Authorized To Forecast The GCSS-Army Demand Analysis process which recommends additions to and deletions from the Authorized Stockage List (ASL). Consumption Quantity of items consumed per requirement. Consumption Base Planning The concept of basing your planning on consumption rather than demands. Forecasting The GCSS-Army process that leverages consumption history to calculate supply requirements for a period of months into the future. Forecasting occurs when historical consumption data exists for the material and location. Forecasting is typically run by MRP Area. Maintenance Significant Part (MSP) A critical, repairable, and typically high dollar readiness driver. MRP Controller The MRP controller is the person responsible for the availability of consumable materials for maintenance and internal customers. This individual ensures that correct materials are procured at the correct time and in the correct quantities. MRP Exception Message (Created during the GCSS-Army planning run): Refers to an individual MRP element displayed MRP Exception Messages identify imbalances between supply and demand and usually require action on the part of the Stock Control Manager or Clerk to correct. Overdue Deliveries Items ordered that have not arrived within a calculated Planned Delivery Time (PDT). In GCSS-Army PDT is calculated by individual material (NIIN). Planned Delivery Time (PDT) The number of days elapsed from the initial generation of the Purchase Order/Stock Transport Order to the date of actual receipt of the item. PDT is captured for each Material Number that is forecasted using any approved forecasting model. Traffic Lights Status indicator icons displayed in GCSS-Army in the form of a traffic light. Used to prioritize of information viewed based on predetermined conditions and system settings. Warehouse Activity Monitor Decision Support Tool used to monitor the status of critical processes and situations in a warehouse. The primary purpose of the WAM is to alert managers of bottlenecks occurring in the flow of assets and transactions through the warehouse. Examples are: (a) Unconfirmed Transfer Orders, (b) Open Transfer Requirements, (c) Open Posting Change Notices, and (d) Open Deliveries.