This thesis proposes a form-based distributed database design methodology($FD^3$). The methodology consists of five phase such as (ⅰ) form requirement analysis (ⅱ) scheme integration (ⅲ) distribution analysis (ⅳ) distribution design, and (ⅴ) local logical/physical design. In $FD^3$, all the important design information for phase are obtained by using an organization's forms. User's requirements are acquired from forms that also contain quantitative information for distribution design. $FD^3$ resolves naming conflicts by employing SQLs based on the form field data in the schema integration process. Furthermore, $FD^3$ enhances the quality of distribution design by incorporating communication costs into the design model. A case study is illustrated to demonstrate the usefulness of $FD^3$.