diff --git a/models/resources/data/data.go b/models/resources/data/data.go
index b458e64..63d2eea 100644
--- a/models/resources/data/data.go
+++ b/models/resources/data/data.go
@@ -34,7 +34,7 @@ func (dma *DataResource) Serialize() map[string]interface{} {
 }
 
 func (d *DataResource) GetAccessor() utils.Accessor {
-	data := &DataMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.DATA_RESOURCE)
 	return data
 }
diff --git a/models/resources/data/data_mongo_accessor.go b/models/resources/data/data_mongo_accessor.go
index c543b20..b93e15c 100644
--- a/models/resources/data/data_mongo_accessor.go
+++ b/models/resources/data/data_mongo_accessor.go
@@ -6,29 +6,33 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type DataMongoAccessor struct {
+type dataMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (dma *DataMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *dataMongoAccessor {
+	return &dataMongoAccessor{}
+}
+
+func (dma *dataMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return dma.GenericDeleteOne(id, dma)
 }
 
-func (dma *DataMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (dma *dataMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	set.(*DataResource).ResourceModel = nil
 	return dma.GenericUpdateOne(set, id, dma, &DataResource{})
 }
 
-func (dma *DataMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (dma *dataMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	data.(*DataResource).ResourceModel = nil
 	return dma.GenericStoreOne(data, dma)
 }
 
-func (dma *DataMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (dma *dataMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return dma.GenericStoreOne(data, dma)
 }
 
-func (dma *DataMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (dma *dataMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	var data DataResource
 	res_mongo, code, err := mongo.MONGOService.LoadOne(id, dma.GetType())
 	if err != nil {
@@ -44,7 +48,7 @@ func (dma *DataMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	return &data, 200, nil
 }
 
-func (wfa DataMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa dataMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -66,7 +70,7 @@ func (wfa DataMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	return objs, 200, nil
 }
 
-func (wfa *DataMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *dataMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractresource.abstractobject.name", "abstractresource.short_description", "abstractresource.description", "abstractresource.owner", "abstractresource.source_url"},
 		wfa.GetType())
diff --git a/models/resources/data/data_test.go b/models/resources/data/data_test.go
index 937a994..de7dd46 100644
--- a/models/resources/data/data_test.go
+++ b/models/resources/data/data_test.go
@@ -21,7 +21,7 @@ func TestStoreOneData(t *testing.T) {
 		},
 	}
 
-	dma := DataMongoAccessor{}
+	dma := New()
 	id, _, _ := dma.StoreOne(&d)
 
 	assert.NotEmpty(t, id)
@@ -39,7 +39,7 @@ func TestLoadOneDate(t *testing.T) {
 		},
 	}
 
-	dma := DataMongoAccessor{}
+	dma := New()
 	new_d, _, _ := dma.StoreOne(&d)
 	assert.Equal(t, d, new_d)
 }
diff --git a/models/resources/datacenter/datacenter.go b/models/resources/datacenter/datacenter.go
index 4e27e2a..09f122d 100644
--- a/models/resources/datacenter/datacenter.go
+++ b/models/resources/datacenter/datacenter.go
@@ -34,7 +34,7 @@ func (dma *DatacenterResource) Serialize() map[string]interface{} {
 }
 
 func (d *DatacenterResource) GetAccessor() utils.Accessor {
-	data := &DatacenterMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.DATACENTER_RESOURCE)
 	return data
 }
diff --git a/models/resources/datacenter/datacenter_mongo_accessor.go b/models/resources/datacenter/datacenter_mongo_accessor.go
index 871c8bc..fdfeea5 100644
--- a/models/resources/datacenter/datacenter_mongo_accessor.go
+++ b/models/resources/datacenter/datacenter_mongo_accessor.go
@@ -6,29 +6,33 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type DatacenterMongoAccessor struct {
+type datacenterMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (dca *DatacenterMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *datacenterMongoAccessor {
+	return &datacenterMongoAccessor{}
+}
+
+func (dca *datacenterMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return dca.GenericDeleteOne(id, dca)
 }
 
