Work System Life Cycle Model
The dynamic view of a work system starts with the work system life cycle (WSLC) model, which shows how a work system may evolve through multiple iterations of four phases: operation and maintenance, initiation, development, and implementation. The names of the phases were chosen to describe both computerized and non-computerized systems, and to apply regardless of whether application software is acquired, built from scratch, or not used at all. The terms development and implementation have business-oriented meanings that are consistent with Markus and Mao’s (2004) distinction between system development and system implementation.
This model encompasses both planned and unplanned change. Planned change occurs through a full iteration encompassing the four phases, i.e., starting with an operation and maintenance phase, flowing through initiation, development, and implementation, and arriving at a new operation and maintenance phase. Unplanned change occurs through fixes, adaptations, and experimentation that can occur within any phase. The phases include the following activities:
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