Model class

Contains a collection of external systems (LobSystem objects) that can be packaged as a group.

Namespace:  Microsoft.SharePoint.BusinessData.Administration
Assembly:  Microsoft.SharePoint (in Microsoft.SharePoint.dll)

[SharePointPermissionAttribute(SecurityAction.Demand, ObjectModel = true)]
public sealed class Model : IndividuallySecurableMetadataObject

Model functions are considered a collection of external content type objects, which may come from different external system objects. This allows all of the external content type objects of a system to be packaged together and considered as one group.

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.