UML Specifications provides some guides for the description of performance requirements, but these requirements are represented with natural language constraints. This paper introduces UML extensions for the representation of temporal requirements and resource usage and their automatic evaluation. They are defined using standard UML extension techniques. These standard extensions introduce a set of formal constraints, tagged values and stereotypes, which allow the representation of general latency and capacity quality of service requirements. We have included these extensions in a commercial UML CASE tool that provides scheduling analysis services and results. We use scheduling analysis and simulation techniques in the evaluation.
This paper presents an adaptive notification framework which allows to optimally deliver and handle multimedia requests and alerts in a nursing home. This framework is operated with various applications (e.g., health alert, medicine reminder, and activity proposition) and has been evaluated with different real end-users (elderly resident and medical staff) in a pilot site. Results of these evaluations are presented and highlight the added value of the framework technology to enhance the quality of life of elderly people as well as the efficiency of the medical staff.
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