Amendment Standard - Inactive-Reserved. Amend the guide to add guidelines for producing reusable TSFs for use on platforms utilizing ATML, and produce example TSFs showing conformance with the guidelines. This guide explains how signal definitions and test requirements may be implemented in conformance with IEEE Std 1641-2010. It also provides background information, tutorial support, and examples of signal definitions and test requirements for users of the standard. TSFs are major component for adhering with the IEEE Std 1641. There is little guidance in helping users create their own reusable TSFs or examples that show good practices to copy.