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Strategies to Deal with Legacy Information Systems: A Case Study from the Mozambican Health Sector
Abstract
When implementing reforms in the public sector in general and in the health sector in particular, special attention needs to be taken of the role of existing legacy information systems (LIS). Traditional strategies for system change were developed within a frame of one (or few) isolated which can be developed from scratch, and moved from old to new architecture. The existing infrastructure – installed base of LIS – is typically not seriously considered when implementing changes. A theoretical perspective is developed drawing upon concepts from LIS and Information Infrastructure (II) related literature. This theoretical perspective is drawn upon to analyze experiences from an ongoing attempt to introduce new health information systems(HIS) in the context of Mozambique. The paper concludes by proposing some strategies to deal with existing LIS
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