Manipulating entity records in your server-side customization can be done using early bound or late bound classes. Early bound classes allow you to use Visual Studio intellisense and dot notations to access  and validate entity names and attribute names at compile-time. On the other hand, with a late bound entity, a developer will have to type the entity and attribute's names manually  which will be validated at runtime. Nonetheless, late bound entities have an advantage; they give you the flexibility to write generic code unbound to specific entities and attributes.