This study tests the applicability of Rogers’ (1995) diffusion of innovation (DOI) theory to a particular information technology innovation: object-oriented systems development (OOSD). Survey data from 150 experienced developers are analyzed using LISREL structural equation modeling techniques to determine the factors associated with OOSD adoption. Results indicate that the developer’s receptiveness to OOSD is the primary determinant of its adoption, followed by the perceived process benefits of easier programming, improved modularity, and flexible development. The influence of one’s coworkers and supervisors is shown to have a small but significant effect on the rate of OOSD adoption.