Exam 3: Information Systems Development

RAD stands for:

Risk feasibility is the probability of a successful implementation using the chosen technology and approach.

The ________________ approach to development completes enough analysis, design, and implementation to fully develop a part of the new system and place it into operation as quickly as possible.

Which of the following methodologies uses small-scale, working models for users to react to?

Forward engineering allows a CASE tool to read existing program code and transform that code into a representative system model that can be edited and refined by the systems analyst.

Reverse engineering requires the systems analyst to draw system models, either from scratch or from templates. The resulting models are subsequently transformed into program code.

Cost effectiveness is the result obtained by striking a balance between the lifetime costs of developing, maintaining, and operating an information system and the benefits derived from the system.

System support is the ongoing technical support for users, as well as the maintenance required to fix any errors, omissions or new requirements that may arise.

Project management is an ongoing activity that documents, manages the use of, and improves an organization's chosen methodology for systems development. It is concerned with the activities, deliverables, and quality standards to be applied to all projects.

The first principle of a systems development methodology is to get the system owners and system users involved.

With the _______________________________ approach to systems development, multiple feasibility checkpoints are built into any systems development methodology. At each feasibility checkpoint, all costs are considered sunk (i.e., not recoverable). Thus, the project should be re-evaluated at each checkpoint to determine if it remains feasible to continue investing time, effort and resources.

Most information systems meet expectations and come in within budget.

The definition of feasibility is: