Suportando Contratos de QoS no Nível Arquitetural

S. AnsaloniA. SztajnbergR. CerqueiraO. G. Loques

This paper presents an approach to describe, deploy and manage component-based applications having dynamic functional and non-functional requirements, which include different types of QoS. The approach is centered on architectural descriptions and associated high-level QoS contracts. These contracts are used to guide configuration adaptations required to enforce QoS requirements. The infrastructure required to manage the contracts follows an architectural pattern, which can be directly mapped to specific components included in a supporting reflective middleware. This allows designers to write a contract and to follow standard recipes to insert the extra code required to its enforcement in the supporting middleware.

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