record, to make decisions about important issues in maintenance and to pass contusions improvement information on to analyses stage. Questionnaire design depends on keeping the questionnaire as short as possible. Use simple and clearly worded questions. Start with demographic questions to help respondents get started comfortably. Use dichotomous (yes/no) and multiple choice questions. Use open-ended questions cautiously. Avoid using leading-questions. The questionnaire was designed with structured questions in which the respondent could choose an answer from a set of list possibilities. Pretest a questionnaire (in Arabic) with maintenance manager in cement, academics and consultant through many draft tests. All their comments were considered in a revised version.