The quality of reusable elements must be rigorously monitored and guaranteed before they can be reused, this is known as Certification. High levels of certification of these elements generate trust and stimulate reuse. In this paper we describe the development of a tool based on quality oriented reuse strategies. To this end, we take as starting point an ontology that rigorously correlates the essential concepts of systematic reuse to quality. This ontology reinforces the proposed strategy, which in turn is supported by the tool. The methodology used is based upon the Methodological Systemic Framework for Information Systems Research. For the development of the tool, we used the iterative incremental development process Rational Unified Process (RUP.) We took into account the inception and elaboration phases, and developed an iteration of the construction phase. As a result of the development process we built a tool which supports the main activities of the proposed strategy. These activities are Certify Domain Models, Requirement Specifications, Architectural Designs and Code, through checklists, allowing to store, classify, search and recovery the reusable elements and its properties.