79 research outputs found

    Strategic Information Planning – Insights from an Action Research Project in the Financial Services Industry

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    The core purpose of strategic information planning (SIP) lies in identifying future directions for investments in information technology, information systems and information supply that will assist an organisation to realise its business goals. SIP is a critical challenge and major concern to both academics and practitioners, in particular consultants. While the latter have proposed a number of formal methodologies and principles of good practice, these are normative recommendations that are hardly justified through theoretical insight. In fact, SIP is yet to be well understood theoretically and requires more empirical support. This motivated us to carry out an in depth case study on SIP in a financial service company. The study aimed at improving the SIP practices in place and was conducted in an action research-like manner. This research report at hand presents the results of the study. We firstly describe the enterprise, its situation and the SIP practices in place. We then reflect upon the SIP process, its contingencies and its outcome in light of the current academic literature. This leads us to a number of theoretically informed suggestions that concern the improvement of SIP as well as the direction of the resulting information strategy. These suggestions have already been debated with senior IT executives from the case enterprise. This debate helped to confirm some theoretical propositions from literature while other recommendations were not agreed upon by the practitioners. Our findings from the study are finally framed to give a fresh impetus to future research and perhaps challenge some current wisdom. <br

    A Literature Overview on Strategic Information Systems Planning

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    Strategic Information Systems Planning (SISP) has been among the highest ranked issues on management agendas for many years. As such, SISP should be a major concern for researchers as well. However, SISP does not play that important of a role in the academic discussion, at least in Germany. Leading German textbooks on Information Management devote only small sections to strategy themes. Moreover, the recommendations given for conducting SISP in these textbooks are mainly normative and hardly take international research findings into account. Taking this as a motivation, we conducted a comprehensive literature review of German and Anglo-American information systems journals. Our objective was to understand more fully what we know about SISP through international research. On the flip side, our research aims at identifying fields that are in urgent need for closer academic investigation so that individual speculations and normative recommendations might still substitute for valid research insights. Overall, we found a considerable amount of research conducted in the field of SISP that we organised in five broad thematic fields: Strategic IT impact, approaches to SISP, information systems strategy, and strategic alignment. We give a short overview of research conducted so far and seminal publications available in the research fields. Moreover, based on a sub-sample of our literature base, we compute statistics which indicate the intensity of the academic discussion in the different thematic fields over time. Our statistics show that most attention has been paid to the competitive use of IT. The IS strategy in contrast has only been of limited interest, though it is central to any strategic considerations in IS. Our survey also suggests that German speaking researchers have devoted relatively few efforts to SISP in comparison to their Anglo-American colleagues

    Defining the Content of Information Strategy: Linking Theory and Practice

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    FĂŒr viele Unternehmen ist Informationsverarbeitung (IV) nicht mehr nur ein Kostenfaktor, sondern von strategischer Bedeutung. Dementsprechend findet sich die strategische IV-Planung seit geraumer Zeit auf den vordersten PlĂ€tzen der Managementagenda. Bisher lag der Fokus der Forschungsarbeiten allerdings auf dem Planungsprozess und nicht auf den Inhalten des Planungsergebnisses, der Informationsstrategie. In dieser Arbeit wird untersucht welche IV-bezogenen Entscheidungen von strategischer Relevanz fĂŒr Unternehmen sind. Dabei werden die Argumente der Praktiker mit theoretischen AnsĂ€tzen kombiniert um zu einem begrĂŒndeten und praktisch relevanten Vorschlag fĂŒr die Inhalte von Informationsstrategien zu kommen

    Probing IMF using nanodust measurements from inside Saturn's magnetosphere

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    We present a new concept of monitoring the interplanetary magnetic field (IMF) by using in situ measurements of nanodust stream particles in Saturn's magnetosphere. We show that the nanodust detection pattern obtained inside the magnetosphere resembles those observed in interplanetary space and is associated with the solar wind compression regions. Our dust dynamics model reproduces the observed nanodust dynamical properties as well as the detection pattern, suggesting that the ejected stream particles can reenter Saturn's magnetosphere at certain occasions due to the dynamical influence from the time‐varying IMF. This method provides information on the IMF direction and a rough estimation on the solar wind compression arrival time at Saturn. Such information can be useful for studies related to the solar wind‐magnetosphere interactions, especially when the solar wind parameters are not directly available. Key Points A new method to probe IMF with nanodust measurements inside the magnetosphere Under changing IMF, ejected nanoparticles can re‐enter Saturn‐s magnetosphere IMF direction and solar wind compression arrival time can be derivedPeer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/99078/1/grl50604.pd

