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Das Modul behandelt zunächst die Rolle empirischer Untersuchungen für den Informationsgewinn in der Forschung und Praxis der Informatik und stellt dann generisch das Vorgehen bei empirischen Untersuchungen vor (mit den folgenden Phasen: Definition der Fragestellung, Auswahl der Methode(n), Entwurf der Studie, Durchführung, Auswertung, Bericht/Präsentation).

Aufbauend auf diesem Grundverständnis und anhand der zentralen Qualitätsbegriffe von Glaubwürdigkeit (insbesondere innere Gültigkeit) und Relevanz (insbesondere äußere Gültigkeit) werden dann verschiedene Methodenklassen (z.B. kontrollierte Experimente, Quasiexperimente, Umfragen etc.) behandelt und jeweils anhand realer Fallbeispiele veranschaulicht: Eignung und Gegenanzeigen; Stärken und Schwächen; Vorgehen; Fallstricke.

In der Übung wird die Benutzung von Software für die Datenauswertung erlernt und eine kleine empirische Studie projekthaft komplett von der Konzeption bis zur Präsentation durchgeführt.

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The module focuses on the role of empirical evaluation and its impact on the knowledge gain in computer science research and practice and then generically introduces the approach of empirical evaluations (with the following phases: definition of the problem, choice of method(s), study design, execution, evaluation, report/presentation).

Starting from this basic knowledge and by means of the central quality terms of reliability (especially inner reliability) and relevance (especially outer validity) different methodic classes (e.g. controlled experiments, quasi experiments, surveys etc.) will be dealt with and illustrated respectively by real case studies: suitability and contraindications; strengths and weaknesses; approach and pitfalls.

In the tutorial the use of software for data evaluation is learned and a small empirical study carried out as a project starting with the conceptualization and ending with a presentation.

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Literatur

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Oliver Laitenberger, Thomas Beil, Thilo Schwinn: An Industrial Case Study to Examine a Non-Traditional Inspection Implementation for Requirements Specifications. Empirical Software Engineering 7(4): 345-374, 2002.
Yatin Chawathe, Sylvia Ratnasamy, Lee Breslau, Nick Lanham, Scott Shenker: Making Gnutella-like P2P Systems Scalable. Proceedings of ACM SIGCOMM 2003. April 2003.
Stephen G. Eick, Todd L. Graves, Alan F. Karr, J.S. Marron, Audris Mockus: Does Code Decay? Assessing the Evidence from Change Management Data. IEEE Transactions of Software Engineering 27(1):12, 2001.
Chris Sauer, D. Ross Jeffrey, Lesley Land, Philip Yetton: The Effectiveness of Software Development Technical Reviews: A Behaviorally Motivated Program of Research. IEEE Transactions on Software Engineering 26(1):14, January 2000.

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