How Do I: Use hierarchical Work Items in Team Foundation Server 2010?

In this video you will see how to create and manage hierarchies of work items in Team Foundation Server 2010. Specifically, you will learn how custom link types are defined in a process template, how to create links between work items manually as well as using drag and drop techniques, how to create flat list, direct links, and tree view queries, and how to access these hierarchies from Microsoft Excel and Team Web Access.