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Self-healing Web service composition with HTN planners
Dissertation (MSc)--University of Pretoria, 2009.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613530775093250 |
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| access_status_str | Open Access |
| author2 | Bishop, Judith |
| author_browse | Bishop, Judith |
| author_facet | Bishop, Judith |
| collection | Thesis |
| dc_rights_str_mv | ©University of Pretoria 2008 E1193/ |
| description | Dissertation (MSc)--University of Pretoria, 2009. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/24493 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:37:37.270Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/24493 Self-healing Web service composition with HTN planners Bishop, Judith Grant, T.J. ksmchan@cs.up.ac.za Chan, Ka Sim May Execution monitor Analyser Web service composition Planning Fault taxonomy Htn Self-healing Replanning Verification Sensemaking UCTD Dissertation (MSc)--University of Pretoria, 2009. Web services have become a prominent paradigm for building of both inter and intra-enterprise business processes. These processes are composed from existing Web services based on defined requirements. Standards and techniques have been developed to aid in the dynamic composition of services. However, these approaches are limited when it comes to the handling of unexpected events. This dissertation presents the results of experiments that investigated numerous problems related to Web service composition processes. Based on the investigation, a fault taxonomy was formulated. Faults were grouped into three broad categories, each representing a distinct problem stage. The investigation into faults gave rise to the issue of fault recovery and continued process execution. A list of requirements for self-healing Web service composition was identified, while a new self-healing cycle was exploited based on the MAPE cycle (Monitor, Analyzer, Planner, Executive). The proposed self-healing composition cycle consists of three modules: Plan Generation Module, Plan Execution Module and Failure Analysis Module. The plan execution module, consisting of the execution and run-time monitoring phases, and the failure analysis module, consisting of the analysis and sensemaking phases, were found to be vital to self-healing Web service composition. Self healing Web service composition and the goal of self-healing were achieved through the use of Hierarchical Task Network (HTN) planning systems. Computer Science unrestricted 2013-09-06T17:42:36Z 2009-04-09 2013-09-06T17:42:36Z 2008-09-02 2009-04-09 2009-01-22 Dissertation 2008 E1193/gm http://hdl.handle.net/2263/24493 http://upetd.up.ac.za/thesis/available/etd-01222009-165430/ ©University of Pretoria 2008 E1193/ application/pdf University of Pretoria |
| spellingShingle | Execution monitor Analyser Web service composition Planning Fault taxonomy Htn Self-healing Replanning Verification Sensemaking UCTD Self-healing Web service composition with HTN planners |
| title | Self-healing Web service composition with HTN planners |
| title_full | Self-healing Web service composition with HTN planners |
| title_fullStr | Self-healing Web service composition with HTN planners |
| title_full_unstemmed | Self-healing Web service composition with HTN planners |
| title_short | Self-healing Web service composition with HTN planners |
| title_sort | self healing web service composition with htn planners |
| topic | Execution monitor Analyser Web service composition Planning Fault taxonomy Htn Self-healing Replanning Verification Sensemaking UCTD |
| url | http://hdl.handle.net/2263/24493 http://upetd.up.ac.za/thesis/available/etd-01222009-165430/ |