University of York Students' Union
HEIS (Higher Education Information System) is a project funded by the Croatian Ministry of Science, Education and Sports started in the year 2001. HEIS is a comprehensive information system that provides support for education related processes taking place within a higher education institution. As a part of the project, a data warehouse was developed to provide reporting and analytical features. This paper presents the HEIS data warehouse architecture, comments on the data model and addresses issues (and solutions) that arose during the seven-year development and maintenance period. Foremost, the authors address improvements in the ETL process and maintenance process.