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Modern software systems often run on a changing and unpredictable environment, they need to adapt itself at runtime in response to changing requirements of users and running environment. Therefore, numerous methods have been proposed to support the development of self-adaptive system. Some approaches are requirements-based. Other approaches are architecture-based. By considering only a partial view...
Cloud computing and service computing can be integrated into a distributed computing platform which provides a set of services to their users. Different services could cooperate with each other to accomplish more intricate tasks. However, third-party cloud services may cause failures or quality violation of workflow applications. Especially in some critical business scenarios, service performance...
After reviewing the state of the security technology research and access control in the Web services environment, this paper presents a dynamic role-based access control (UE-DRBAC) model through user life cycle events and a secure architecture model for Web services. A reasonable access control is used to achieve the dynamic authorization by analyzing the relationship among roles based on user life...
Service enterprise workflow simulation is an important approach to analyze service enterprise business processes dynamically. Traditionally, service workflow simulation is based on the discrete event queuing theory, which lacks flexibility and scalability. To address this problem, this paper proposes a service workflow simulation framework based on multi-agent cooperation. Social rationality of software...
Ontology is considered as one of the most important roles in knowledge sharing and reusing. However, how to effectively construct the enterprise process domain ontology is a difficult problem. This paper proposes a new business process ontology construction approach using Process Specification Language (PSL) based on the EPMS1 and Computer Integrated Manufacturing Open System Architecture (CIMOSA)...
Ontology is considered as one of the most important roles in knowledge sharing and reusing. However, how to effectively construct the enterprise process simulation domain ontology is a difficult problem. This paper proposed a pattern-layer Enterprise process ontology construction approach based on the EPMS and simple characteristic of CIM-OSA patterns in process simulation. The first step of this...
Distributed defense of distributed denial of service (DDoS) is one of the main research areas in DDoS recently. It is preferred to be conducted as the control-based defense. However, some existed methods have their respective disadvantages, such as efficiency, privacy. Therefore, a DDoS-oriented distributed defense framework based on the edge router feedbacks in autonomous systems (AS) is proposed...
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