APPENDIX A: GLOSSARY OF TERMS AND ACRONYMS

TERMS BEGINNING WITH W Wall-clock time: real elapsed time as measured by a clock on the wall. Warm storage: the middle tier that holds compressed summaries, easier to reach than cold storage. Warm tier: compressed summaries retrievable with one lookup. While-loop: a programming construct that repeats while a condition is true. Workspace: the area, such as a project folder, in which an agent does its work. Write conflict: two writers changing the same data at once.