-func (dca *DatacenterMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (dca *datacenterMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	set.(*DatacenterResource).ResourceModel = nil
 	return dca.GenericUpdateOne(set, id, dca, &DatacenterResource{})
 }
 
-func (dca *DatacenterMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (dca *datacenterMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	data.(*DatacenterResource).ResourceModel = nil
 	return dca.GenericStoreOne(data, dca)
 }
 
-func (dca *DatacenterMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (dca *datacenterMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return dca.GenericStoreOne(data, dca)
 }
 
-func (dca *DatacenterMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (dca *datacenterMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	var datacenter DatacenterResource
 
 	res_mongo, code, err := mongo.MONGOService.LoadOne(id, dca.GetType())
@@ -46,7 +50,7 @@ func (dca *DatacenterMongoAccessor) LoadOne(id string) (utils.DBObject, int, err
 	return &datacenter, 200, nil
 }
 
-func (wfa DatacenterMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa datacenterMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -68,7 +72,7 @@ func (wfa DatacenterMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, erro
 	return objs, 200, nil
 }
 
-func (wfa *DatacenterMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *datacenterMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractresource.abstractobject.name", "abstractresource.short_description", "abstractresource.description", "abstractresource.owner", "abstractresource.source_url"}, wfa.GetType())
 	if err != nil {
diff --git a/models/resources/datacenter/datacenter_test.go b/models/resources/datacenter/datacenter_test.go
index 5bfee9d..ec31a26 100644
--- a/models/resources/datacenter/datacenter_test.go
+++ b/models/resources/datacenter/datacenter_test.go
@@ -21,7 +21,7 @@ func TestStoreOneDatacenter(t *testing.T) {
 		},
 	}
 
-	dcma := DatacenterMongoAccessor{}
+	dcma := New()
 	id, _, _ := dcma.StoreOne(&dc)
 
 	assert.NotEmpty(t, id)
@@ -39,7 +39,7 @@ func TestLoadOneDatacenter(t *testing.T) {
 		},
 	}
 
-	dcma := DatacenterMongoAccessor{}
+	dcma := New()
 	new_dc, _, _ := dcma.StoreOne(&dc)
 
 	assert.Equal(t, dc, new_dc)
diff --git a/models/resources/processing/processing.go b/models/resources/processing/processing.go
index f4be8cb..dcd8a3f 100644
--- a/models/resources/processing/processing.go
+++ b/models/resources/processing/processing.go
@@ -17,9 +17,6 @@ type ProcessingResource struct {
 	Parallel     bool              `bson:"parallel,omitempty" json:"parallel,omitempty"`
 	ScalingModel uint              `bson:"scaling_model,omitempty" json:"scaling_model,omitempty"`
 	DiskIO       string            `bson:"disk_io,omitempty" json:"disk_io,omitempty"`
-
-	// Price   uint   `bson:"price,omitempty" json:"price,omitempty"`
-	// License string `bson:"license,omitempty" json:"license,omitempty"`
 }
 
 func (dma *ProcessingResource) Deserialize(j map[string]interface{}) utils.DBObject {
@@ -42,7 +39,7 @@ func (dma *ProcessingResource) Serialize() map[string]interface{} {
 }
 
 func (d *ProcessingResource) GetAccessor() utils.Accessor {
-	data := &ProcessingMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.PROCESSING_RESOURCE)
 	return data
 }
diff --git a/models/resources/processing/processing_mongo_accessor.go b/models/resources/processing/processing_mongo_accessor.go
index 7255711..0f4bcb2 100644
--- a/models/resources/processing/processing_mongo_accessor.go
+++ b/models/resources/processing/processing_mongo_accessor.go
@@ -6,29 +6,33 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type ProcessingMongoAccessor struct {
+type processingMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (pma *ProcessingMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *processingMongoAccessor {
+	return &processingMongoAccessor{}
+}
+
+func (pma *processingMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return pma.GenericDeleteOne(id, pma)
 }
 
