TxQoS: A Contractual Approach for Transaction Management

In this paper we model and analyze a business case from a dual view of process and service perspectives. We discover that a common understanding on transactional reliability is missing between the parties collaborating in this case. Therefore, we propose to enclose a transactional quality of service (TxQoS) specification in a service level agreement (SLA) to infuse transactional semantics into e- contracts for contract-driven service-oriented processes. A contract structure and a TxQoS framework are developed toward the unambiguous interpretation and understanding of transactional qualities between the business and technical communities as well as between the contracting parties. Thus, reliability is guaranteed both technically, via transaction management, and legally via contracts.