Abstract:This paper describes the general architecture of a prototypical micro CAD‐based integrated model being developed at Southborough University to aid the planning of in‐situ concrete structures. The model is based on the coupling of two low cost and powerful project management (Artemis 2000) and computer aided design systems (AutoCAD 10) through an intermediary package (dBase IV). The main aim of this model is automate the planning process of in‐situ concrete structures, particularly the generation of network plans, using data generated by CAD systems. The model functional specifications (i.e., modeling, drafting, quantities and materials scheduling, time analysis, cost analysis, and reporting) were established after a thorough review of current planning models, a detailed questionnaire survey conducted amongst the main UK and USA contractors on the current status of planning techniques and information technology applications, and a detailed study of the various problems facing CAD‐based models.This model consists of three individual sub‐systems: modelling, data transfer and planning. The integration of these individual sub‐systems has been achieved on an IBM PS/2 MODEL 70. This enables the generation of network plans in the AutoCAD package (modelling subsystem) which are then automatically transferred (data transfer sub‐system) to the Artemis system for time and cost analyses (planning sub‐system). This paper outlines the work done so far and illustrates the proposed concept with a simpli