Tests will be conducted in series and in parallel as datasets, software, tools, and resources become available. Together with pages in Confluence (i.e., the Glast wiki), this section of the workbook is intended to keep you informed of the needs, opportunities, and progress — as well as the "how-to" — of the various challenges. It will therefore be a continuous work in progress, and your participation, suggestions, and help in keeping it both relevant and current will be greatly appreciated.