-func (pma *ProcessingMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (pma *processingMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	set.(*ProcessingResource).ResourceModel = nil
 	return pma.GenericUpdateOne(set, id, pma, &ProcessingResource{})
 }
 
-func (pma *ProcessingMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (pma *processingMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	data.(*ProcessingResource).ResourceModel = nil
 	return pma.GenericStoreOne(data, pma)
 }
 
-func (pma *ProcessingMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (pma *processingMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return pma.GenericStoreOne(data, pma)
 }
 
-func (pma *ProcessingMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (pma *processingMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 
 	var processing ProcessingResource
 
@@ -47,7 +51,7 @@ func (pma *ProcessingMongoAccessor) LoadOne(id string) (utils.DBObject, int, err
 	return &processing, 200, nil
 }
 
-func (wfa ProcessingMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa processingMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -69,7 +73,7 @@ func (wfa ProcessingMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, erro
 	return objs, 200, nil
 }
 
-func (wfa *ProcessingMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *processingMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractresource.abstractobject.name", "abstractresource.short_description", "abstractresource.description", "abstractresource.owner", "abstractresource.source_url"}, wfa.GetType())
 	if err != nil {
diff --git a/models/resources/storage/storage.go b/models/resources/storage/storage.go
index ce7748e..5a1cb8b 100644
--- a/models/resources/storage/storage.go
+++ b/models/resources/storage/storage.go
@@ -44,7 +44,7 @@ func (dma *StorageResource) Serialize() map[string]interface{} {
 }
 
 func (d *StorageResource) GetAccessor() utils.Accessor {
-	data := &StorageMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.STORAGE_RESOURCE)
 	return data
 }
diff --git a/models/resources/storage/storage_mongo_accessor.go b/models/resources/storage/storage_mongo_accessor.go
index d6958e8..329b880 100644
--- a/models/resources/storage/storage_mongo_accessor.go
+++ b/models/resources/storage/storage_mongo_accessor.go
@@ -6,29 +6,33 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type StorageMongoAccessor struct {
+type storageMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (sma *StorageMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *storageMongoAccessor {
+	return &storageMongoAccessor{}
+}
+
+func (sma *storageMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return sma.GenericDeleteOne(id, sma)
 }
 
-func (sma *StorageMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (sma *storageMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	set.(*StorageResource).ResourceModel = nil
 	return sma.GenericUpdateOne(set, id, sma, &StorageResource{})
 }
 
-func (sma *StorageMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (sma *storageMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	data.(*StorageResource).ResourceModel = nil
 	return sma.GenericStoreOne(data, sma)
 }
 
-func (sma *StorageMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (sma *storageMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return sma.GenericStoreOne(data, sma)
 }
 
-func (sma *StorageMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (sma *storageMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 
 	var storage StorageResource
 
@@ -47,7 +51,7 @@ func (sma *StorageMongoAccessor) LoadOne(id string) (utils.DBObject, int, error)
 	return &storage, 200, nil
 }
 
-func (wfa StorageMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa storageMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -69,7 +73,7 @@ func (wfa StorageMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error)
 	return objs, 200, nil
 }
 
-func (wfa *StorageMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *storageMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractresource.abstractobject.name", "abstractresource.short_description", "abstractresource.description", "abstractresource.owner", "abstractresource.source_url"}, wfa.GetType())
 	if err != nil {
diff --git a/models/resources/storage/storage_test.go b/models/resources/storage/storage_test.go
index 29a5fa4..e202a51 100644
--- a/models/resources/storage/storage_test.go
+++ b/models/resources/storage/storage_test.go
@@ -21,7 +21,7 @@ func TestStoreOneStorage(t *testing.T) {
 		},
 	}
 
