Critical path for a grey interval project network

For systems analysis, uncertainty may exist in model parameters and input data. Those uncertainties can propagate through the analysis and generate uncertainties into systems analysis. Grey systems theory offers a method for incorporating uncertainties into systems analysis. According to grey systems theory and the characteristics of interval plan network, this paper presents a method of the multiobjective making critical path. Examples are provided at the end to verify the feasibility of this method which combines subjective factors with objective factors.