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Selecting the optimum component implementation variant is sometimes difficult since it depends on the component’s usage context at runtime, e.g., on the concurrency level of the application using the component, call sequences to the component, actual parameters, the hardware available etc. A conservative selection of implementation variants leads to suboptimal performance, e.g., if a component is...
Context-Aware Composition allows to automatically select optimal variants of algorithms, data-structures, and schedules at runtime using generalized dynamic Dispatch Tables. These tables grow exponentially with the number of significant context attributes. To make Context-Aware Composition scale, we suggest four alternative implementations to Dispatch Tables, all well-known in the field of machine...
For large software projects, system designers have to adhere to a significant number of functional and non-functional requirements, which makes software development a complex engineering task. If these requirements change during the development process, complexity even increases. In this paper, we suggest recommendation systems based on context-aware composition to enable a system designer to postpone...
With the emergence of service-oriented architecture (SOA), the provision of business-to-business as well as user-centric services becomes increasingly simple and fluent. Also, the design, development and deployment of services - either elementary or composite - have constantly gained ground. However, the user's context must constitute an essential aspect of such services in order to improve the end-user...
Developing software systems by assembling pre-existing software components (COTS), requires a composition and adaptation process of the component interfaces to solve both syntactical and behavioural mismatches. The use of context-aware computing is important in applications where the context changes depending on the conditions of the environment, as is the case in mobile and pervasive computing. These...
Service composition is regarded as a primary approach to build an application in service-oriented computing (SOC). Current approaches for service composition may return back lots of invalid results because they neither take user's context into account nor lack effective verification mechanism. To tackle these problems, this paper presents a framework that enables context-aware composition of Web services...
This paper describes an intelligent distributed framework that enables the dynamic composition of mobile services and applications based on existing services and technologies, while enriching them with high-level and up-to-date contextual information. The framework makes the service implementation totally platform-unaware, thus increasing the number of potentially available services and shortening...
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