| Introduction | p. 1 |
| Design | p. 1 |
| Design Research | p. 2 |
| Main Issues | p. 6 |
| Lack of Overview of Existing Research | p. 6 |
| Lack of Use of Results in Practice | p. 7 |
| Lack of Scientific Rigour | p. 8 |
| Need for a Design Research Methodology | p. 9 |
| Objectives | p. 10 |
| Structure of This Book | p. 11 |
| Main Points | p. 12 |
| DRM: A Design Research Methodology | p. 13 |
| Introduction | p. 13 |
| Methodological Framework | p. 14 |
| Types of Research Within the DRM Framework | p. 18 |
| Representing Existing and Desired Situations | p. 19 |
| Graphical Representation | p. 20 |
| From Reference Model to Impact Model | p. 24 |
| Success Criteria and Measurable Success Criteria | p. 26 |
| The Main Stages | p. 29 |
| Research Clarification (RC) | p. 29 |
| Descriptive Study I (DS-I) | p. 31 |
| Prescriptive Study (PS) | p. 33 |
| Descriptive Study II (DS-II) | p. 35 |
| Summary | p. 38 |
| Comparison with Other Methodologies | p. 38 |
| Main Points | p. 41 |
| Research Clarification | p. 43 |
| Research Clarification Process | p. 44 |
| Identifying Overall Topic of Interest | p. 45 |
| Clarifying Current Understanding and Expectations | p. 51 |
| Clarifying Criteria, Main Questions and Hypotheses | p. 57 |
| Criteria | p. 57 |
| Research Questions and Hypotheses | p. 59 |
| Selecting Type of Research | p. 60 |
| Determining Areas of Relevance and Contribution | p. 63 |
| Formulating Overall Research Plan | p. 67 |
| Overall Research Plan | p. 67 |
| Visualisation Exercise | p. 68 |
| Reflection on RC | p. 69 |
| General Guidelines on Doing Research | p. 70 |
| Main Points | p. 72 |
| Descriptive Study I: Understanding Design | p. 75 |
| Schools of Thought | p. 76 |
| Types of DS-I | p. 80 |
| DS-I Process Steps | p. 80 |
| Reviewing Literature | p. 81 |
| Identifying Literature | p. 82 |
| Summarising Literature | p. 83 |
| Updating Reference and Impact Models | p. 86 |
| Determining Research Focus | p. 89 |
| Identifying and Defining Factors and Links of Interest | p. 89 |
| Formulating Research Questions and Hypotheses | p. 90 |
| Techniques for Refining Research Questions and Hypotheses | p. 96 |
| Focusing the Set of Research Questions and Hypotheses | p. 101 |
| Developing Research Plan for DS-I | p. 102 |
| Selection of Methods | p. 102 |
| Selection of Data-collection Methods | p. 103 |
| Detailing the Research Plan | p. 109 |
| Pilot Study | p. 114 |
| Undertaking an Empirical Study | p. 114 |
| Collecting Data | p. 115 |
| Processing Data | p. 116 |
| Analysing and Interpreting Data | p. 121 |
| Verifying Results | p. 124 |
| Drawing Conclusions | p. 128 |
| Updating the Initial Reference Model | p. 129 |
| Determining Further Empirical Studies | p. 130 |
| Drawing Overall Conclusions | p. 131 |
| Combining Results of Empirical Studies | p. 131 |
| Completing the Reference Model and Updating the Initial Impact Model | p. 132 |
| Documenting Research | p. 135 |
| Consequences and Suggestions for the Intended Support | p. 136 |
| Determining Next Stage | p. 136 |
| Determining Future Work | p. 136 |
| Main Points | p. 137 |
| Prescriptive Study: Developing Design Support | p. 141 |
| Types of Design Support | p. 142 |
| Types of PS | p. 143 |
| A Systematic PS Process | p. 144 |
| Task Clarification | p. 148 |
| Conceptualisation | p. 153 |
| Determining Main Functions | p. 153 |
| Generating and Selecting Support Concepts | p. 155 |
| Introduction Plan | p. 159 |
| Elaboration | p. 164 |
| Realisation | p. 167 |
