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software composition of Different Security Level Components

Computer Technology and Application 2011年第11期2卷 835-842页

作者： Frank Tsui Edward Jung Sheryl Duggins software Engineering Southern Polytechnic State University Marietta Georgia 30060 USA Computer Science Southern Polytechnic State University Marietta Georgia 30060 USA

In this paper the authors show how software component design can affect security properties through different composition operators. The authors define software composition as the result of aggregating and/or associating a component to a software system. The component itself may be informational or functional and carry a certain level of security attribute. The authors first show that the security attributes or properties form a lattice structure when combined with the appropriate least upper bound and greatest lower bound type of operators. Three composition operators, named C l, C2 and C3 are developed. The system＇s security properties resulting from these compositions are then studied. The authors discuss how different composition operators maintain, relax and restrict the security properties. Finally, the authors show that C1 and C2 composition operators are order-sensitive and that C3 is order-insensitive.

关键词： software composition security component-design.

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Support for Dynamic Service composition with Role-Based Interaction Model

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Journal of Shanghai Jiaotong university(Science) 2006年第1期11卷 56-59页

作者：贺小箭尤晋元唐新怀贾兆庆 Dept.of Computer Science and Eng. Shanghai Jiaotong Univ.Shanghai 200030 China

This paper aims to present a role-based interaction model for dynamic service composition in Grid environments. Assigning roles to a service means to associate with it capabilities that describes all the operations the service intends to perform. When all of the services can be recognized by their roles, the appropriate services can be selected. Based on the interaction policy, a role-based interaction model not only facilitates access control, but also offers flexible interaction mechanism for adapting service-oriented applications. This interaction model adopts programmable reactive tuple space to facilitate context-dependent coordination.

关键词： coordination role service oriented computing software composition

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Intermediate Common Model—The Solution to Separate Concerns and Responsiveness in Dynamic Context-Aware System

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Journal of Computer and Communications 2017年第4期5卷 44-59页

作者： Gaetan Rey The Can Do Jean-Yves Tigli Stéphane Lavirotte Nhan Le Thanh Universite Cote d'Azur NiceFrance

Nowadays, many works are interested in adapting to the context without taking into account neither the responsiveness to adapt their solution, nor the ability of designers to model all the relevant concerns. Our paper provides a new architecture for context management that tries to solve both problems. This approach is also based on the analysis and synthesis of context-aware frameworks proposed in literature. Our solution is focus on a separation of contextual concerns at the design phase and preserves it as much as possible at runtime. For this, we introduce the notion of independent views that allow designers to focus on their domain of expertise. At runtime, the architecture is splitted in 2 independent levels of adaptation. The highest is in charge of current context identification and manages each view independently. The lowest handles the adaptation of the application according to the rules granted by the previous level.

关键词： Middleware Ubiquitous Computing Context-Aware System software composition software Architecture

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