-	sma := StorageMongoAccessor{}
+	sma := New()
 	id, _, _ := sma.StoreOne(&s)
 
 	assert.NotEmpty(t, id)
@@ -39,7 +39,7 @@ func TestLoadOneStorage(t *testing.T) {
 		},
 	}
 
-	sma := StorageMongoAccessor{}
+	sma := New()
 	new_s, _, _ := sma.StoreOne(&s)
 
 	assert.Equal(t, s, new_s)
diff --git a/models/resources/workflow/workflow.go b/models/resources/workflow/workflow.go
index 1a948d4..b19bea0 100644
--- a/models/resources/workflow/workflow.go
+++ b/models/resources/workflow/workflow.go
@@ -13,7 +13,7 @@ type WorkflowResource struct {
 }
 
 func (d *WorkflowResource) GetAccessor() utils.Accessor {
-	data := &WorkflowResourceMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.WORKFLOW_RESOURCE)
 	return data
 }
diff --git a/models/resources/workflow/workflow_mongo_accessor.go b/models/resources/workflow/workflow_mongo_accessor.go
index 5f6ac55..2dcd342 100644
--- a/models/resources/workflow/workflow_mongo_accessor.go
+++ b/models/resources/workflow/workflow_mongo_accessor.go
@@ -6,25 +6,29 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type WorkflowResourceMongoAccessor struct {
+type workflowResourceMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (wfa *WorkflowResourceMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *workflowResourceMongoAccessor {
+	return &workflowResourceMongoAccessor{}
+}
+
+func (wfa *workflowResourceMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return wfa.GenericDeleteOne(id, wfa)
 }
 
-func (wfa *WorkflowResourceMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (wfa *workflowResourceMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	set.(*WorkflowResource).ResourceModel = nil
 	return wfa.GenericUpdateOne(set, id, wfa, &WorkflowResource{})
 }
 
-func (wfa *WorkflowResourceMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workflowResourceMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	data.(*WorkflowResource).ResourceModel = nil
 	return wfa.GenericStoreOne(data, wfa)
 }
 
-func (wfa *WorkflowResourceMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workflowResourceMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	res, _, _ := wfa.LoadOne(data.GetID())
 	data.(*WorkflowResource).WorkflowID = data.GetID()
 	if res == nil {
@@ -35,7 +39,7 @@ func (wfa *WorkflowResourceMongoAccessor) CopyOne(data utils.DBObject) (utils.DB
 	}
 }
 
-func (wfa *WorkflowResourceMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (wfa *workflowResourceMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	var workflow WorkflowResource
 	res_mongo, code, err := mongo.MONGOService.LoadOne(id, wfa.GetType())
 	if err != nil {
@@ -51,7 +55,7 @@ func (wfa *WorkflowResourceMongoAccessor) LoadOne(id string) (utils.DBObject, in
 	return &workflow, 200, nil
 }
 
-func (wfa WorkflowResourceMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa workflowResourceMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -73,7 +77,7 @@ func (wfa WorkflowResourceMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int
 	return objs, 200, nil
 }
 
-func (wfa *WorkflowResourceMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *workflowResourceMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractresource.abstractobject.name", "abstractresource.short_description", "abstractresource.description", "abstractresource.owner", "abstractresource.source_url"}, wfa.GetType())
 	if err != nil {
diff --git a/models/resources/workflow/workflow_test.go b/models/resources/workflow/workflow_test.go
index 2a6c5dc..0a7cf10 100644
--- a/models/resources/workflow/workflow_test.go
+++ b/models/resources/workflow/workflow_test.go
@@ -20,7 +20,7 @@ func TestStoreOneWorkflow(t *testing.T) {
 	},
 	}
 
-	wma := WorkflowResourceMongoAccessor{}
+	wma := New()
 	id, _, _ := wma.StoreOne(&w)
 
 	assert.NotEmpty(t, id)
@@ -37,7 +37,7 @@ func TestLoadOneWorkflow(t *testing.T) {
 	},
 	}
 
