Abstract
This article suggests the practical ideanecessary to make a success of the systems development project, focusing onthe procurement management, a part of the project management. There are 3 ways of dealing with "ambiguity" - "Avoidance", "Reduction", and "Shift". Those are important in the systems development. For "Avoidance", it is difficult to remove "Ambiguity" completely in the systems development. For "Reduction", we try to introduce the idea offunctional unit model to make the scope clear, define the scope based on a standard classification, and consider the purpose and the value of the business to transmit the scope. In the advance agreement with the consignee, project management methods and wording should be objective and be known to all members including various rules. The consignee should be selected carefully, with efficient information gathering and use. Lastly, to "Shift" the ambiguity, a phased conclusion of the agreement or an introduction of an American-style agreement for insurance is recommended.
