Expert Systems for Construction Planning and Scheduling - An Integrated Approach

This paper represents an integrated software approach to the development of a computerised knowledge based system for construction planning and scheduling. The system, ESCHEDULER embraces hybrid methodology to make use of and to build on available experimental knowledge in construction planning, and to enhance currently available project management software and other computing algorithms. It integrates through an export system building tool (ESBT), relational data bases knowledge bases and their control functions, a traditional network analysis software and two inter facing programmes written in FORTRAN language. The main programme is written in the language provided by the ESBT, and DOS batch commands control the process of consultation and integration. This proto type system uses a micro computer base hybrid artificial intelligence (AI) environment and has some interesting features: the determination of job logic for the activities entered through an end user interface and a set of standalone nested export system modules to modify activity duration with respect to different site conditions. At the end of the consultation, ESCHEDULER prepares a realistic’ as possible ‘schedule. An example application is presented to illustrate the essential features of ESCHEDULERS. The system can successfully be apply to the other domains in construction management and its modular architecture allows further enhancement and expansion.