This research note details the recommended design of the Commanders' Integrated Training Tool (CITT) application. The CITT is designed to provide commanders and training developers with ready access to information concerning the Close Combat Tactical Trainer (CCTT), existing CCTT training support packages (TSPs), and guidance and tools for modifying and developing CCTT TSPs. This research note includes numerous Integrated Computer Aided Manufacturing Definition or IDEF/phi diagrams and their derivatives. These documents can be used by software programmers in the development of the objective CITT. The documentation is fully supportive of the Army Training Information Management Program (ATIMP) Systems requirements as delineated by the Department of Defense Enterprise Model and was completed in accordance with industry accepted modeling procedures and standards. The purpose of this model is to identify and organize information that supports the development of a comprehensive application that provides for the creation, archiving, and retrieval of TSPs. It provides all required documentation for the development of an application that details the framework and all necessary tools for the creation and modification of TSPs for use in CCTT. This includes data on the structured training process and the exercise development process, all of which are key features of the CITT.