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Towards agent-oriented model-driven architecture

EUROPEAN JOURNAL OF INFORMATION SYSTEMS 2007年第4期16卷 390-406页

作者： Xiao, Liang Greer, Des Univ Southampton Sch Electr & Comp Sci Southampton SO17 1BJ Hants England Queens Univ Belfast Sch Electr Elect Engn & Comp Sci Belfast Antrim North Ireland

model-driven architecture (MDA) supports the transformation from reusable models to executable software. Business representations, however, cannot be fully and explicitly represented in such models for direct transformation into running systems. Thus, once business needs change, the language abstractions used by MDA (e.g. object constraint language/action semantics), being low level, have to be edited directly. We therefore describe an agent-oriented MDA (AMDA) that uses a set of business models under continuous maintenance by business people, reflecting the current business needs and being associated with adaptive agents that interpret the captured knowledge to behave dynamically. Three contributions of the AMDA approach are identified: (1) to agent-oriented Software Engineering, a method of building adaptive Multi-agent Systems;(2) to MDA, a means of abstracting high-level business-oriented models to align executable systems with their requirements at runtime;(3) to distributed systems, the interoperability of disparate components and services via the agent abstraction.

关键词： adaptive agent model agent-oriented model-driven architecture business knowledge model model-driven architecture multi-agent system software adaptivity

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An adaptive security model using agent-oriented MDA

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INFORMATION AND SOFTWARE TECHNOLOGY 2009年第5期51卷 933-955页

作者： Xiao, Liang Univ Southampton Sch Elect & Comp Sci Southampton SO17 1BJ Hants England

model-driven architecture (MDA) supports model-centred software development via successive model transformation. In MDA, the reusability of models is improved as well as the traceability of requirements. agent-oriented model-driven architecture (AMDA) associates adaptive agents with a business-oriented interaction model and lets agents dynamically interpret their behaviour from the continuously maintained model via which the current business needs are deployed at runtime. The continuous re-interpretation rather than discrete re-transformation of models means immediate requirements deployment after re-configuration, no system down time being required to affect changes and results in a development process that is oriented to business experts rather than developers. Adopting the adaptive agent model, an AMDA paradigm, we put forward a security-aware model-driven mechanism by using an extension of the role-based access control (RBAC) model. For this purpose, the concept or agent role proposed in agent-oriented software engineering (AOSE) is integrated with the one proposed in RBAC. agent duties are specified in an interaction model and describe the roles that agents can play to fulfil their functional responsibilities. agent rights are specified in a security policy rule model attached to the interaction model and describe constraints upon agent capabilities caused by their associated social roles. The role based interaction and policy-driven model incorporates both agent rights and duties. Hence, functional requirements and non-functional security constraint requirements are put together, related by the concept of role. Consequently, agents can continuously use the re-configurable model to play their roles in order to fulfil their responsibilities, and at the same time respect the security constraints. The major contribution from the approach is a method for building adaptive and secure MAS, following model-driven architecture. The approach is illustrated with an actua

关键词： Adaptive security model agent-oriented model-driven architecture agent-oriented software engineering Role-based access control Adaptive and secure multi-agent systems

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