    On Two Models of the Light Pulse Delay in a Saturable Absorber

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    A comparative analysis of two approaches to description of the light modulation pulse delay in a saturable absorber is presented. According to the simplest model, the delay of the optical pulse is a result of distortion of its shape due to absorption self-modulation in the nonlinear medium. The second model of the effect, proposed at the beginning of our century, connects the pulse delay with the so-called "slow light" resulting from the group velocity reduction under conditions of the coherent population oscillations. It is shown that all the known experimental data on the light pulse delay in saturable absorbers can be comprehensively described in the framework of the simplest model of saturable absorber and do not require invoking the effect of coherent population oscillations with spectral hole-burning and anomalous modifications of the light group velocity. It is concluded that the effect of group velocity reduction under conditions of coherent population oscillations has not received so far any experimental confirmation, and the assertions about real observation of the "slow light" based on this mechanism are groundless.Comment: Regretfully, the journal version of the paper (in Optics and Spectroscopy) appeared to be strongly corrupted due to ignorant editing. In particular, "coherent population oscillations" (CPO) was replaced by "population coherent oscillations" (PCO), "bleaching" - by "clearing", and "bleachable absorber " - by "clearable absorber". Here we present original version of the pape

    Impact ionization mass spectra of anorthite cosmic dust analogue particles

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    Anorthite, the Ca-rich end-member of plagioclase feldspar, is a dominant mineral component of the Lunar highlands. Plagioclase feldspar is also found in comets, meteorites and stony asteroids. It is therefore expected to contribute to the population of interplanetary (and circumplanetary) dust grains within the solar system. After coating micron- and submicron-sized grains of Anorthite with a conductive layer of Platinum, the mineral was successfully accelerated to hypervelocity speeds in the Max Planck Institut fĂŒr Kernphysik’s Van de Graaff accelerator. We present impact ionization mass spectra generated following the impacts of anorthite grains with a prototype mass spectrometer (the Large Area Mass Analyser, LAMA) designed for use in space, and discuss the behavior of the spectra with increasing impact energy. Correlation analysis is used to identify the compositions and sources of cations present in the spectra, enabling the identification of several molecular cations (e.g., CaAlO2, CaSiO2, Ca2AlO3/CaAlSi2O2) which identify anorthite as the progenitor bulk grain material

    Systematizing Policy Learning: From Monolith to Dimensions

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    notes: The authors wish to express their gratitude to the Norwegian Political Science Association Annual Conference, 6 January 2010, University of Agder, Kristiansand, participants of the ‘Establishing Causality in Policy Learning’ panel at the American Political Science Association (APSA) annual meeting,2–5 September 2010,Washington DC, and the European Consortium of Political Research (ECPR) Joint Sessions, St Gallen, 12–17 April 2011, workshop 2. Dunlop and Radaelli gratefully acknowledge the support of the European Research Council, grant on Analysis of Learning in Regulatory Governance, ALREG, http://centres.exeter.ac.uk/ceg/research/ALREG/index.php.publication-status: AcceptedThe definitive version is available at www.blackwell-synergy.com and also from DOI: 10.1111/j.1467-9248.2012.00982.xThe field of policy learning is characterised by concept stretching and lack of systematic findings. To systematize them, we combine the classic Sartorian approach to classification with the more recent insights on explanatory typologies. At the outset, we classify per genus et differentiam – distinguishing between the genus and the different species within it. By drawing on the technique of explanatory typologies to introduce a basic model of policy learning, we identify four major genera in the literature. We then generate variation within each cell by using rigorous concepts drawn from adult education research. Specifically, we conceptualize learning as control over the contents and goals of knowledge. By looking at learning through the lenses of knowledge utilization, we show that the basic model can be expanded to reveal sixteen different species. These types are all conceptually possible, but are not all empirically established in the literature. Up until now the scope conditions and connections among types have not been clarified. Our reconstruction of the field sheds light on mechanisms and relations associated with alternatives operationalizations of learning and the role of actors in the process of knowledge construction and utilization. By providing a comprehensive typology, we mitigate concept stretching problems and aim to lay the foundations for the systematic comparison across and within cases of policy learning.European Research Council, grant no 230267 on Analysis of Learning in Regulatory Governance, ALREG

    Auger Recombination in Low-Dimensional PbSnTe Structures

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    How is the efficiency of Auger recombination in PbSnTe structures influenced by the reduction of dimensionality? Two points are investigated, the variation of matrix elements and of activation energies, respectively. It is shown that the latter one gives the more decisive effect. This effect is strongly anisotropic. Thus, {100}-planes or [100]-directions are favoured to yield large Auger lifetimes for Q2D or Q1D structures, respectively

    Aschen als Rohstoff fĂŒr die DĂŒngemittelindustrie

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    Phosphorus in its function as an essential plant nutrient is of strategic importance for mankind. At present, different processes for the recovery from waste materials are under discussion. The fertilizing effect of the recovered secondary phosphates is inconsistent and partly not suitable for the requirements of agriculture. The preparation of standard products through the inclusion of phosphorus-containing ashes in existing processes in the chemical industry offers itself here as solution
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