Lab Experiment Is a Good Method for System Evaluation When

Multiple Choice

Lab Experiment is a good method for system evaluation when:

A) evaluators have a clear focus on specific consequences of design features on users performance;
B) evaluators want to obtain an understanding about the system use in real setting;
C) subjects for the evaluation are hard to recruit;
D) data about the system use from the whole user population are needed;
E) a company is working on the budget for developing an information system.