Exchange store(A storage platform that provides a single repository for managing multiple types of unstructured information in one infrastructure. The Exchange store combines the features and functionality of the file system, the Web, and a collaboration server (such as Microsoft Exchange) through a single, URL-addressable location for storing, accessing, and managing information, as well as building and running applications. The Exchange store is also known as the Web Storage System)
collection(An object that contains a set of related objects. An object's position in the collection can change whenever a change occurs in the collection; therefore, the position of any specific object in a collection may vary)
