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Budapest, Hungary

Korsaa M.,DELTA | Johansen J.,DELTA | Schweigert T.,Software AG | Vohwinkel D.,Software AG | And 3 more authors.
Journal of software: Evolution and Process | Year: 2013

Looking back to the last 10 years of SPI, we can see a rapid change of focus from models to people. Models like CMMI, SPICE, Information Technology Infrastructure Library (ITIL) or others still will remain useful. However, they do not have the power to create competitive advantage. What we see in all analysed approaches is that people really count. That competitive advantage has one important source in the commitment and the responsibility of people for their processes in terms of effectiveness, efficiency and results quality. And it has also a source in the people's attitude to reasonable changes. Even if the approaches of Hammer, Jacobson, the ImprovAbility Model, the SPI manifesto, the ECQA Scheme and the SPI manager qualification scheme seem to be different on the first view, they all agree on the relevance of people and their needs. © 2011 John Wiley & Sons, Ltd.

Molnar B.,Eotvos University of Budapest | Szabo G.,Dennis Gabor College | Benczur A.,Eotvos University of Budapest
Infocommunications Journal | Year: 2014

The application and introduction of ERP systems have become a central issue for management and operation of enterprises. The competition on market enforces the improvement and optimization of business processes at enterprises to increase their efficiency, effectiveness, and to manage better the resources outside of the company. The primary task of ERP systems is to achieve the before-mentioned objectives. For this reason the selection of a particular ERP system has a decisive effect on the future operation and profitability of the enterprise, i.e. the selection phase is highly relevant step within the introduction and implementation stage of an ERP system. The issues that are worth investigating are the criteria applied at the decision. The qualitative correlation between the size of enterprises, market position, etc. and the applied selection criteria for ERP systems could be analyzed as to whether which criteria are made use of at multinational enterprises or at SMEs. Our research is grounded in a literature review and case studies of everyday practice related to introduction, implementation and roll-out of ERP systems and it tries to provide answers for the above raised questions.

Kopacsi S.,Dennis Gabor College
3rd IEEE International Conference on Cognitive Infocommunications, CogInfoCom 2012 - Proceedings | Year: 2012

In our research we have examined and used 3D visualization of different activities (Incremental Sheet Forming, solving the Rubik's Cube) of our industrial robot, as well as we have applied the same interactive visualizations technique for multifunctional furniture. We have published our results on a 3D webpage that became a standalone branch of our research. © 2012 IEEE.

Markus F.,Budapest University of Technology and Economics | Gambar K.,Dennis Gabor College
International Journal of Theoretical Physics | Year: 2010

Two decades ago it was made the first steps to establish a really Hamiltonian description of field theory of dissipative transport processes in order to apply all of the tools of modern field theories for these kind of processes. The great breakthrough was to introduce such scalar potential fields for the measurable quantities-temperature, pressure, etc.-, by which the complete Lagrangian-Hamiltonian formalism could be developed. Later it has been managed to create the differential equation for the relativistic invariant heat propagation by the help of the scalar field, which field can generate a dynamical temperature immediately. In the present paper it is focused on a farther step in the Lorentz invariant thermal energy propagation. Now, the temperature field satisfies a covariant field equation of a (wave-like) thermal energy propagation with finite speed-less than the speed of light. In our previous works the connection has been clarified between this scalar field and the usual local equilibrium temperature including the classical Fourier's heat conduction. The existence of a dynamical phase transition between the two kinds of propagation, between a wave and a non-wave, i.e., a dynamical phase transition between a non-dissipative and a dissipative thermal process is also found. Presently, it is pointed out that the so-called Wheeler propagator can be obtained without any difficulty for this process inspite of the existence of the dynamical phase transition and it can be seen that the causality condition is completed at the same time. © 2010 Springer Science+Business Media, LLC.

Nacsa J.,Hungarian Academy of Sciences | Paniti I.,Budapest University of Technology and Economics | Kopacsi S.,Dennis Gabor College
2011 2nd International Conference on Cognitive Infocommunications, CogInfoCom 2011 | Year: 2011

Incremental Sheet Forming is an advanced manufacturing technology in the recent years. In a lot of cases the process requires the synchronized cooperation of two machines. The complex operation was modelled in a virtual environment, where the cyber objects were deeply connected with the real objects. The result of this virtual cooperation resulted some cognitive observation that is also published in this paper. © 2011 Scientific Assoc Infocomm.

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