The modern Warfighter is a complex being operating inside a complex environment. Understanding and modeling the relationship of the Warfighter to his environment can help researchers better understand the necessary training environment. The Army Research Laboratory, Human Research and Engineering Directorate, Simulation and Training Technology Center (ARL-HRED STTC) has established the Soldier-Centered Army Learning Environment (SCALE) research program, supporting the Training & Doctrine Command (TRADOC) Army Learning Model. SCALE is investigating an ontological approach to understand these complexities from an education and training perspective. A particularly challenging aspect of the research was to develop a reference model that could be used for data management within a learning management system without being exceedingly complex. In understanding these relationships, and relating all data to nodes within the ontology, the SCALE research project is approaching the storage, development and administration of training in a cohesive and data-driven environment. This paper presents a draft reference model of the Soldier-centered environment, as well as an overview of how this data could be used along with instructional design principles to manage training.