System Architecture and Complexity (eBook)

PRINTZ Jacques: Emeritus Professor of Cnam - Associate Professor at the Catholic University of Lille

Foreword ix

Preface xiii

Part 1. The Foundations of Systemics 1

Introduction to Part 1 3

Chapter 1. The Legacy of Norbert Wiener and the Birth of Cybernetics 5

1.1. The birth of systemics: the facts 6

1.1.1. The idea of integration 8

1.1.2. Implementation and the first applications 14

1.2. Modeling for understanding: the computer science singularity 21

1.3. Engineering in the 21st Century 24

1.4. Education: systemics at MIT 29

Chapter 2. At the Origins of System Sciences: Communication and Control 33

2.1. A little systemic epistemology 33

2.2. Systems sciences: elements of systemic phenomenology 38

2.2.1. Control/regulation 42

2.2.2. Communication/information 45

2.3. The means of existence of technical objects 51

Chapter 3. The Definitions of Systemics: Integration and Interoperability of Systems 55

3.1. A few common definitions 55

3.2. Elements of the system 59

3.3. Interactions between the elements of the system 62

3.4. Organization of the system: layered architectures 65

3.4.1. Classification trees 65

3.4.2. Meaning and notation: properties of classification trees 74

Chapter 4. The System and its Invariants 83

4.1. Models 83

4.2. Laws of conservation 89

4.2.1. Invariance 96

4.2.2. System safety: risks 106

Chapter 5. Generations of Systems and the System in the System 113

5.1. System as a language 116

5.2. The company as an integrated system 119

5.2.1. The computer, driving force behind the information system 120

5.2.2. Digital companies 126

Part 2. A World of Systems of Systems 129

Introduction to Part 2 131

Chapter 6. The Problem of Control 133

6.1. An open world: the transition from analog to all-digital 133

6.2. The world of real time systems 142

6.3. Enterprise architectures: the digital firm 145

6.4. Systems of systems 147

Chapter 7. Dynamics of Processes 151

7.1. Processes 153

7.2. Description of processes 158

7.2.1. Generalizing to simplify 165

7.2.2. Constructing and construction pathways 166

7.2.3. Evolution of processes 168

7.2.4. Antagonistic processes: forms of invariants 170

7.3. Degenerative processes: faults, errors and "noise" 173

7.4. Composition of processes 176

7.4.1. Antagonistic interactions 178

7.5. Energetics of processes and systems 181

Chapter 8. Interoperability 191

8.1. Means of systemic growth 195

8.2. Dynamics of the growth of systems 197

8.2.1. The nature of interactions between systems 200

8.2.2. Pre-eminence of the interaction 204

8.3. Limits of the growth of systems 207

8.3.1. Limits and limitations regarding energy 211

8.3.2. Information energy 214

8.3.3. Limitations of external origin: PESTEL factors 216

8.4. Growth by cooperation 221

8.4.1. The individuation stage 223

8.4.2. The cooperation/integration stage 226

8.4.3. The opening stage 233

Chapter 9. Fundamental Properties of Systems of Systems 235

9.1. Semantic invariance: notion of a semantic map 235

9.2. Recursive organization of the semantic 239

9.3. Laws of interoperability: control of errors 240

9.3.1. Models and metamodels of exchanges 241

9.3.2. Organization "in layers" of the models and systems 243

9.3.3. Energy performance of the interaction between systems 245

9.3.4. Systemic approach to system safety 247

9.4. Genealogy of systems 252

Conclusion 257

List of Acronyms 269

References 275

Index 277