ARRM is an integrated, automated planning tool that provides planners (at installation level, Major Army Commands or Management Regions, and Headquarters, Department of the Army or HQDA) with the capability to quickly and easily determine approximate live training throughput capacities and throughput requirements for selected installations. It will also allow comprehensive "what-if" analysis of the impact of re-stationing actions on live training infrastructure. These approximations are also intended to serve as a baseline for further refinement in Range Training Land Program (RTLP) Development Plans (RDP's).

OBJECTIVE
The basic purpose of ARRM is to provide an automated capability focused on existing and future force structure and current live training facilities which allows HQDA, Management Region, and installation planners, using consistent data, to:

• analyze facility throughput requirements based on force structure and STRAC
• analyze facility assets and the training throughput capacity these assets provide
• evaluate impact of proposed stationing actions on availability of live training facilities
• review current Range Development Plans
• provide information to decision-makers in clear, quantitative terms

BACKGROUND
The real property master planning community has used a tool called the Headquarters Real Property Planning System or HQRPLANS since October of 1990. This system calculates facility requirements based on the current force structure, and compares these requirements to corporate data on facility assets and projected construction projects. ARRM tracks installation live training assets such as maneuver land and ranges based on the Active & Inactive (A&I) Range Inventory conducted for G-3 by the Army Environmental Center. Force structure is based on the Army Stationing Installation Plan (ASIP) with additional alignment of Reserve Component (RC) units to alternate weekend training sites and primary and secondary annual training sites for purposes of resource allocation. Throughput requirements are calculated based on equipment information from the TRADOC Documentation System (as available in the Army's Facility Planning System) and weapons training strategies from the Standards in Training Commission or STRAC manual. Throughput requirements are also calculated for over twenty standard type units (such as an Armor Division, Mechanized Infantry Division, Two-Brigade Heavy Division, and Light Infantry Division) and for Reserve Component organizations aligned with an installation for the purpose of allocating training resources. An off-line, manual version of ARRM has been in use since 1997 by HQDA to estimate installation training capacity. As a result of use during the stationing analysis for the first two Interim Brigade Combat Teams (IBCT's), HQDA tasked ATSC to implement ARRM.

SYSTEMS INTERFACE
The ARRM system is available worldwide via the Internet. The user interface resides on a PC. The system is updated annually with new range and maneuver land assets from the A&I inventory, force structure from the ASIP (with RC input of training alignments), and unit range requirements based on new TOE data.

CURRENT CONFIGURATION
The Army Range Requirements Model utilizes the multi-tier client/server architecture of HQRPLANS.  The ARRM Client provides a Graphical User Interface (GUI) that allows users to quickly request information.  All ARRM Client communication occurs via the Internet to the ARRM Application Server using minimal TCP/IP network resources.  The middle tier ARRM Application Server provides queuing, scheduling, and application execution between ARRM Clients and the backend ARRM Database Server.  The ARRM Database Server running Oracle 8 provides query results, data staging, and data analysis.  The ARRM client/server architecture provides performance and scalability to ARRM users with reduced network traffic and robust security.  The ARRM Client supports Microsoft Windows 98/ME/NT/2000/XP.