This paper describes the analysis, design and implementation of a software tool that provides assignments for the management of loan materials in libraries and laboratories of a Higher Education Institution.Within the development time used under the methodology of evolutionary prototype which part of the initial deployment where the user interacts with your comments thus creating a refining process through the various versions until a suitable system are determined.Development outcomes of the project are presented, which include software implementation: based on the ISO/IEC 25010 standard under the criteria of functionality and usability, the last criterion supported under the survey of a sample of 8 users from a population of 450 students.The software has complied with the requirements established in product requirements.