mostafa baghlani - MSc civil Engineering and Construction Management, Islamic Azad University, Science and Research Branch, Tehran
mohammad nazeri - MSc Structural Engineering Islamic Azad University, Branch, Dezful
hassan bahadori - Architecture Engineering University of Applied Science and Technology, Ilam

Today management of machines, instead of many technologies such as export human force- advanced machines and developing technical knowledge and information systems is confronted with complex elements. Study the discussions of management of machines, long-term and short term programming to sources - easy access to them during work and keeping method, repairs, security and finally optimal selecting and correct evaluations of machines can leads to increasing life time of machine and reduce the costs, time of projects, success of project in strategic view, prevent of machines faults and increasing efficiency . In this research it was tried that programming of a large project and selection related machines as a system be studied and with studying of all project as a system, efficiency rate of project be increased.

machines, optimal selection , keeping, security