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Approach for negotiation and renegotiation of e-contracts for web services

Author(s):
Daniel Avila Vecchiato
Total Authors: 1
Document type: Master's Dissertation
Press: Campinas, SP. , ilustrações.
Institution: Universidade Estadual de Campinas (UNICAMP). Instituto de Computação
Defense date:
Examining board members:
Maria Beatriz Felgar de Toledo; João Porto de Albuquerque Pereira; Islene Calciolari Garcia
Advisor: Maria Beatriz Felgar de Toledo
Field of knowledge: Physical Sciences and Mathematics - Computer Science
Indexed in: Biblioteca Digital da UNICAMP
Location: Universidade Estadual de Campinas. Biblioteca Central Cesar Lattes; T/UNICAMP; V491a; Universidade Estadual de Campinas. Biblioteca do Instituto de Matemática, Estatística e Computação Científica; T/UNICAMP; V491a
Abstract

Electronic contracts (e-contracts) usually describe inter-organizational business processes defining electronic services (e-services) to be provided and consumed as well as parties restrictions, obligations and rights. Due to market dynamism, it is common that organizations involved in a cooperation need to do some adjustments in a pre-established e-contract. These changes should be permitted through renegotiation of contractua lclauses after the contract is already signed and enacted. This project is included in a research line that aims to support the automated establishment of e-contracts for web services based on feature models that are used to represent the e-services, quality of service (QoS) levels and control operations. This thesis aims to extend an e-contract meta-model, inserting control operations to be executed in case of its clauses are not met, could leading to a process terminate, a contract renegotiation or a fine application. The toolkit FeatureContract is used as a basis for implementing renegotiation actions, so the contract can be updated after agreed and enacted. The objective is to identify possible actions to be taken in case of contract violation and to develop a computational tool to the renegotiation process suport. The proposed extensions uses the WS-Agreement language to specify the control operations. An application example is also exploited to show the feasibility of the proposed approach (AU)

FAPESP's process: 09/06470-3 - An approach for negotiation and renegotiation of electronic contracts for Web services
Grantee:Daniel Avila Vecchiato
Support Opportunities: Scholarships in Brazil - Master