-	wma := WorkflowResourceMongoAccessor{}
+	wma := New()
 	new_w, _, _ := wma.StoreOne(&w)
 	assert.Equal(t, w, new_w)
 }
diff --git a/models/workflow/workflow.go b/models/workflow/workflow.go
index 2dea1be..1e0a86b 100644
--- a/models/workflow/workflow.go
+++ b/models/workflow/workflow.go
@@ -32,7 +32,7 @@ func (d *Workflow) GetName() string {
 }
 
 func (d *Workflow) GetAccessor() utils.Accessor {
-	data := &WorkflowMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.WORKFLOW)
 	return data
 }
diff --git a/models/workflow/workflow_mongo_accessor.go b/models/workflow/workflow_mongo_accessor.go
index 0a51011..83ad68a 100644
--- a/models/workflow/workflow_mongo_accessor.go
+++ b/models/workflow/workflow_mongo_accessor.go
@@ -12,15 +12,19 @@ import (
 	"github.com/vk496/cron"
 )
 
-type WorkflowMongoAccessor struct {
+type workflowMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (wfa *WorkflowMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *workflowMongoAccessor {
+	return &workflowMongoAccessor{}
+}
+
+func (wfa *workflowMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return wfa.GenericDeleteOne(id, wfa)
 }
 
-func (wfa *WorkflowMongoAccessor) execution(realData *Workflow, delete bool) (int, error) {
+func (wfa *workflowMongoAccessor) execution(realData *Workflow, delete bool) (int, error) {
 	if delete {
 		mongo.MONGOService.DeleteMultiple(map[string]interface{}{
 			"workflow_id": realData.UUID,
@@ -65,7 +69,7 @@ func (wfa *WorkflowMongoAccessor) execution(realData *Workflow, delete bool) (in
 	return 200, nil
 }
 
-func (wfa *WorkflowMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (wfa *workflowMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	fmt.Println(set.Serialize())
 	if code, err := wfa.execution(set.(*Workflow), true); err != nil {
 		return nil, code, err
@@ -73,7 +77,7 @@ func (wfa *WorkflowMongoAccessor) UpdateOne(set utils.DBObject, id string) (util
 	return wfa.GenericUpdateOne(set, id, wfa, &Workflow{})
 }
 
-func (wfa *WorkflowMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workflowMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	res, code, err := wfa.GenericStoreOne(data, wfa)
 	if err != nil {
 		return nil, code, err
@@ -84,11 +88,11 @@ func (wfa *WorkflowMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject,
 	return res, code, err
 }
 
-func (wfa *WorkflowMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workflowMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return wfa.GenericStoreOne(data, wfa)
 }
 
-func (wfa *WorkflowMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (wfa *workflowMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	var workflow Workflow
 	res_mongo, code, err := mongo.MONGOService.LoadOne(id, wfa.GetType())
 	if err != nil {
@@ -138,7 +142,7 @@ func (wfa *WorkflowMongoAccessor) LoadOne(id string) (utils.DBObject, int, error
 	return &workflow, 200, nil
 }
 
-func (wfa WorkflowMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa workflowMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -155,7 +159,7 @@ func (wfa WorkflowMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error)
 	return objs, 200, nil
 }
 
-func (wfa *WorkflowMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *workflowMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractobject.name"}, wfa.GetType())
 	if err != nil {
diff --git a/models/workflow/workflow_test.go b/models/workflow/workflow_test.go
index a869b89..fb81bab 100644
--- a/models/workflow/workflow_test.go
+++ b/models/workflow/workflow_test.go
@@ -12,7 +12,7 @@ func TestStoreOneWorkflow(t *testing.T) {
 		AbstractObject: utils.AbstractObject{Name: "testWorkflow"},
 	}
 
