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Author: search.filters.author.Ogao, Patrick

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    Enterprise Resource Planning (ERP) System Implementation : A case for User participation
    (2013) Ogao, Patrick; Matende, Samuel
    The introduction of an information system such as Enterprise Resource Planning (ERP) system in an organization brings with it changes on how users work. An ERP system cuts across the different functional units of an organization and therefore if not properly managed during its implementation may lead to resistance from the users. The different streams of research on ERP systems have mainly been on ERP adoption, success measurement, and critical success factors (CSFs). There is a paucity of studies on user participation and the contribution of users towards the successful implementation of ERP systems. This paper reviews literature on ERP implementation with an aim of building a case for involving users in this implementation.
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    Evaluation of software visualization tools: Lessons learned
    (Institute of Electrical and Electronics Engineers (IEEE), 2009) Ogao, Patrick; Sensalire, Mariam; Telea, Alexandru
    Many software visualization (SoftVis) tools are continuously being developed by both researchers as well as software development companies. In order to determine if the developed tools are effective in helping their target users, it is desirable that they are exposed to a proper evaluation. Despite this, there is still lack of a general guideline on how these evaluations should be carried out and many of the tool developers perform very limited or no evaluation of their tools. Each person that carries out one evaluation, however, has experiences which, if shared, can guide future evaluators. This paper presents the lessons learned from evaluating over 20 SoftVis tools with over 90 users in five different studies spread on a period of over two years. The lessons covered include the selection of the tools, tasks, as well as evaluation participants. Other discussed points are related to the duration of the evaluation experiment, its location, the procedure followed when carrying out the experiment, as well as motivation of the participants. Finally, an analysis of the lessons learned is shown with the hope that these lessons will be of some assistance to future SoftVis tool evaluators.