The requirements management is essential to achieve acceptable levels of productivity and quality in software development. This paper proposes the context of this process under a Secretary of State of the Brasilia government proposing a standard methodology of Requirements Management, adapted to the needs of the Secretariat, for improvement in productivity and quality. For both studied the traditional method of software-development, with emphasis on the Rational Unified Process (RUP) and agile, with the Scaled Agile Framework process (SAFe), to propose a hybrid method of requirements management. Interviews, technical applications to establish the context, literature searches on documents, standards and best practices were held.