The research in WBE systems is centered in reusability, accessibility, durability and interoperability of didactic materials and environments of virtual education. In this article we make a development proposal based on a special type of labeled materials called Intelligent Reusable Learning Components Object Oriented (IRLCOO), the components conform a fundamental part of the tool CASE of courses authoring tool denominated Authoring IRLCOO, producing learning materials with interface and functionality standardized with SCORM 1.2, rich in multimedia, interactivity and feedback is described. The structuring model for dynamic composition of these components is based on the concept graph knowledge representation model. The multiagent architecture as a middleware for open WBE system is developed for sequencing and delivery of learning materials composed of IRLCOOs.