Abstract : This document is a manual for the application of the computerized Life Cycle Cost (LCC) Model designed for the Full-Scale Engineering Development (FSED) Phase of the SEEK TALK Program. FSED contractors will use the model to perform cost estimates, identify cost drivers and make trade and other cost-related analyses. The manual assists users in establishing input parameter values, making LCC calculations and utilizing results. It also describes how to prepare computer inputs and run the model in either the interactive or batch mode. Volume I is entitled Life Cycle Cost Management, and Volume II, Model Equations and Model Operations. (Author)