From the Agency Data Model (EDM) and Object Services to EntityClient and Workspace articles, this book covers it all. Working with Object Services (Excerpt from Chapter 9) Most of the work you will do in the Entity Framework will involve objects that are based on the entities in your Entity Data Model (EDM). Object Services API is part of a framework that creates and manages these objects. You will learn about how the query is processed and turned into objects, how objects are managed during their lifecycle, and how the Object Services is responsible for how entities are related to each other. Where Did Object Services Fit into the Framework? Object Services are top of the food chain in the Entity Framework. As shown in the figure, Object Services beginning your process and LINQ to Entities ObjectQuery questions, and materialized query results into objects. Service object associated with the Entity Framework stack You can divide the core functions of the Object Services into seven areas: 1) Query processing 2) Object embodiment 3) Object management 4) Object relations management 5) Object state management 6) Database Manipulation Language (DML) command processing 7) Additional Features