-	wma := WorkflowMongoAccessor{}
+	wma := New()
 	id, _, _ := wma.StoreOne(&w)
 
 	assert.NotEmpty(t, id)
@@ -23,7 +23,7 @@ func TestLoadOneWorkflow(t *testing.T) {
 		AbstractObject: utils.AbstractObject{Name: "testWorkflow"},
 	}
 
-	wma := WorkflowMongoAccessor{}
+	wma := New()
 	new_w, _, _ := wma.StoreOne(&w)
 	assert.Equal(t, w, new_w)
 }
diff --git a/models/workflow_execution/workflow_execution.go b/models/workflow_execution/workflow_execution.go
index a8f5560..ebf01cf 100644
--- a/models/workflow_execution/workflow_execution.go
+++ b/models/workflow_execution/workflow_execution.go
@@ -58,7 +58,7 @@ func (d *WorkflowExecution) GetName() string {
 }
 
 func (d *WorkflowExecution) GetAccessor() utils.Accessor {
-	data := &WorkflowExecutionMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.WORKFLOW_EXECUTION)
 	return data
 }
diff --git a/models/workflow_execution/workflow_execution_mongo_accessor.go b/models/workflow_execution/workflow_execution_mongo_accessor.go
index 4596602..da5f0ff 100644
--- a/models/workflow_execution/workflow_execution_mongo_accessor.go
+++ b/models/workflow_execution/workflow_execution_mongo_accessor.go
@@ -5,27 +5,31 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type WorkflowExecutionMongoAccessor struct {
+type workflowExecutionMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (wfa *WorkflowExecutionMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *workflowExecutionMongoAccessor {
+	return &workflowExecutionMongoAccessor{}
+}
+
+func (wfa *workflowExecutionMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return wfa.GenericDeleteOne(id, wfa)
 }
 
-func (wfa *WorkflowExecutionMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (wfa *workflowExecutionMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	return wfa.GenericUpdateOne(set, id, wfa, &WorkflowExecution{})
 }
 
-func (wfa *WorkflowExecutionMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workflowExecutionMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return wfa.GenericStoreOne(data, wfa)
 }
 
-func (wfa *WorkflowExecutionMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workflowExecutionMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return wfa.GenericStoreOne(data, wfa)
 }
 
-func (wfa *WorkflowExecutionMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (wfa *workflowExecutionMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	var workflow WorkflowExecution
 	res_mongo, code, err := mongo.MONGOService.LoadOne(id, wfa.GetType())
 	if err != nil {
@@ -36,7 +40,7 @@ func (wfa *WorkflowExecutionMongoAccessor) LoadOne(id string) (utils.DBObject, i
 	return &workflow, 200, nil
 }
 
-func (wfa WorkflowExecutionMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa workflowExecutionMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -53,7 +57,7 @@ func (wfa WorkflowExecutionMongoAccessor) LoadAll() ([]utils.ShallowDBObject, in
 	return objs, 200, nil
 }
 
-func (wfa *WorkflowExecutionMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *workflowExecutionMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{}, wfa.GetType())
 	if err != nil {
diff --git a/models/workspace/workspace.go b/models/workspace/workspace.go
index 6c34f71..7f93775 100644
--- a/models/workspace/workspace.go
+++ b/models/workspace/workspace.go
@@ -27,7 +27,7 @@ func (d *Workspace) GetName() string {
 }
 
 func (d *Workspace) GetAccessor() utils.Accessor {
-	data := &WorkspaceMongoAccessor{}
+	data := New()
 	data.SetLogger(utils.WORKSPACE)
 	return data
 }
diff --git a/models/workspace/workspace_mongo_accessor.go b/models/workspace/workspace_mongo_accessor.go
index 6a4932d..dfb8223 100644
--- a/models/workspace/workspace_mongo_accessor.go
+++ b/models/workspace/workspace_mongo_accessor.go
@@ -1,6 +1,8 @@
 package workspace
 
 import (
+	"errors"
+
 	"cloud.o-forge.io/core/oc-lib/dbs/mongo"
 	"cloud.o-forge.io/core/oc-lib/models/resources/data"
 	"cloud.o-forge.io/core/oc-lib/models/resources/datacenter"
@@ -10,15 +12,19 @@ import (
 	"cloud.o-forge.io/core/oc-lib/models/utils"
 )
 
