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- Janssen, R.M.J. (author), Röttgering, H.J.A. (author), Best, P.N. (author), Brinchmann, J. (author) conference paper 2012
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Zuiderwijk-van Eijk, A.M.G. (author), Janssen, M.F.W.H.A. (author)Infrastructures may improve the use of Open Government Data (OGD) by providing insight in how individuals can participate in data reuse and in the quality of open data. Yet, most OGD infrastructures do not support such activities. The objective of this paper is to evaluate the importance and usability of participation mechanisms and data quality...conference paper 2015
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Aarsen, R. (author), Janssen, M. (author), Ramkisoen, M. (author), Biljecki, F. (author), Quak, W. (author), Verbree, E. (author)In case of a calamity in the Netherlands - e.g. a dike breach - parts of the nationwide electric network can fall out. In these occasions it would be useful if decentralised energy sources of the Smart Grid would contribute to balance out the fluctuations of the energy network. Decentralised energy sources include: solar energy, wind energy,...conference paper 2015
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Janssen, M.F.W.H.A. (author)The service-oriented enterprise (SOE) is often considered as the future model of organization. Yet there is little empirical research in this domain and limited insight into the benefits and disadvantages. In this paper we analyze a case study of a large, multinational banking company. This company is modularized in functions and business...conference paper 2008
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- Van der Toorn, A. (author), Van der Wiel, W.D. (author), De Rooij, M. (author), Janssen, H. (author), Kiljan, D.J. (author) conference paper 2013
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Battjes, J.A. (author), Janssen, J.P.F.M. (author)A description is given of a model developed for the prediction of the dissipation of energy in random waves breaking on a beach. The dissipation rate per breaking wave is estimated from that in a bore of corresponding height, while the probability of occurrence of breaking waves is estimated on the basis of a wave height distribution with an...conference paper 1978
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Janssen, M.F.W.H.A. (author), Wagenaar, R. (author)Information systems engineering projects in egovernment are confronted with high costs, lack of expertise and developing similar functionality over and over. A shared services centre might provide common services to local government organizations without affecting the autonomy of organizations and providing the flexibility to enhance and include...conference paper 2004
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- Bouwman, W.A.G.A. (author), De Reuver, G.A. (author), Solaimani Kartalaei, H. (author), Daas, D. (author), Haaker, T. (author), Janssen, W. (author), Iske, P. (author), Walenkamp, B. (author) conference paper 2012
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Quak, C.W. (author), Janssen, P. (author), Reuvers, M. (author)In 2005 a base model for geographic information in the Netherlands was published named NEN 3610. The model consist of a modeling framework (based on the ISO19100 series) and a collection of extensible base classes. In the following years many organizations have built their models in conformance to this base model (IMRO, TOP10NL, IMTOP, IMWA,...conference paper 2009
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Janssen, M.F.W.H.A. (author), Wagenaar, R. (author), Beerens, J. (author)The planning and subsequent nationwide implementation of E-government service provisioning faces a number of challenges at the level of municipalities in the Netherlands. Initiatives are confronted with a highly fragmented ICT-architecture that has been vertically organized around departments and with hardly any common horizontal functionality....conference paper 2003
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Deljoo, A. (author), Janssen, M.F.W.H.A. (author), Klievink, A.J. (author)Public-private service networks (PPSN) consist of social and technology components. Development of PPSN is ill-understood as these are dependent on a complex mix of interactions among stakeholders and their technologies and is influenced by contemporary developments. The aim of this paper is to advance our understanding of PPSN by modeling its...conference paper 2013
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Janssen, M.F.W.H.A. (author), Hjort-Madsen, K. (author)National enterprise architectures (NEA) promise to fill the gap between policy and implementation. NEAs are embedded within an institutional environment consisting of active players capable of responding strategically and innovatively to architectural initiatives, which might complicate NEA adoption. In this paper we analyze the efforts of two...conference paper 2007
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Janssen, M.F.W.H.A. (author), Van der Duin, P. (author), Wagenaar, R.W. (author), Bicking, M. (author), Wimmer, M.A. (author), Dawes, S. (author), Petrauskas, R. (author)E-government research is currently at a stage of consolidation and new orientation. Smaller steps of government modernization have in part been successfully implemented; larger ones still lie ahead of us. Within an EC funded project, a roadmap for egovernment is being defined. Thereby, scenario building about the future is being used to grasp...conference paper 2007
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Smit, P.B. (author), Janssen, T.T. (author), Herbers, T.H.C. (author)Refraction of narrow-band surface waves in coastal areas can result in wave-focal zones where due to interference, wave statistics vary rapidly and on similar length scales as those of individual waves. However such interference patterns, or wave coherence, are not accounted for in conventional stochastic wave models that are based on the energy...conference paper 2012
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Dirksen, P. (author), Braat, J. (author), Janssen, A.J.E.M. (author), Leeuwestein, A. (author), Kwinten, H. (author), Van Steenwinckel, D. (author)This study presents an experimental method to determine the resist parameters that are at the origin of a general blurring of the projected aerial image. The resist model includes the effects of diffusion in the horizontal plane and a second cause for image blur that originates from a stochastic variation of the focus parameter. The used...conference paper 2004
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Dirksen, P. (author), Braat, J.J.M. (author), Janssen, A.J.E.M. (author), Leeuwestein, A. (author), Matsuyama, T. (author), Noda, T. (author)Phase Measurement Interferometers (PMI) are widely used during the manufacturing process of high quality lenses. Although they have an excellent reproducibility and sensitivity, the set-up is expensive and the accuracy of the measurement needs to be checked frequently. This paper discusses an alternative lens metrology method that is based on an...conference paper 2006
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Smit, P.B. (author), Janssen, T.T. (author)Wave fields traveling through a varying medium (e.g. topography, currents), can develop well-defined focal zones and caustics, where the wave field is highly coherent and wave statistics vary rapidly. However, the presence and evolution of such coherent structures in the wave field are not resolved in a quasi-homogeneous description of the wave...conference paper 2011
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- Dirksen, P. (author), Braat, J.J.M. (author), Janssen, A.J.E.M. (author), Leeuwesteijn, A. (author) conference paper 2005
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- Cresswell, A. (author), Janssen, M.F.W.H.A. (author) conference paper 2004
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Janssen, M.F.W.H.A. (author), Kuk, G. (author)Within the public sector, the deployment of enterprise architecture is often an attempt to address the decentralization/centralization relationships to improve the links between the central and the local governments. The underlying aim is to provide a better structure to manage the diverse, independent and local IT-related projects and...conference paper 2006