Yes this important thing but not key. It is possible situation that software outsourcing provider know part of necessary technologies and other part will be studied during project development and will be good result. Software outsourcing in current economical crisis around the world become as unique way for reducing company's operating costs. Software outsourcing in Ukraine is very competetive thing because it combine high professionalism, good location and resaunable prices. Each company which want reduce their expenses must review abilities for software outsourcing and development with good reliable partner. Companies with good experience proved by Microsoft Certified Partner status can provide to you best results. Please consider that reliability of your partner in software outsourcing is much important than price. In general price no have influence on quality of some company but in same time need understand that cheap price will be connected with cheap not qualified resources which can't develop difficult tasks in time. This is not possible buy Mercedes or Ferrary with price of China car. In software outsourcing development exists many situations when client and provider have dependency from each other. This fact need consider in cooperation. Neee consider business needs of client. This is key factor for right and succesful project organization which is a key factor for successful project and its delivering in time. With proper understanding of clients business needs it is possible to have perfect results in software outsourcing. So first step which must be done in establishing relationships in software outsourcing must consist in clarifying client's business needs and proving that software outsourcing provider understand these needs. After this need understood how provider understood clients project need and requirements and only after this need move for clarification of technological details of project and technical expertise for example in C# or APSX or in C++. Knowledge of some platform or language not mean directly that software outsourcing project will be developed in time with high quality.