Development of an object-oriented scheduling model for construction projects

The relations of the construction activities can be demonstrated by fixed and soft logics. The fixed logic provides only a logic sequence of the construction activities. On the other hand, soft logic provides other possibilities of analyzing the activities. The current network techniques presume that there is only one logical sequence of the activities in a project. Therefore, planners need to choose one particular logical sequence even if there is more than one solution. This causes the time-consuming problem of schedule updating on soft-logic sequencing. This paper discusses the factors that influence the sequencing of the soft-logic and the heuristic sequencing principles. It develops algorithms incorporating with the heuristic sequencing principles to automatically identify the logical sequence of activities with soft logic that satisfies the given factors, and encapsulates the concept in a model with object-oriented paradigm.