The process of data analysis can be divided into stages. The opinions of 20 statisticians on the considerations that are relevant to this decision have been studied. Nineteen concepts were identified which can be classijied into five groups:the analysis question; characteristics of the data collection; characteristics of the data; conditions for and influences on data analysis; conditions for and influences on statistical consultation. Economists mention considerations different to those mentioned by social scientists. Together the considerations form an exhaustive list of concepts that are relevant to the design of computerized support in statistics.