title: Experiences from the Architectural Migration of a Joint Replacement Surgery Information System.
abstract: The goal of this study is to present the experiences gathered from the migration of an existing and deployed joint replacement surgery information system from a classical 2-tier architecture to a 4-tier architecture. These include discussion on the motivation for the migration and on the technical benefits of the chosen technical migration path and an evaluation of user experiences. The results from the analysis of clinical end-user and administrator experiences show an increase in the perceived performance and maintainability of the system and a high level of acceptance for the new system version.
authors.affiliation: Department of Signal Processing, Tampere University of Technology, POB 553, 33101 Tampere, Finland.
authors.forename: Samuli
authors.initials: S
authors.lastname: Niiranen
authors.affiliation: AMV Oy, Lintulamminkatu 13, 33400 Tampere, Finland.
authors.forename: Ari
authors.initials: A
authors.lastname: Välimäki
authors.affiliation: Department of Signal Processing, Tampere University of Technology, POB 553, 33101 Tampere, Finland.
authors.forename: Jari
authors.initials: J
authors.lastname: Yli-Hietanen