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In service oriented architecture, each application is often designed with a set of reusable services and a business process. In order to retain the reusability of services, it is important to separate non-functional properties of applications (e.g., security and reliability) from their functional properties. Currently, non-functional properties are often defined on a per-service basis. In contrast,...
In service oriented architecture, each application is often designed as a set of abstract services, which defines its functions. A concrete service(s) is selected at runtime for each abstract service to fulfill its function. Since different concrete services may operate at different quality of service measures, application developers are required to select an appropriate set of concrete services that...
It is important in service oriented architecture (SOA) to separate functional and non-functional requirements for services because different applications use services in different non-functional contexts. In order to maximize the reusability of services, a set of constraints (e.g., dependency and mutual exclusion constraints) among non-functional requirements tend to be complicated to maintain. Currently,...
Service oriented architecture (SOA) is an architectural style to reuse and integrate subsystems in existing systems for designing new applications. Each application is designed in an implementation independent manner using abstract concepts: network services and connections between network services. In SOA, the non-functional aspects of services and connections should be described separately from...
Service oriented architecture (SOA) is an architectural style to reuse and integrate existing systems for designing new applications. Each application is designed in an implementation independent manner using two major abstract concepts: services and connections between services. In SOA, the non-functional aspects (e.g., security and fault tolerance) of services and connections should be described...
This paper describes a biologically-inspired architecture, called SymbioticSphere, which allows data centers to autonomously adapt to dynamic environmental changes and survive partial system failures. SymbioticSphere follows certain biological principles such as decentralization, natural selection, emergence and symbiosis to design data centers (application services and middleware platforms). Each...
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