this decision activity is based on treating non-functional properties and requirements uniformly, and still supporting specific evaluation and analysis.

Many architecture description languages (ADLs) were proposed for describing structure of software systems in terms of components and connectors. However, specification of non-functional properties is not addressed well in these ADLs, although it is crucial for building quality software

Abstract — Providing powerful and fine-grained capabilities for the analysis and management of non-functional properties is a major challenge for component-based software systems. This article presents an approach that relies on some integration patterns of non-functional properties in hierarchical

to match the business and technical life cycles. Then it demonstrates that lots of the nice features of software components are allowed thanks to the concept of container. The container is an entity visible as much during software component development as during its execution. Some of its properties must

of its properties must be taken into account in software architectures and design models.

Abstract- Mobile ad hoc networks are the ones which allow mobile nodes to spontaneously form a network and share their services. The dynamic environment of MANETs demands service selection should not only based on functional properties but also be driven by non-functional requirements

language for every new domain. To make their development efficient, we must be able to construct DSLs as much as possible from reusable building blocks. In this paper, we discuss how such building blocks can be constructed for the specification and analysis of a range of non-functional properties, such as

of the most relevant service for composition based on non-functional properties and the user’s context. In doing this we also propose a method of obtaining and evaluating non-functional aspects. 1

changing requirements comes the demands for better quality and performance. For software system to achieve its goal, there is need for a technique which will allow it to change while improving its performance. This paper surveys some techniques for evolving non-functional properties of software

. The mobile agent technology is emerging as a useful new way of building large distributed systems. The advantages of mobile agents over the traditional client-server model are mainly non-functional. We believe that one of the reasons preventing the wide-spread use of mobile agents is that non-functional