Task Chains

A-B-C- D-E-F- G-H-I- J-K-L- M-N-O- P-Q-R- S-T-U- V-W-X- Y-Z

Identification

Definitions/Uses

2001
Reference	/Scacchi, 2001/ Process Models in Software Engineering
Definition/ Use	Task chains represent a non-linear sequence of actions that structure and transform available computational objects (resources) into intermediate or finished products. Non-linearity implies that the sequence of actions may be non-deterministic, iterative, accommodate multiple/parallel alternatives, as well as partially ordered to account for incremental progress. Task actions in turn can be viewed a non-linear sequences of primitive actions which denote atomic units of computing work, such as user's selection of a command or menu entry using mouse or keyboard. Winograd and others have referred to these units of cooperative work between people and computers as "structured discourses of work" /Winograd, 1986/, while task chains have become popularized under the name of "workflow" /Bolcer, 1998/. Task chains can be employed to characterize either prescriptive or descriptive actions sequences.

See also

GDPA Online Last Updated 29.May.2002 Updated by Webmaster Last Revised 29.May.2002 Revised by Webmaster