Work items are the basis for recording work, requirement and test management in TFS and Azure DevOps (formerly Visual Studio Team Services [VSTS], prior to that Visual Studio Online). In TFS work items can be customized by editing the TFS Process Template. A process editor is available through the Team Foundation Server Power Tools. If you're feeling brave you can use the commandline directly using witadmin. Work items can be queried using Wiql.
Work items are the basis for recording and tracking development work, requirements and test management in the onsite tfs and the equivalent web based
azure-devops (formerly known as Visual Studio Team Services [VSTS]
and prior to that Visual Studio Online). The standard work items depend on the process selected.
In TFS work items can be customized by editing the tfs-process-template. There is a process editor available through the Team Foundation Server Power Tools tfpt. If you're feeling brave you can use the commandline directly using witadmin.
Work items can be queried using wiql.