-type WorkspaceMongoAccessor struct {
+type workspaceMongoAccessor struct {
 	utils.AbstractAccessor
 }
 
-func (wfa *WorkspaceMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
+func New() *workspaceMongoAccessor {
+	return &workspaceMongoAccessor{}
+}
+
+func (wfa *workspaceMongoAccessor) DeleteOne(id string) (utils.DBObject, int, error) {
 	return wfa.GenericDeleteOne(id, wfa)
 }
 
-func (wfa *WorkspaceMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
+func (wfa *workspaceMongoAccessor) UpdateOne(set utils.DBObject, id string) (utils.DBObject, int, error) {
 	d := set.(*Workspace)
 	d.DataResources = nil
 	d.DatacenterResources = nil
@@ -39,21 +45,24 @@ func (wfa *WorkspaceMongoAccessor) UpdateOne(set utils.DBObject, id string) (uti
 	return wfa.GenericUpdateOne(set, id, wfa, &Workspace{})
 }
 
-func (wfa *WorkspaceMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workspaceMongoAccessor) StoreOne(data utils.DBObject) (utils.DBObject, int, error) {
 	d := data.(*Workspace)
 	d.DataResources = nil
 	d.DatacenterResources = nil
 	d.StorageResources = nil
 	d.ProcessingResources = nil
 	d.WorkflowResources = nil
+	if res, _, _ := wfa.Search(d.Name); len(res) > 0 {
+		return nil, 409, errors.New("Workspace with name " + d.Name + " already exists")
+	}
 	return wfa.GenericStoreOne(d, wfa)
 }
 
-func (wfa *WorkspaceMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
+func (wfa *workspaceMongoAccessor) CopyOne(data utils.DBObject) (utils.DBObject, int, error) {
 	return wfa.GenericStoreOne(data, wfa)
 }
 
-func (wfa *WorkspaceMongoAccessor) fill(workflow *Workspace) *Workspace {
+func (wfa *workspaceMongoAccessor) fill(workflow *Workspace) *Workspace {
 	if workflow.Datas != nil && len(workflow.Datas) > 0 {
 		dataAccessor := (&data.DataResource{}).GetAccessor()
 		for _, id := range workflow.Datas {
@@ -102,7 +111,7 @@ func (wfa *WorkspaceMongoAccessor) fill(workflow *Workspace) *Workspace {
 	return workflow
 }
 
-func (wfa *WorkspaceMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
+func (wfa *workspaceMongoAccessor) LoadOne(id string) (utils.DBObject, int, error) {
 	var workflow Workspace
 	res_mongo, code, err := mongo.MONGOService.LoadOne(id, wfa.GetType())
 	if err != nil {
@@ -114,7 +123,7 @@ func (wfa *WorkspaceMongoAccessor) LoadOne(id string) (utils.DBObject, int, erro
 	return wfa.fill(&workflow), 200, nil
 }
 
-func (wfa WorkspaceMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
+func (wfa workspaceMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.LoadAll(wfa.GetType())
 	if err != nil {
@@ -131,7 +140,7 @@ func (wfa WorkspaceMongoAccessor) LoadAll() ([]utils.ShallowDBObject, int, error
 	return objs, 200, nil
 }
 
-func (wfa *WorkspaceMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
+func (wfa *workspaceMongoAccessor) Search(word string) ([]utils.ShallowDBObject, int, error) {
 	objs := []utils.ShallowDBObject{}
 	res_mongo, code, err := mongo.MONGOService.Search(word, []string{"abstractobject.name"}, wfa.GetType())
 	if err != nil {