This paper presents an object-oriented framework for task scheduling. This framework can be used in domains such as Process-centered Software Engineering Environments, Workflow Management Systems or Project Management Systems. The framework was conceived based on both current methods for the development of frameworks and an existing architectural pattern for process managers. A prototype of the framework was developed using the Java Language. The lessons learnt show the experience of extracting a framework from well-known applications that can be reused in practical domains. Thus, this work contributes not only in the production of a framework but also giving insights in the application of novel techniques to the development of frameworks.