This exploratory study investigated the role of a data-warehouse as an information source for decision support applications and its recognized value by the system users. Also, system and non-system issues that should be addressed for the effective use of a data-warehouse were discussed. Relevant data were collected through a survey and interviews from users of the data-warehouse at a large enterprise. Data analysis, in general, confirmed that data-warehouse was critical especially for managerial decision supports. However, there were several system design- and system management-related issues that needed more attentions to optimize its utility and to increase the satisfaction of users.