Title |
Easy FAST: An Effective Computerized FAST Diagramming Model for Construction VE Projects |
Keywords |
Value Engineering ; Construction VE ; Function Analysis ; FAST ; Computerized Model |
Abstract |
In construction VE practices, FAST(Function Analysis System Technique) is not properly applied or even omitted, due to misunderstanding on its objective as well as difficulty of its diagramming. This study is initiated with the fact that the concept of the FAST diagramming is originated from CPM(Critical Path Method) networking concept and with the belief that the networking logic might be applied for solving some problems concerning FAST application. The study presents a prototype of computerized FAST diagramming model, called Easy-FAST, by using MS Project 2000, a CPM software. And also the study suggests the FAST diagramming method and procedure. The overall structure of Easy-FAST is formed with two modules- FAST diagramming module and database module. The FAST diagramming module consists of function worksheet and FAST diagram box. FAST diagram is generated by simply entering function ID number(s) that represent preceding relations between functions. The diagram can be modified through adjusting the relations of preceding functions or re-classifying function type on the function work sheet. The function information generated by this model is stored in function database for future VE study. The database is designed with special breakdown structure that is classified and coded according to project, space and element, element and component. The function database module is developed by using MS Access and MS Visual 6.0. It is expected that the Easy-FAST and its diagramming procedure can greatly improve the time-consuming diagramming practice by enabling concentration on function analysis and enhancing time-limited VE activities. The usefulness of the Easy-FAST was validated with interview with VE experts. |