Tailoring - The deliberate adaptation of approach, governance, and processes to make them more suitable for the given environment and the work at hand. 

Task Management - The process of tracking, monitoring, and executing a task within a larger project and its lifecycle. Task Management is a fundamental part of being a project manager as each task is integral to the completion of a project. 

Test Plan - A document describing deliverables that will be tested, tests that will be conducted, and the processes that will be use in the testing.

Threat - A risks that would have a negative effect on one or more project objectives.

Timebox - A short, fixed period of time in which work is to be completed.

Tolerance - The quantified description of acceptable variation for a quality requirement.