L4 - CS 514 Software Product Process Evaluation Lecture...

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CS 514 Software Product & Process Evaluation Lecture Notes 4: Empirical Studies in SE Fall 2008 James M. Bieman Copyright © 2000-2008 James M. Bieman 4-1 CS 514 Copyright © 2000-2008 James M. Bieman 4-1 Chapter 4 Empirical Studies in Empirical Studies in Software Engineering Sources [Fenton & Sources [Fenton & Pfleeger Pfleeger 97], 97], [ Wohlin et al 2000], [Campbell & Stanley 63] James M. Bieman Computer Science Dept Colorado State University CS 514 Copyright © 2000-2008 James M. Bieman 4-2 Outline Outline 1. Empiricism in software engineering. 2. Study Types. 3. Theories and hypotheses. 4. Study designs. 5. Threats to validity. 6. Data analysis. 7. Some empirical results. CS 514 Copyright © 2000-2008 James M. Bieman 4-3 Software Engineering is not Software Engineering is not Mathematics Mathematics We cannot derive the most interesting results from axioms: “Better software is produced by CMM level 5 organizations.” “XP increases programmer productivity.” These are really just hypotheses. Only empirical studies can support or refute such statements.
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