795 research outputs found
Reflections on digital innovation
The paper by Henfridsson et al. opens up a new agenda for IS research on the
content and process of digital innovation. The crucial element in their
perspective is the role of recombination in innovation. They supplement an
emphasis on design recombination with a symmetrical emphasis on use
recombination. While supporting Henfridsson et al.s overall argument, I point
out how central parts overlap with and are extended in disciplines outside IS
research
Design and Implementation of Color-Shift Keying for Visible Light Communications
Color-shift keying (CSK) is a visible light communication (VLC) intensity modulation scheme, outlined in IEEE 802.15.7, that transmits data imperceptibly through the variation of the light color emitted by a red, green, and blue (RGB) light emitting diode (LED). Unlike other intensity modulation schemes, CSK guarantees that the intensity of the luminary will not fluctuate, thus limiting potential human health complications related to flickering light. In this work, a rigorous design framework for CSK constellations is presented. The benefits of the frame work are that it can optimize constellations while accounting for cross talk between the color communication channels formed by the colored LEDs. Unlike previous works, the method applies the study of colorimetry to optimize higher order CSK constellations such that the luminary functions with a desired operating color, allowing constellations to be designed to meet lighting industry quality metrics. This work concludes with the implementation of a CSK communication channel for the purposes of measuring the symbol error rate (SER) versus signal to noise ratio (SNR) of CSK constellations. It is demonstrated that the optimized constellations can achieve equal performance to the standardized constellations, outlined in Section 12 of IEEE 802.15.7, while only requiring half the transmitted power.Master of Applied Science (MASc
CROSS-CONTEXTUAL USE OF INTEGRATED INFORMATION SYSTEMS
The international industry of engineering products and services is characterized by high complexity and competition. Corporations that expand globally have experienced that managing interdependent activities and business processes across several countries requires an effective deployment of advanced information technology. Whereas the literature has described implementation of global information systems as a means to coordinate and control the business processes, empirical studies have shown that introducing a large-scale information systems involves several managerial challenges when organizations are geographically dispersed. This paper studies deployment of a global enterprise system to support evolvement of global business processes. On the basis of a qualitative case study of a multinational corporation implementing an enterprise system across several geographical locations, we identify counteracting forces in the process of global standardization of IS and business processes and discuss how the organization try to manage these forces and challenges therein. The findings suggest that global business processes develop through diverse processes of learning and negotiation between local practices of use and infusion of the global enterprise system
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