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An object-oriented and interactive computer system is presented that integrates project- and process-level planning. This system, named CIPROS, realistically models construction processes by matching resource properties with design component properties and operation durations. It uses a modular representation to create discrete event simulation networks and to relate simulation output to the design and construction plan of the facility to be built. CIPROS users must identify and describe attributes of components to be constructed, based on the facility's design drawings and specifications, and they must develop a CPM plan. They must also select a construction method to perform each activity by retrieving the appropriate elemental simulation network from a library of networks that represent such methods. CIPROS then pieces the networks together based on sequential relationships from the plan and property values input from the drawing and specification data. The latter initialize the simulation network resources that make up the constructed facility. To complete the simulation network, users must specify the construction resources that are available to perform the work and which may be shared by activities. CIPROS comprises a fully-operational discrete event simulation engine that is called once a network is completed. Besides producing statistical reports that are instrumental in assessing the quality of the construction plan, CIPROS can also be used to check the degree of facility completion as the simulation progresses.
Tommelein et al. (Sun,) studied this question.