CASCOM: Intelligent Service Coordination in the Semantic Web (Whitestein Series in Software Agent Technologies and Autonomic Computing)

Contents......Page 6
Preface......Page 23
Acknowledgements......Page 25
1.1 Introduction......Page 26
1.2 Background......Page 27
1.3 Motivation: CASCOM in Emergency Assistance......Page 28
1.4 Overview of the Approach......Page 30
1.5 Overall \nView of the Book......Page 31
I. State of the Art......Page 34
2.2 IP2P Enabling Technologies......Page 35
2.3 Overlay \nNetworks......Page 46
2.4 Summary......Page 49
3.2 Issues of Semantic Service Description......Page 54
3.3 SAWSDL......Page 56
3.4 OWL-S......Page 59
3.5 WSML......Page 67
3.6 Monolithic DL-Based Service Descriptions......Page 74
3.7 Critique......Page 75
3.8 Summary......Page 77
4.2 Semantic Service Discovery\n......Page 81
4.3 Semantic Service Composition Planning......Page 101
4.4 Interrelations......Page 112
5.1 Introduction......Page 127
5.2 Context Definitions......Page 129
5.3 General Design Principles and Context Modeling Approaches......Page 131
5.4 Context Dependency Architectures......Page 134
5.5 Summary\n......Page 140
6.1 Introduction......Page 146
6.2 Objectives......Page 147
6.3 Benefits of e-Health......Page 148
6.5 Mobility (m-Health)......Page 150
6.6 CASCOM in the Healthcare Domain......Page 156
6.7 Summary......Page 157
II. The CASCOM Solution......Page 161
7.1 Introduction......Page 162
7.2 Technical Approach......Page 163
7.3 Conceptual Architecture......Page 164
7.4 The CASCOM Architecture in Detail......Page 167
7.5 Instantiations of the CASCOM Architecture......Page 172
7.6 Summary......Page 177
8.1 Introduction......Page 180
8.2 Background......Page 181
8.3 Summary......Page 195
9.1 Introduction......Page 199
9.2 Service Entries......Page 200
9.4 Directory Services......Page 201
9.5 Directory Operations......Page 202
9.6 Policies......Page 204
9.7 CASCOM Service Directory Architecture......Page 205
9.8 Usability......Page 212
9.9 Vulnerability......Page 214
9.10 Related Work......Page 218
9.11 Summary......Page 220
10.2 Overview......Page 222
10.3 The CASCOM Service Discovery Agent......Page 224
10.4 The CASCOM Service Matchmaker......Page 225
10.5 Hybrid Semantic Service Matchmaker OWLS-MX......Page 231
10.6 Service Precondition and Effect Matchmaker PCEM......Page 235
10.7 Role-Based Matchmaker ROWLS......Page 243
10.8 Summary......Page 247
11.2 CASCOM Service Composition Agent SCPA......Page 251
11.3 Pre-Filtering for Service Composition......Page 253
11.4 Service Composition With OWLS-XPlan......Page 259
11.5 Service Composition With MetaComp......Page 272
11.6 Summary......Page 276
12.1 Introduction......Page 279
12.2 Composite Service Execution......Page 280
12.3 Centralized Approach for Service Execution......Page 282
12.4 Distributed Approach for Service Execution......Page 289
12.5 Summary......Page 299
13.1 Introduction......Page 304
13.2 System Requirements......Page 305
13.3 Context Representation......Page 309
13.4 Context System Architecture......Page 313
13.5 Summary......Page 320
14.1 Introduction......Page 324
14.2 Two-Party Interactions......Page 325
14.3 A Model of Mediated Interactions......Page 327
14.4 Decision Making Strategy......Page 331
14.5 Integration in the CASCOM Platform......Page 336
14.6 Summary......Page 340
III. Trials and Results......Page 343
15.1 Introduction......Page 344
15.2 Usability Trials in Helsinki......Page 346
15.3 Field Trials in Innsbruck and Basel......Page 352
15.4 Summary......Page 359
16.2 Service Matchmaker Agent......Page 361
16.3 Service Discovery Agent......Page 365
16.4 Service Composition Planner Agent......Page 366
16.5 Service Execution Agent......Page 369
16.6 WSDir......Page 370
16.7 Summary......Page 372