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Fundamental Concepts

An Experimental Investigation of Formality in UML- Based Development Lionel C.Briand,Senior Member IEEE, Yvan Labiche, Member IEEE,Massimilia Di Penta,Meber IEEE and Han Yan-Bondoc Sonal Halbe Department of Computer and Information Science. Fundamental Concepts. UML Modeling language OCL

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Fundamental Concepts

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  1. An Experimental Investigation of Formality in UML- Based DevelopmentLionel C.Briand,Senior Member IEEE, Yvan Labiche, Member IEEE,Massimilia Di Penta,Meber IEEE and Han Yan-BondocSonal HalbeDepartment of Computer and Information Science

  2. Fundamental Concepts • UML • Modeling language • OCL • Expression Language • Modeling Language • Formal Language

  3. Objective Is this degree of formality (OCL) required in the early phases of software development to develop high-quality software?

  4. Experiments Involved Two controlled experiments that study the impact of OCL on three software engineering activities: • DefectDetection • Comprehension • Maintainability

  5. Experiment 1 • Subject • Two systems • Three dependent variables

  6. Analysis of Experiment 1 • Method • Ability • System

  7. Experiment 2 • Increase in number of subjects • More training in UML system analysis documents and OCL expressions • More time allotted for Maintenance task

  8. Analysis of Experiment

  9. Validity Threats • Internal Validity • External Validity • Construct Validity

  10. Conclusion • OCL has a positive effect • Results are not specific to OCL

  11. Questions ?

  12. Effect of Ability

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