| Core Contributions, Support Functionalities and Outline Evaluation Plan | p. 167 |
| Developing Actual Support | p. 169 |
| Actual Introduction Plan and Actual Impact Model | p. 171 |
| Tool Development | p. 173 |
| Support Evaluation | p. 176 |
| Main Points | p. 178 |
| Descritptive Study II: Evaluating Design Support | p. 181 |
| Evaluation | p. 182 |
| Importance of Evaluation | p. 182 |
| Types of Evaluation in DRM | p. 184 |
| Synthesis Example | p. 186 |
| DS-I Versus DS-II | p. 189 |
| Existing Evaluation Approaches | p. 190 |
| Types of DS-II | p. 195 |
| Initial DS-II | p. 195 |
| Comprehensive DS-II | p. 195 |
| Systematic DS-II Process | p. 196 |
| Reviewing Existing Documentation | p. 197 |
| Determining Evaluation Focus | p. 199 |
| Aspects to be Considered | p. 199 |
| Determine Focus | p. 201 |
| Developing Evaluation Plan(s) | p. 201 |
| Develop Measurements | p. 202 |
| Evaluation Plan | p. 204 |
| Pilot Study | p. 209 |
| Undertaking Evaluation | p. 209 |
| Drawing Overall Conclusions | p. 211 |
| Main Points | p. 212 |
| Writing Up: Publishing Results | p. 215 |
| Various Forms of Publication and Their Intent | p. 216 |
| Overall Structure of a Thesis | p. 217 |
| Approaches to Help Structure a Thesis | p. 219 |
| Table of Content Approach | p. 219 |
| Presentation Approach | p. 219 |
| Methodical Design Approach | p. 220 |
| Question and Answer Approach | p. 220 |
| Tips on Writing Specific Sections | p. 221 |
| Writing the Table of Contents and Other Lists | p. 221 |
| Writing the Introduction | p. 221 |
| Writing the Literature Review | p. 222 |
| Writing the Research Approach | p. 224 |
| Writing the Outcomes | p. 224 |
| Writing the Conclusions and Acknowledgements | p. 225 |
| Writing the Reference List and Bibliography | p. 226 |
| Writing Papers | p. 227 |
| General Guidelines | p. 227 |
| About Content | p. 227 |
| About Form | p. 228 |
| Main Points | p. 229 |
| Summary and Conclusions | p. 231 |
| Experience of Using DRM | p. 231 |
| Feedback from the Summer School on Engineering Design Research | p. 233 |
| Feedback from the Design Research Methodology Course | p. 235 |
| Other Sources | p. 236 |
| Further Research | p. 237 |
| Descriptive Study Methods | p. 239 |
| Paradigms and Assumptions | p. 239 |
| Paradigms | p. 240 |
| Assumptions | p. 242 |
| Reviewing Empirical Studies | p. 243 |
| Aim, Research Questions, Hypotheses | p. 245 |
| Nature of the Study | p. 245 |
| Theoretical Basis | p. 245 |
| Unit of Analysis | p. 246 |
| Data-collection Method | p. 246 |
| Role of Researcher | p. 247 |
| Time Constraint | p. 248 |
| Continuation | p. 248 |
| Duration | p. 248 |
| Observed Process | p. 248 |
| Setting | p. 249 |
| Task | p. 249 |
| Number of Cases | p. 250 |
| Case Size | p. 250 |
| Participants | p. 251 |
| Object | p. 251 |
| Coding and Analysis Method(s) | p. 251 |
| Verification Method(s) | p. 251 |
| Findings | p. 252 |
| Notes | p. 252 |
| Example | p. 252 |
| Laboratory Versus Industrial Environment | p. 254 |
| Data-collection Methods | p. 254 |
| Observation | p. 257 |
| Simultaneous Verbalisation | p. 262 |
| Experiments, Quasi-experiments and Non-experiments | p. 264 |
| Case Study | p. 268 |
| Collecting Documents | p. 269 |
| Collecting Products | p. 269 |
| Questionnaires | p. 269 |
| Interviewing | p. 271 |
| Action Research | p. 273 |
| Statistical Analysis | p. 273 |
| Prescriptive Study Methods | p. 277 |
| Product Development Methodologies | p. 277 |
