With the development and progress of economy society, management level my country’s construction projects has also been greatly improved, especially in water conservancy projects, cost process made significant progress; industry is order to improve market enterprises. Competitiveness, increase share company, it necessary company an all-round way, maximize economic benefits company.In efficiency...

extensive research has been devoted to resource constrained project scheduling problem. however, little attention has been paid to problems where a certain time penalty must be incurred if activity preemption is allowed. in this paper, we consider the project scheduling problem of minimizing the total cost subject to resource constraints, earliness-tardiness penalties and preemption penalties, ...

Software project estimation for such items as Size, Effort, Cost, Delivery time, Reliability and Risk, is a fundamental skill for software engineers. In order to improve estimation, there is a need for measurement of the measurements, that is, a meta-metric for the process. This paper compares three existing metrics and provides an example of conversions between them. It then extends one (DeMar...

Context: Software engineering has a problem in that when we empirically evaluate competing prediction systems we obtain conflicting results. Objective: To reduce the inconsistency amongst validation study results and provide a more formal foundation to interpret results with a particular focus on continuous prediction systems. Method: A new framework is proposed for evaluating competing predict...

The transmission line project cost index, which reflects price changes of transmission line project components affecting project cost, is an integrated indicator. Based on the constitution of the transmission line project cost index, 324 transmission line project cost index during 2002 and 2010 were selected, in order to describe variation tendency of the transmission line project cost index in...