Fast and efficient context-aware services [[electronic resource] /] / Danny Raz ... [et al.]

• Record Nr.: UNINA9910830287503321
• Pubbl/distr/stampa: Chichester, England ; ; Hoboken, NJ, : Wiley, c2006
• ISBN: 1-280-44882-2; 9786610448821; 0-470-02867-X; 0-470-02868-8
• Descrizione fisica: 1 online resource (223 p.)
• Collana: Wiley series in communications networking & distributed systems
• Altri autori (Persone): RazDanny
• Disciplina: 006.3; 658.812
• Soggetti: Computer interfaces; Computer network architectures
• Lingua di pubblicazione: Inglese
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Note generali: Description based upon print version of record.
• Nota di bibliografia: Includes bibliographical references and index.
• Nota di contenuto: Fast and Efficient Context-Aware Services; Contents; Foreword; Abbreviations; 1. Introduction; 1.1. Context-Aware Services; 1.2. The Context Project; 1.3. Structure of the Book; 1.4. Acknowledgements; 2. Context Awareness and Modeling: Background; 2.1. Some Context Definitions; 2.2. Context-Aware Service; 2.3. Context-Awareness System Research; 2.3.1. Context-Aware Ubiquitous Computing Applications; 2.3.2. Context-Aware Frameworks; 2.3.3. Context-Aware Application Life Cycle; 2.3.4. Context in GRID Computing; 2.3.5. Context-Aware Sensors' Computing; 2.3.6. Context-Aware Ontologies; 2.3.7. Context in Mobile Systems and Devices2.3.8. Context Aware Communications; 2.3.9. Context-Aware Flows; References; 3. The Service Life Cycle Functional Architecture; 3.1. Introduction; 3.2. Service Life Cycle Model for Context-Aware Services; 3.3. Service Creation; 3.3.1. CAS Authoring; 3.3.2. Service Customization; 3.3.3. Code and Policies Generation Engine; 3.4. Service Management; 3.4.1. Code Distributor; 3.4.2. Code Execution Controller; 3.4.3. Invocation Service Listener; 3.4.4. Service Assurance; 3.5. Conclusions; References; 4. Context-Aware Services and the Network Layer; 4.1. Network Layer Requirements for Context-Aware Services4.2. Current State of Service-Aware Networks and Open Network Interfaces; 4.3. Requirements for Network Context InformationCollection and Dissemination; 4.3.1. Access to Local Network Level Information; 4.3.2. Gathering and Disseminating Global Network Information; 4.4. Requirements for Network Level Control; 4.5. Security Considerations; 4.5.1. Implementation Aspects; 4.6. Conclusions; References; 5. Baseline Technology Review; 5.1. Introduction; 5.2. Open Signaling Approach; 5.3. IFTF ForCES Approach; 5.4. DARPA Active Networks Approach5.5. Programmable Networks Components; 5.5.1. Node OS: Node Operating Systems; 5.5.2. EE: Execution Environments; 5.5.3. Programmable Management Services; References; 6. CAS Creation and Management - System Architecture and Design Considerations; 6.1. Introduction; 6.2. Service Layer Overview; 6.2.1. Policy Management Components; 6.2.2. Service Execution Components; 6.2.3. Interfaces Between Service Layer Components; 6.3. Service Layer Implementation Considerations; 6.3.1. Why Policies?; 6.3.2. Objectives of the Policy-Based Service Management System; 6.4. Context Policy-Based Service Management System6.4.1. On System Components; 6.4.2. Domain-Specific Policies; 6.4.3. Service Assurance; References; 7. The Service Execution Environment and Context Delivery; 7.1. A Bird's-Eye View; 7.2. The Active Platform; 7.2.1. The Session Broker; 7.2.2. Execution Environment; 7.2.3. Management of Active Nodes; 7.2.4. DINA Active Packets; 7.2.5. Security; 7.2.6. The IP-Related Brokers; 7.2.7. VoIP Support: the SIP Broker; 7.2.8. Wireless Support: The WLAN Broker; 7.3. Context Delivery System; 7.3.1. Functional Overview; 7.3.2. Functional Decomposition; 7.3.3. Context Broker Interfaces
• Sommario/riassunto: Fast and Efficient Context-Aware Services gives a thorough explanation of the state-of-the-art in Context-Aware-Services (CAS). The authors describe all major terms and components of CAS, defining context and discussing the requirements of context-aware applications and their use in 3rd generation services. The text covers the service creation problem as well as the network technology alternatives to support these services and discusses active and programmable networks in detail. It gives an insight into the practical approach followed in the CONTEXT project, supplying concrete guidelines for