| Methods for Analysing Objectives and Establishing Requirements | p. 278 |
| Methods for Synthesising Support Proposals | p. 279 |
| Methods for Simulating Support Behaviour | p. 280 |
| Methods for Evaluating and Selecting Support Proposals | p. 281 |
| Software Development Approaches | p. 282 |
| A Design Support Software Development Methodology | p. 282 |
| Software Development Paradigms | p. 283 |
| Generic Software Development Methodologies | p. 285 |
| The Waterfall Model | p. 286 |
| Generic Technologies | p. 290 |
| CASE Tools | p. 294 |
| User-interface Design | p. 295 |
| User-interface Development Issues | p. 295 |
| Levels of Abstraction | p. 297 |
| User-interface Development Processes and Methods | p. 297 |
| Interactive Software Development Environments | p. 300 |
| User-interface Evaluation | p. 300 |
| Support Outline: Summarising Scope and Assumptions | p. 301 |
| Example Research Projects | p. 305 |
| Overview of the Examples | p. 305 |
| A Process-based Approach to Computer-supported Engineering Design | p. 307 |
| Introduction and Aim of Research | p. 307 |
| Research Approach | p. 308 |
| Results | p. 311 |
| Evaluation of the Results | p. 314 |
| Conclusions About the Research Approach | p. 316 |
| Continuation | p. 316 |
| References | p. 316 |
| Reflections from the DRM Perspective | p. 316 |
| A Program for Computational Synthesis and Conceptual Design Support | p. 318 |
| Introduction and Aim of Research | p. 318 |
| Research Approach | p. 319 |
| Results | p. 322 |
| Evaluation of Results | p. 324 |
| Conclusions About the Research Approach | p. 325 |
| Continuation | p. 325 |
| References | p. 326 |
| Reflections from the DRM Perspective | p. 326 |
| Teamwork in Engineering Design | p. 328 |
| Introduction and Aim of Research | p. 328 |
| Research Approach | p. 329 |
| Results | p. 334 |
| Evaluation of Results | p. 336 |
| Conclusions About the Research Approach | p. 336 |
| Continuation | p. 337 |
| References | p. 337 |
| Reflections from the DRM Perspective | p. 338 |
| Measuring Conceptual Design Process Performance in Mechanical Engineering: A Question-based Approach | p. 339 |
| Introduction and Aim of Research | p. 339 |
| Research Approach | p. 340 |
| Results and Evaluation of Results | p. 344 |
| Conclusions About the Research Approach | p. 348 |
| Continuation | p. 349 |
| References | p. 349 |
| Reflections from the DRM Perspective | p. 350 |
| Design for Quality | p. 351 |
| Introduction and Aim of Research | p. 351 |
| Research Approach | p. 353 |
| Results | p. 355 |
| Evaluation of Results | p. 358 |
| Conclusions About the Research Approach | p. 359 |
| Continuation | p. 359 |
| References | p. 359 |
| Reflections from the DRM Perspective | p. 360 |
| Multi-disciplinary Design Problems | p. 361 |
| Introduction and Aims of the Research | p. 361 |
| Research Approach | p. 363 |
| Results and their Evaluation | p. 366 |
| Conclusions About the Research Approach | p. 368 |
| Continuation of Project | p. 368 |
| References | p. 369 |
| Reflections from the DRM Perspective | p. 370 |
| Design for Reliability in Mechanical System | p. 371 |
| Introduction and Aim of Research | p. 371 |
| Research Approach | p. 372 |
| Results | p. 376 |
| Evaluation of the Results | p. 378 |
| Conclusions About the Research Approach | p. 379 |
| Continuation | p. 380 |
| References | p. 380 |
| Reflections from the DRM Perspective | p. 380 |
| References | p. 383 |
| Index | p. 393 |
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