Project management contingencies of various engineering projects are explored by means of a field study of 24 cases. The purpose of the present study is to classify projects according to the managerial procedures that are employed during their execution. A combination of quantitative and qualitative methods was selected as the best way to arrive at an encompassing view of project management. The author suggests a 2-D construct model to distinguish technical projects. The dimension of technological uncertainty at the project's initiation and the dimension of the project's scope are included. Technological uncertainty includes four types of projects: low-tech, medium-tech, high-tech, and super-high-tech. The project scope includes five levels: component, subsystem, system, platform, and an array of systems.
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