129,468 research outputs found
Information systems evaluation: Navigating through the problem domain
Information systems (IS) make it possible to improve organizational efficiency and effectiveness, which can provide
competitive advantage. There is, however, a great deal of difficulty reported in the normative literature when it comes to the
evaluation of investments in IS, with companies often finding themselves unable to assess the full implications of their IS
infrastructure. Although many of the savings resulting from IS are considered suitable for inclusion within traditional
accountancy frameworks, it is the intangible and non-financial benefits, together with indirect project costs that complicate the
justification process. In exploring this phenomenon, the paper reviews the normative literature in the area of IS evaluation, and
then proposes a set of conjectures. These were tested within a case study to analyze the investment justification process of a
manufacturing IS investment. The idiosyncrasies of the case study and problems experienced during its attempts to evaluate,
implement, and realize the holistic implications of the IS investment are presented and critically analyzed. The paper
concludes by identifying lessons learnt and thus, proposes a number of empirical findings for consideration by decisionmakers
during the investment evaluation process
A review of information flow diagrammatic models for product-service systems
A product-service system (PSS) is a combination of products and services to
create value for both customers and manufacturers. Modelling a PSS based on
function orientation offers a useful way to distinguish system inputs and
outputs with regards to how data are consumed and information is used, i.e.
information flow. This article presents a review of diagrammatic information
flow tools, which are designed to describe a system through its functions. The
origin, concept and applications of these tools are investigated, followed by an
analysis of information flow modelling with regards to key PSS properties. A
case study of selection laser melting technology implemented as PSS will then be
used to show the application of information flow modelling for PSS design. A
discussion based on the usefulness of the tools in modelling the key elements of
PSS and possible future research directions are also presented
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An Empirical Study of the Effectiveness of 'Forcing Diversity' Based on a Large Population of Diverse Programs
Use of diverse software components is a viable defence against common-mode failures in redundant softwarebased systems. Various forms of "Diversity-Seeking Decisions" (“DSDs”) can be applied to the process of developing, or procuring, redundant components, to improve the chances of the resulting components not failing on the same demands. An open question is how effective these decisions, and their combinations, are for achieving large enough reliability gains. Using a large population of software programs, we studied experimentally the effectiveness of specific "DSDs" (and their combinations) mandating differences between redundant components. Some of these combinations produced much better improvements in system probability of failure per demand (PFD) than "uncontrolled" diversity did. Yet, our findings suggest that the gains from such "DSDs" vary significantly between them and between the application problems studied. The relationship between DSDs and system PFD is complex and does not allow for simple universal rules
(e.g. "the more diversity the better") to apply
System implementation: managing project and post project stage - case study in an Indonesian company
The research reported in this paper aims to get a better\ud
understanding of how the implementation process of\ud
enterprise systems (ES) can be managed, by studying the\ud
process from an organisational perspective. A review of\ud
the literature on previous research in ES implementation\ud
has been carried out and the state of the art of ES\ud
implementation research is defined. Using several body of\ud
literature, an organisational view on ES implementation is\ud
described, explaining that ES implementation involves\ud
challenges from triple domain, namely technological\ud
challenge, business process related challenge, and\ud
organisational challenge. Based on the defined state of the\ud
art and the organisational view on ES implementation\ud
developed in this research, a research framework is\ud
presented, addressing the project as well as the postproject\ud
stage, and a number of essential issues within the\ud
stages. System alignment, knowledge acquisition, change\ud
mobilisation are the essntial issues to be studied in the\ud
project stage while institutionalisation effort and\ud
continuous improvement facilitation are to be studied in\ud
the post-project stage. Case studies in Indonesian\ud
companies are used to explain the framework
DevOps: introducing agility and flexibility to BPO-IT organisations – service providers’ perspective
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