The role of software systems in organizations is always increasing and constantly evolving; it consists in providing business and decision support services. Nevertheless, the value obtained from an organization's vast investment in information technology is often less than expected, due in large measure to a crisis in software engineering caused by high maintenance costs and an increasing number of projects failures. Many authors lay stress on the fact that software reuse and software architecture permit organizations to improve process productivity, to deal with software complexity and to take into account all the aspects of software. But, many problems related to software artifacts reuse and maintenance must be solved. This paper provides a reuse organizational framework to deal with these problems, based on the agency theory and software architecture. In this work, we distinguish four spaces associated with project actors and we examine most specifically interrelations between the architecture space and the construction space.