In recent years, outsourcing has grown and causes flexibility and dynamically of firms in competitive environment. One of the most important rationales of outsourcing is increment of pressures which overlaid on firms by competitive forces. Because of information system's role in competitive advantage acquisition, most firms outsource it in order to reach advanced and new technologies. Also, according to importance of IT firms in development of county and their immaturity, outsourcing can be a solution for promotion of their performance. So, it is necessary to procreate different incentives of outsourcing and improve firm's performance to manage outsourcing relationships. The purpose of this paper is to identify and rank different incentives of information systems outsourcing and to specify development solutions of IS outsourcing in Iranian IT firms. The results of this research which is done for Tehran's IT firms, illustrate differences among importance of each IS outsourcing incentives and solutions.

Consumption pattern reform can be interpreted as adopting “appropriate and effective strategies to achieve optimum use of available resources and facilities”. Shortage of resources and facilities in line with programs and goals may be seen in every organization. Factors such as the increase of pressures, difficulties of dealing with certain affairs, technological complexities, specialization of tasks, acceleration of changes, uncertainty about the future, enlargement of organizations and so on, have caused organizations to revise their way of managing procurement chain and to adopt new strategies for better use of existing resources and improvement of consumption patterns. One of these strategies is “outsourcing”. Outsourcing strategy has been employed by many organizations, especially military and defense organizations, inside the country and abroad, one of which is logistics section. In this article, the effect of applying outsourcing strategy in reforming and improving consumption patterns in military organizations logistics is examined.

Increment of complexity and costs of information technology systems have made many problems about infrastructure and manpower for organizations which have been decreased by the use of outsourcing. All organizations try to increase the success of outsourcing projects by using different ways. One of the important reasons for failure of these projects especially in IT area- because of its major role in acquisition of competitive advantage- is selecting inappropriate contractor. In order to existence of different and contradictive criteria, this selection is complex. The purpose of this research is to determine important criteria and specify the weights of each criterion and finally design a fuzzy expert system for selecting the best contractor in IT outsourcing. The method of knowledge acquisition from experts-which are managers and experts of IT- is a questionnaire. Also in order to evaluate the validity of system, it was used in an IT company. The results show the favorable performance of contractor selection expert system.

This study introduces a model for warranty service outsourcing. This model was built based on two phases. First, by referring a failed item, using PROMETHEE, it is begun to rank the priority of partners to assign the defective products. In the second phase, the products are assigned to the partner with multi-objective linear programming based on the priorities that was earned from the first phase. Minimizing the costs and maximizing the customer satisfaction are the major goals in this paper. To do this, multi-objective zero-one L.P counting determined ranking was applied. As a result, decreasing the waiting time to repair the item or decreasing intervals to send the item for repair, an increase for customer satisfaction can be expected.