sobanyan, this system helps small and medium enterprises that sufficient supply there are more than 6,000 projects and more than 80,000 half-finished projects in the country, from tehran north freeway to the qazvin-rasht railway, which requires the financing of half-finished projects in the country . there are 50 years of work for a half-finished project . the need for financial facilities and providing collateral for some producers has also caused problems, and the amount of goods loan received today is to solve this problem from a system called touring in the ministry of economy and show that payment is based on the contract , in which the payment of the resulting duties from the project to the contractor in stages and before completion the project is paid by a financial institution, in fact, the project contractor who has realized or unrealized claims from the executive body can assign these contractual claims to a financial institution. the financial institution will finance the project in return for accepting the contractual claims. in the end, at the end of the work, the same expert