Developer teams usually have some class naming conventions based on class functionality and roles it plays in patterns. For example, we use the following **postfixes**: 

* **Info** for data structure classes (only public properties, no methods, such as business entities).
* **Helper** for classes with common functionality used all over the project (StringHelper, FormatHelper, ImageHelper)
* **Controller** for MVC-controllers
* **Repository** for DAL classes that contains operations grouped by entity they dedicated to (PersonRepository, OrderRepository)
* **Manager** for business logic classes

Etc.

What are the naming conventions for postfixes/prefixes your team uses?