Summary form only given, as follows. One of the most important challenges faced by systems developers is the selection of the systems development methodology. The methodology chosen will have a large impact on different aspects of development (i.e, cost, time, resources needed, etc.). There is limited research aimed to assist systems developers in the selection of the most appropriate methodology for their particular cases. Previous research have mainly focused on the type of system and personal preferences, but very little has been said about the influence of organisational variables. The paper reports the results of a survey which studied the systems development methodologies used in different sectors of the New Zealand economy. The relationships between system development methodologies and organisational demographic variables are identified. Responses from 353 organisations show that there is a clear relationship between the two sets of variables.