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PROGETTI PRECEDENTI
- Automating FMECA for aircraft systems (AUTAS)
- Customer-Adaptive Web Interface for the Configuration of Products and Services (CAWICOMS)
- Digital TV: Ontologies and semantic proximity
- FOndazioni Logiche di LInguaggi Astratti di Programmazione (FOLLIA) --- PRIN2004
- I fondamenti cognitivi per la creazione del diritto [Cognitive basis in law] (PRIN05)
- INteractive TouRist Information GUidE (INTRIGUE)
- Knowledge-oriented technologies for enterprise aggregation in Internet (TOCAI.IT)
- Legal Taxonomy Syllabus
- Personalized Television Services
- Protecting Web Resources from Massive Automated Access
- Smart Tourist Agenda Recommender (STAR)
- Specifica e verifica di protocolli di interazione fra agenti
- User Adaptive Web-based Systems (SeTA )
- Wide-scalE, Broadband, Middleware for Network Distributed Services (WEB MINDS)
- SmartLab
- Diagnosis of complex Web Services (WS-DIAMOND)
- PeeR-to-peer beyOnd FILE Sharing (PROFILES)
- Critical UTility InfrastructurAL resilience (CRUTIAL )
- Performability-Aware Computing: Logics, Models, and Languages (PaCo)
- Intelligent Support to Retrieving Hydric Resources Data (Acqua)
- Recommendation and Discovery for Personal Video Recorder (RD-PVR)
- BioBITs: Developing white and green biotechnologies by converging platforms from biology and information technology towards metagenomics
- myMed
- Formal Verification of Object-Oriented Software (COST Action IC0701)
- DISCO (Distribution, Interaction, Specification, Composition for Object Systems)
- IPODS
- LCaTfOOPC: Language constructs and type systems for object oriented program components
- MeCTAFI: Constructive Methods in Topology, Algebra and Foundations of Computer Science
Ricerca: dettaglio
Diagnosis of complex Web Services (WS-DIAMOND)
Membri: Attivit?Currently, fault management in Web Services orchestrating multiple suppliers relies on a local analysis, that does not span across individual services, thus limiting the effectiveness of recovery strategies.
We aim at extending Web Service composition with support for the specification, management, monitoring and recovery of complex workflows including the execution of internal activities and the invocation of external services. To this purpose, we propose a framework for Web Service composition where a Diagnoser Web Service is added to the set of composed Web Services and acts as a supervisor of the execution of the underlying workflow. The Diagnoser must identify anomalies in the execution of the composed Web Services, and explain such anomalies in terms of faults to be repaired. The identification of the problems occurring during the execution of a complex service supports a fine grained selection of the recovery strategy to be applied. The Diagnoser Web Service relies on Model-Based Diagnosis to identify the possible causes of problems.
In addition to a centralized fault analysis framework, we are investigating the possibility to carry out the diagnostic task in a distributed way within a service. When defining a complex service, we propose to add to each service a local diagnoser which relates hypotheses about incorrect outputs of the service to a misbehavior of the service itself, or to incorrect inputs from other services. A global diagnostic service is then associated with the complex service. It coordinates the local diagnosers, exchanging messages with them and, without relying on any information about the internal structure of the sub-services, it can in turn compute diagnoses at the level of the global service.
WS-Diamond Web site Involved PhD students: Roberto Furnari Aree/Progetti collegati: Appartiene a: |
Dipartimento di Informatica - C.So Svizzera, 185 - 10149 Torino
Università degli Studi di Torino - Via Verdi, 8 - 10124 Torino - Centralino +39 011 6706111
P.I. 02099550010 - C.F. 80088230018 - IBAN IT07N0306909217100000046985