Chapter 10. Evaluation. Objectives. Define the role of evaluation To understand the importance of evaluation Discuss how developers cope with real-world constraints. Explain the concepts and terms used to discuss evaluation.
Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.
The Star Life Cycle- adapted from Hix and Hartson, 1993
Factors to consider:
Choose an appropriate evaluation method for each situations in the next page.
In each case identify
home users, schoolchildren
Technique Heuristic evaluation
Representative tasks Sorting data, printing spreadsheet, formatting cells, adding
functions, producing graphs
Measurements Speed of recognition, accuracy of recognition, user-perceived
Outline plan Test the subjects with examples of each icon in various styles noting responsesSpread Sheet Package
Representative tasksAnything requiring shared decision making:
compensation claims, plea bargaining, complex issues with
a diverse range of expertise needed.
MeasurementsAccuracy of information presented and accessible, veracity
of audit trail of discussion, screen clutter and confusion,
confusion owing to turn-taking protocols
Outline planEvaluate by having experts walk through the system
performing tasks, commenting as necessaryGroup decision support system
SubjectsExams officer, secretaries, academics
TechniqueThink aloud, questionnaires
Representative tasksStoring marks, altering marks, deleting marks, collating
information, security protection
MeasurementsEase of use, levels of security and error correction provided,
accuracy of user
Outline plan Users perform tasks set, with running verbal commentary on
immediate thoughts and considered views gained by
questionnaire at end.