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When subcontractors cannot provide enough resources, they hinder their own per formance, that of other subcontractors, and ultimately the entire project.
Disputes among subcontractors would follow if the causes of delays are not clearly established and the cost overruns are not reimbursed properly.
Another notable feature is that every subcontractor only considers its own activities, but it will also enhance global outcomes.
Other, more complex middle agents, such as subcontractors, are not available in this architecture.
Therefore, the subcontractors may try to change the project schedule in order to accommodate their wishes.
The problem we are trying to solve is rescheduling activities through distributed coordination when subcontractors have available resources that differ from the needed resources.
Thus, projects need a new distributed coordination approach wherein all of the concerned subcontractors can respond to changes and reschedule a project dynamically.
Traditional centralized coordination techniques used by general contractors become insufficient as subcontractors per form most work and provide their own resources.
Changes are likely to cause schedule conflicts among subcontractors because any move affects the activities of other subcontractors in tightly coupled construction project schedules.
This resource histogram implies that some subcontractors' schedules differ from their original ones.
Therefore, there is a need for a methodology to handle subcontractors' resource-driven schedule changes.
Because their activities are interdependent with other subcontractors' activities, subcontractors have to consult with other subcontractors when rescheduling their activities.
One subcontractor in building construction stated that he was paid on a monthly basis, and only at a given rate per square metre completed.
Under the system, the entrepreneur supplied raw materials to subcontractors, who performed the work at home using their own machines and equipment.
We interviewed 2 general contractors and 12 subcontractors that self-per form construction work on drywall, structural concrete, mechanical ductwork, process piping, and electrical systems.
