Software Quality and Software Testing in Internet Times

Transcription

1 Dirk Meyerhoff, Begona Laibarra, Rob van der Pouw Kraan, Alan Wallet (Eds.) Software Quality and Software Testing in Internet Times With Contributions of Stale Amland, Walter Bischofberger, Arnim Buch, Astrid Dehnel, Tessa Doring, Stefan Engelkamp, Thomas Fehlmann, Elmar Fichtl, Stephan Friedrich, Ulrich Hasenkamp, Dirk Huberty, Paul Keese, Dirk Kirstein, Andreas Kramp, Jens Lehmbach, Claus Lewerentz, Martin Lippert, Christoph Mecke, Michael Meyer, Trevor Price, Werner Schmitz-Thrun, Katrin Severid, Frank Simon, David Singleton, Jarle Vaga, Erik van Veenendaal, Michael Vetter, Steve Willis, Jan-Gerold Winter, Heinz Ziillighoven Springer

2 Table of Contents Jens Lehtnbach, Ulrich Hasenkamp Systems Development in Internet Times - Overview and Perspectives 1 Part I: Managing for Optimal Time to Market Jarle Vdga, Stale Amland Managing High-Speed Web Testing 1 Project Background 2 "High-Speed" Methods and Preparation Exploratory Testing Pair Testing 25 3 "High-Speed" Test Planning 25 4 "High-Speed" Test Execution 5 The Web Testing Experience Warning! 7 Acknowledgements Steve Willis Using QA for Risk Management in Web Projects 1 Increased Visibility of Application Failure 31 2 Risk and Management Thereof Identify the Risks 2.2 Problem Perfect Quantify the Risks Manage the Risks Communicate the Risks 2.6 Monitor the Risks Examples of Risks Additional Factors that Impact upon Risk 36 3 QA as a Risk Management Technique Simple Prioritisation of QA and Testing against Risk The Role of the QA and Test Strategy QA and Test Planning Against the Identified Risks 42 4 Summary 48 Andreas Kramp, Tessa Doring, Stephan Friedrich Establishing Quality Procedures for Incremental Software Development 1 Introduction 49 2 Establishing a QM Procedure 50

3 VIII Table of Contents 2.1 Defining the Phases of the Development Procedure Definition of Quality Management Integrated in the Process Flow 2.3 Co-operation with Other Project-Integrated Tasks Experience with Integrated Quality Management 4 Acceptance Procedure Objective and Content of the Acceptance Process Integration in the Software Development Production Process 4.3 Sequence of the Acceptance Process Inspection Criteria for Result Types 58 5 Experience Gained in Establishing the Acceptance Process 61 6 Summary 62 Part II: Processes Michael Meyer, Astrid Dehnel, Elmar Fichtl Designing Processes for User-oriented Quality Engineering 1 Introduction 65 2 Role, Significance and Design of Processes 2.1 Starting Basis Roles Flexible Application of the Processes in Practice 70 3 User-centred Quality Engineering: A Customer-Oriented Approach Including Acceptability, Usability and Quality-of-Service Analysis Motivation Usability, Acceptability and Quality Assessment Integrated Process-Accompanying Approach 73 4 Integration of User-Centred Quality Engineering and Quality Criteria for Processes Analysis Integration in the Processes Experiences 83 5 Summary 84 Martin Lippert, Heinz Zullighoven Using Extreme Programming to Manage High-Risk Projects Successfully 1 Flexible Processes for High-Risk Projects Risk Extreme Programming 2 Steering XP Projects The Planning Game 2.2 Small and Frequent Releases Project Planning Experience: Facts and Numbers 3.1 Small Releases Internal Daily Planning Estimates and Forecasts Lessons Learned Summary and Perspective 100

4 Table of Contents IX Dirk Huberty Adapting the Test Process for Web Applications - Strategies from Practice 1 Introduction Internet Architecture and Infrastructure Quality Objectives for Internet Applications Classical Test Levels Testing Internet Applications Differences in Documentation and Developer Testing Differences in Functional Testing Differences in Overall Integration Testing Differences in Non-Functional Testing 5.5 Publishing Ill 6 Test Tools and Test Automation 7 Differences in Test Organisation 8 Summary 113 Part III: Testing from the User's Perspective Thomas Fehlmann Business-Oriented Testing in E-Commerce 1 Software Testing and E-Commerce 1.1 Testing in E-Commerce A Model for an E-Commerce System Interaction Scenarios & Testing Techniques 2.1 Scenario Overview User-Centred Testing 2.3 Business Process Testing Web Integration Testing Dynamic Testing According to Business Needs Combinatory Metrics Business Metrics Test Coverage Combinators 3.4 Example: Hotel Reservation System Conclusions 136 Paul Keese Strategic Testing: Focus on the Business 1 Introduction Business Processes and Integration Testing Testing Business Processes The Business Process "New Bank Account" Structuring the Test Organisation of Integration Testing Description of Software to be Tested 3.3 Test Item Definition From Business Process to Test Case Sequence 4.1 Level of Testing Intensity 4.2 Building a Test Case Sequence 144

5 XII Table of Contents 5 A Typical Software Quality Assessment The System Assessment 5.2 The Architecture Assessment The Design Assessment The Code Assessment 6 Summary/Outlook Katrin Severid, Jan-Gerold Winter "The Back-End Side of Web Testing": Integration of Legacy Systems 1 Introduction The Settlement System db trader MVS Test Environment of db trader MVS Development of NetTrader 5 Challenges for the Development of New Front-Ends Use of a Code Generator Regression Testing Configuration Management 9 Conclusion Part V: Test Automation Techniques and Tools Christoph Mecke Automated Testing of mysap Business Processes 1 Introduction Methodology Motivation for Testing in an SAP Environment Advantages of Automatic Testing Test Strategy The Modular Concept 2.5 Robustness and Adaptations Tools 3.1 The SAP Test Workbench Outlook Summary 279 Part VI: Appendix References 283 List of Contributors 289 Copyrights 295