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Table 7 Empirical methods

From: Game development software engineering process life cycle: a systematic review

Empirical method Description
Survey One or more questionnaires are filled out by a set of subjects either directly or by Internet, and results are derived from the answers.
Experiment A specified task is performed in a highly controlled environment by a set of subjects. The results are the observations made by the subjects; in addition, task outcome inspection gives answers to research questions.
Case study According to a methodology, an activity, project, or assignment is examined, and project measurements provide results.