This thesis presents a preliminary goal oriented modeling of situation awareness in a command and control system. Tropos, an agent oriented software development methodology, has been used for modeling. Use of Tropos allows us to represent, at the knowledge level, the Command and Control actors along with their goals and interdependencies. Through refinement we aim to derive an architectural design for the Situation Awareness component of an Air Defense Command and Control system. This work suggests that goal oriented methodologies can be successfully used in the modeling of the complex systems at the requirement analysis phase. By analyzing dependencies between Command and Control entities, it should be possible to improve the modularity of the Command and Control system architecture.

[pt] Consciência de software (software awareness) tornou-se um requisito importante na construção de sistemas com capacidade de autoadaptação. Para que aplicações de software possam melhor se adaptar a mudanças nos diversos ambientes em que operam, ter consciência (no sentido de perceber e entender esses ambientes e a seu próprio funcionamento nestes ambientes) é fundamental. Entretanto, mesmo em um nível básico aplicado a software, consciência é um requisito difícil de definir. Nosso trabalho propõe a organização de um catálogo para o requisito de consciência de software, com mecanismos para instanciação e uso do conhecimento armazenado neste catálogo na modelagem e implementação de software para problemas onde a autoadaptação, e por consequência consciência, sejam requisitos chave. / [en] Software awareness has become an important requirement in the construction of self-adaptive systems. As such, the software should better adapt to changes in the various environments in which they operate, be aware of (in the sense of perceiving and understanding) these environment and be aware of its own operation in these environments. However, even at a basic level applied to software, awareness is a requirement difficult to define. Our work proposes the creation of a catalog to the awareness requirement through non-functional requirements patterns (NFR patterns). We also propose mechanisms for enabling the instantiation and use of the knowledge about awareness, represented in this catalog.