The analysis of non-functional requirements (NFR) is a challenge and has been explored in the literature. This initiative is due to the fact of the existence of the problem of analysis the use of the NFRs operationalization in software. In this thesis we present a method, with supporting tools and techniques, that checks, if a software complies with standards of non-functional requirements as described in a catalog, as an alternative to the NFR analysis problem. The strategy adopted in this thesis uses autonomous agents to check software compliance regarding the operationalization of an NFR, by using a knowledge base of patterns persisted in a catalog. Initial results show that the proposed solution is applicable. The evaluation of the validity is given by the demonstration that a partially automated method is effective in identifying compliance. This work differs form others by linking NFRs to their effective implementation. A method based on patterns NFRs was used in common software, as to show the application of the proposed strategy. An agent based framework, working with XML descriptions, for checking software compliance with respect to a NFR catalog was built.