Abstract
The increasing power of mobile devices means that companies and institutions can now look to exposing their systems to these devices. As part of a research project, we need to re-engineer a system to expose it 'as a service' in order to enable access by multiple devices. The aim of this study was to identify approaches to the re-engineering of systems to provide multichannel service-oriented access. A systematic literature review was performed to gather relevant information. We found fifteen methods of service-oriented re-engineering, two methods of re-engineering for multichannel access plus a set of problems that had been identified during the re-engineering activities. The two methods found did not meet our needs. The verbosity of Web-services and the limitations of mobile access is an issue that needs further investigation.