ACF2400 Lecture Notes - Lecture 12: Conceptual System, Acceptance Testing
Document Summary
How well it meets organisational and system objectives. How advantages weigh disadvantages: prepare design specifications and report. Conceptual designs are translated intodetailed specifications that are used to code and test computer programs. Requirement specifications are prepared for systems output, data storage, input, processing procedures and operations. A conceptual systems design report is prepared. Determine nature, format, content, and timing of reports, documents and screen displays. Types of documentation must be prepared for a new systems: development documentation. Is a description of a new ais: operations documentation. Operating schedules, files and databases accessed; equipment, securitym and file-retention requirements: user documentation. Types of system testing: walk-through, processing test data, acceptance test. Approaches to convert to the new systems (conversion: direct conversion. Risky because no back-up for fail situations: paralle conversion. Expensive, stressful to proces transaction twice: phased conversion. Implement new systems in particular departments/functions instead of completely convert at once. Risky system development projects are more feasible.
