Abstract
In the current system development, it is a fact that a lot of gaps exist between System Planning that is called a super-upper process and software development. Especially, it is thought that the tendency is remarkable on the business specification. In this paper, I embody the content that should be defined for the IT vendor's system proposal in the super-upstream process, to focus on eliminating the gap in terms of business specifications. It is done in view of project management, utilizing "BABOK" (Business Analysis Body of Knowledge) expected as a common system requirements analysis in the future. In addition, I systematize the result as a success element of the system development in the IT vendor's system proposal. And I consider effectiveness of the success element based on an actual system development case.
