전 부품연결정보관련 정보처리  파트정보가 달라졌을경우 (회수 -> 사용 처리)
-        //기존것 회수 처리
-        if ($oldServerPartEntity->getPartUID() !== $serverPartEntity->getPartUID()) {
-            $this->unsetServerPart($oldServerPartEntity,   $serverPartDatas);
-        }
-        //신규것 사용처리
-        return $this->setServerPart($serverPartEntity, $serverPartDatas);
-    }
-    public function unsetServerPart(ServerPartEntity $serverPartEntity, array $serverPartDatas): ServerPartEntity
-    {
-        $formDatas = [];
-        $formDatas['clientinfo_uid']  = null;
-        $formDatas['serviceinfo_uid'] = null;
-        $formDatas['serverinfo_uid']  = null;
-        $formDatas['status'] = STATUS['AVAILABLE'];
-        if (!array_key_exists('status', $formDatas)) {
-            throw new \Exception(__METHOD__ . "에서 오류발생: SWITCH상태가 설정되지 않았습니다.");
-        }
-        //SWITCH정보가져오기
-        $entity = $this->getEntity($serverPartEntity->getPartUID());
-        if (!$entity instanceof SWITCHEntity) {
-            throw new \Exception("{$serverPartEntity->getPartUID()}에 해당하는 SWITCH정보를 찾을수없습니다.");
-        }
-        //SWITCH정보 수정
-        return $serverPartEntity->setPartEntity(parent::modify($entity, $formDatas));
+        return $entity;
     }
 }
diff --git a/app/Services/PaymentService.php b/app/Services/PaymentService.php
index df87140..620202d 100644
--- a/app/Services/PaymentService.php
+++ b/app/Services/PaymentService.php
@@ -6,7 +6,6 @@ use App\Entities\Customer\ServiceEntity;
 use App\Entities\Equipment\ServerPartEntity;
 use App\Entities\PaymentEntity;
 use App\Helpers\PaymentHelper;
-use App\Interfaces\Customer\ServiceInterface;
 use App\Models\PaymentModel;
 use App\Services\CommonService;
 use App\Services\Customer\ClientService;
@@ -14,7 +13,7 @@ use App\Services\Customer\ServiceService;
 use App\Services\Equipment\ServerPartService;
 use App\Services\UserService;
 
-class PaymentService extends CommonService implements ServiceInterface
+class PaymentService extends CommonService
 {
     private ?UserService $_userService = null;
     private ?ClientService $_clientService = null;
@@ -117,10 +116,78 @@ class PaymentService extends CommonService implements ServiceInterface
         }
         return $unPaids;
     }
-    //결제금액설정
-    final public function setAmount(PaymentEntity $entity, int $amount): PaymentEntity
+    //서비스정보 설정
+    final public function setService(string $action, ServiceEntity $serviceEntity, array $serviceFormDatas = []): PaymentEntity
     {
-        return parent::modify($entity, ['amount' => $amount]);
+        switch ($action) {
+            case 'create':
+                $formDatas = [];
+                $formDatas['clientinfo_uid'] = $serviceEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid'] = $serviceEntity->getPK();
+                $formDatas['serverinfo_uid'] = $serviceEntity->getServerInfoUID();
+                $formDatas['title'] = $serviceEntity->getServerEntity()->getTitle();
+                $formDatas['amount'] = $serviceEntity->getAmount();
+                $formDatas['billing'] = PAYMENT['BILLING']['MONTH'];
+                $formDatas['billing_at'] = $serviceEntity->getBillingAt();
+                $entity = parent::create($formDatas);
+                break;
+            case 'modify':
+                $entity = $serviceEntity->getPaymentEntity();
+                if (!$entity instanceof PaymentEntity) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생:결제정보를 찾을수 없습니다.");
+                }
+                $formDatas = [];
+                $formDatas['clientinfo_uid'] = $serviceEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid'] = $serviceEntity->getPK();
+                $formDatas['serverinfo_uid'] = $serviceEntity->getServerInfoUID();
+                $formDatas['title'] = $serviceEntity->getServerEntity()->getTitle();
+                $formDatas['amount'] = $serviceEntity->getAmount();
+                $formDatas['billing'] = PAYMENT['BILLING']['MONTH'];
+                $formDatas['billing_at'] = $serviceEntity->getBillingAt();
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            default:
+                throw new \Exception(__METHOD__ . "에서 오류발생:{$action}은 정의되지 않은 작업입니다.");
+                // break;
+        }
+        return $entity;
+    }
+    final public function setServerPart(string $action, ServerPartEntity $serverPartEntity, array $servicePartFormDatas = []): PaymentEntity
+    {
+        switch ($action) {
+            case 'create':
+                $formDatas                    = [];
+                $formDatas['clientinfo_uid']     = $serverPartEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid']    = $serverPartEntity->getServiceInfoUID();
+                $formDatas['serverinfo_uid']     = $serverPartEntity->getServerInfoUID(); //서버연결정보 수정시에 필요함
+                //타이틀은 기타의 경우 직접작성한 제목을 등록하고 아닌경우는 Part의 Title을 사용한다.
