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I. Liem, A. Schatten, D. Wahyudin:
"Data Integration: an Experience of Information System Migration";
Talk: IIWAS International Conference on Information Integration, Web-Applications and Services, Yogyakarta Indonesien; 2006-12-04 - 2006-12-06; in: "Proceedings of the International Conference on Information Integration, Web-Applications and Services", (2006).

In this paper we present an experience of migrating a legacy academic information system to a new
system which has an entirely different characteristic. To be successful, project managers in such
projects will need a comprehensive view of all projects aspects: in particular stakeholder
participation and commitment with regards to the software development. In our work, the legacy
system was a centralised data processing system having distributed and redundant data
representation. The new system supports distributed transactions, and has a single centralised
database and supports a superset of responsibilities (data processing and monitoring).

While the new application has been completely redesigned and rewritten, the huge volume of legacy
data had to be restructured, integrated and conserved. This was particularly important, since
academic data has a long period of validity. The new system has to handle many concurrent users
and has strong security requirements. Additionally, a short implementation phase with easy
maintainability was demanded resulting in a short learning curve for the end-users.

We will share process and methodology that has been undertaken, and conclude that top level
management commitment, business process redefinition, application development & data migration
strategy as well as user involvement are the key success factors of new system implementation.

Data Integration, Business Process Reengineering, Information System Migration,