We consider here three solvable tasks to optimize execution of development work (DW) on creating a new sample of an industrial product. This work represents a chain of linked operations, each for them can be performed by several alternative options. Each such option is characterized by two parameters: cost and net time of executing this operation. At that, is minimized the cost (or time) of performing the DW under given restriction on the time (cost) of its perform. In other words, there is solved the problem of compromise between cost and run-time of DW execution on creating a new product.

     For the task of minimizing the cost of executing the DW are allowed temporarily unavailable resources (TUR), which are required to perform certain operations. To do this, are specified several categories of TUR, which also can include a category of constantly available resources. For each of these categories are set the timeslots of resource accessibility, and in parameters of operations execution options — required categories numbers.

     TUR are quite frequently encounteredin practice when performing DWs. For example, during work stoppages on weekends and holidays, as well as while temporary employment in another places of a team of executers, which perform separate operations of the chain.

     These tasks can be solved numerically by using the new science-intensive network technology called "Information technology of automation of control of discrete technological and information processes (in short — IT AC DTIP)", because optimizable process has all necessary properties for that. This process is discrete and is classified as a time-limited process. Its elements in terms of DTIP are:

• chain of linked operations — a network demand (a chain of linked stages of service);
• resource to perform a current operation (team of executers with equipment) — a device of service.