A considerable part of the development effort of systems nowadays is related to the design and implementation tasks of the software components of the system. The main motivation for this work is the expected benefits from a successful implementation of systematic software reuse by the organization, as described in IEEE 1517 - 2010: Increase software productivity; Shorten software development and maintenance time; Reduce duplication of effort; Move personnel, tools, and methods more easily among projects; Reduce software development and maintenance costs; Produce higher quality software products. This work will focus attention on what is needed for an organization to establish systematic software reuse from a process and standards point of view, to repeatedly exploit reuse opportunities in multiple software projects or products, and on how this can be implemented and harnessed on real world projects. To accomplish this, some development cases were selected from the available literature and effective approaches to the execution of tasks from processes of the Atech product life cycle model were exercised in two case studies. The application of effective approaches to development proved to be challenging, as whole new set of tools and processes are being demanded to adress the complexity of modern systems.