+                $formDatas['title']              = $serverPartEntity->getPartEntity()->getTitle();
+                $formDatas['amount']             = $serverPartEntity->getTotalAmount(); //단가*cnt
+                $formDatas['billing']            = $serverPartEntity->getBilling();
+                //당일결체일로 설정
+                $formDatas['billing_at'] = date("Y-m-d");
+                $entity = parent::create($formDatas);
+                break;
+            case 'modify':
+                $entity = $serverPartEntity->getPaymentEntity();
+                if (!$entity instanceof PaymentEntity) {
+                    throw new \Exception(__METHOD__ . "에서 오류발생:결제정보를 찾을수 없습니다.");
+                }
+                $formDatas                    = [];
+                $formDatas['clientinfo_uid']     = $serverPartEntity->getClientInfoUID();
+                $formDatas['serviceinfo_uid']    = $serverPartEntity->getServiceInfoUID();
+                $formDatas['serverinfo_uid']     = $serverPartEntity->getServerInfoUID(); //서버연결정보 수정시에 필요함
+                //타이틀은 기타의 경우 직접작성한 제목을 등록하고 아닌경우는 Part의 Title을 사용한다.
+                $formDatas['title']              = $serverPartEntity->getPartEntity()->getTitle();
+                $formDatas['amount']             = $serverPartEntity->getTotalAmount(); //단가*cnt
+                $formDatas['billing']            = $serverPartEntity->getBilling();
+                $entity = parent::modify($entity, $formDatas);
+                break;
+            default:
+                throw new \Exception(__METHOD__ . "에서 오류발생:{$action}은 정의되지 않은 작업입니다.");
+                // break;
+        }
+        return $entity;
     }
     //기본 기능부분
     //FieldForm관련용
@@ -157,31 +224,4 @@ class PaymentService extends CommonService implements ServiceInterface
         $this->getModel()->orderBy('billing_at ASC');
         parent::setOrderBy($field, $value);
     }
-    public function changeService(ServiceEntity $oldServiceEntity, ServiceEntity $serviceEntity, array $serviceDatas): ServiceEntity
-    {
-        //결제정보 가져오기
-        $entity = $serviceEntity->getPaymentEntity();
-        if (!$entity instanceof PaymentEntity) {
-            throw new \Exception(__METHOD__ . "에서 오류발생: 서비스정보[{$serviceEntity->getPK()}]에 해당하는 결제정보를 찾을수 없습니다.");
-        }
-        //미납상태확인
-        if ($entity->getStatus() !== STATUS['UNPAID']) {
-            throw new \Exception(__METHOD__ . "에서 오류발생: 완료된 결제는 수정이 불가합니다.");
-        }
-        $formDatas = [];
-        $formDatas['clientinfo_uid'] = $serviceEntity->getClientInfoUID();
-        $formDatas['serviceinfo_uid'] = $serviceEntity->getPK();
-        $formDatas['serverinfo_uid'] = $serviceEntity->getServerInfoUID();
-        $formDatas['title'] = $serviceEntity->getServerEntity()->getTitle();
-        $formDatas['amount'] = $serviceEntity->getAmount();
-        $formDatas['billing'] = PAYMENT['BILLING']['MONTH'];
-        $formDatas['billing_at'] = $serviceEntity->getBillingAt();
-        //필수정보처리 후 결제정보수정 후 서비스정보 Entity에 결제정보 설정
-        return $serviceEntity->setPaymentEntity($this->getModel()->modify($entity, $formDatas));
-    }
-    public function unsetService(ServiceEntity $serviceEntity, array $serviceDatas): ServiceEntity
-    {
-        //아무것도 하지 않는다.
-        return $serviceEntity;
-    }
 }