This paper proposes a comprehensive approach for dealing with assimilation of innovative technology. The need for structural adaptation of the organizati on i n support of activities to manage adopti on and impl ementation i s model ed by both associative and causal expl anatory model s. Assimil ation success is studied as both a social and a technical construct. Results include: (1) success as absenteeism rate and goal attainment exhibits significant associative models; (2) successful resistance management, successful transition management and structural adaptation for transition appear most frequently as significant constructs expl aining assimil ation success in its various forms; (3) the two-stage causal model model cannot be either accepted or rejected; (4) the need for better measurement model s for several of the constructs is indicated; and (5) factors commonly associated with organizational innovativeness have seemingly little expl anatory power of assimil ati on success. Proposal s are made for future research efforts designed to yield more conclusive resul ts.