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The University of San Francisco

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System life cycle

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Articles 1 - 3 of 3

Full-Text Articles in Business

The Work System Method For Understanding Information Systems And Information System Research, Steven Alter Jan 2002

The Work System Method For Understanding Information Systems And Information System Research, Steven Alter

Business Analytics and Information Systems

The work system method is a broadly applicable set of ideas that use the concept of “work system” as the focal point for understanding, analyzing, and improving systems in organizations, whether or not IT is involved. The premises underlying this method may be controversial in the IS community because they imply that the traditional jargon and concerns of IS practitioners and researchers address only part of the issues that should be covered and may discourage focusing on other core issues related to successful projects and systems.

The work system method includes both a static view of a current (or proposed) …


Tdg Engineering: Do We Need Another Upgrade?, Steven Cox, Renee Dulfer, David Han, Ubaldo Ruiz, Steven Alter Jan 2002

Tdg Engineering: Do We Need Another Upgrade?, Steven Cox, Renee Dulfer, David Han, Ubaldo Ruiz, Steven Alter

Business Analytics and Information Systems

This case covers an important decision of a type that confronts many managers. Several years ago TDG Engineering upgraded its IT network infrastructure, and now experienced and trusted employees are recommending yet another upgrade. The question at hand is whether this upgrade is justified, and how long the new capabilities will last before another request for yet another upgrade. In addition to addressing issues about the importance of infrastructure and the justification of IT investments, this case provides an example that illustrates concepts related to system life cycles, the alignment between business strategy and IT strategy, and the uncertainties related …


Which Life Cycle -- Work System, Information System, Or Software?, Steven Alter Jan 2001

Which Life Cycle -- Work System, Information System, Or Software?, Steven Alter

Business Analytics and Information Systems

This article presents the work system life cycle (WSLC) model, according to which a work system, an information system, or a software product passes through one or more iterations of four phases: initiation, development, implementation, and operation and maintenance. Although this descriptive model is both clear enough to understand readily and specific eno ugh to apply easily, it encompasses a variety of other models commonly used to describe information system life cycles, organizational change processes, projects, and the life cycles of software products. The explicit inclusion of both an operation and maintenance phase and iterations allows it to cover both …