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Cloud computing technologies are changing the way in which services are deployed and operated nowadays, introducing advantages such as a great degree of flexibility (e.g. pay-peruse models, automatic scalability, etc.). However, existing offerings (Amazon EC2, GoGrid, etc.) are based on proprietary service definition mechanisms, thus introducing vendor(More)
Aspect-Oriented requirements engineering helps to achieve early separation of concerns by supporting systematic analysis of broadly-scoped properties such as security, real-time constraints, etc. The early identification and separation of aspects and base abstractions crosscut by them helps to avoid costly refactorings at later stages such as design and(More)
Software product line engineering has emerged as an approach to developing software which targets a given domain. However, the processes involved in developing a software product line can be time consuming and error prone without adequate lifecycle tool support. In this paper we describe our approach, NAPLES, which uses natural language processing and(More)
Most current aspect composition mechanisms rely on syntactic references to the base modules or wildcard mechanisms quantifying over such syntactic references in pointcut expressions. This leads to the well-known problem of pointcut fragility. Semantics-based composition mechanisms aim to alleviate such fragility by focusing on the meaning and intention of(More)
Agile software processes emerged to address the issue of building software on time and within the planned budget. To adopt an agile process, it is imperative to analyze and evaluate its effectiveness in supporting high quality software development while complying with stringent time constraints. In this paper we describe an agile method for Web-based(More)