TY - JOUR A1 - Pietsch, Wolfram A1 - Herzwurm, G. T1 - QFD for Customer-Focused Requirements Engineering / Herzwurm, G., Pietsch, W. JF - Proceedings : 8 - 12 September 2003, Monterey Bay, California, USA / sponsored by IEEE Computer Society Technical Council on Software Engineering (TCSE) ... In cooperation with ACM SigSOFT Y1 - 2003 SN - 0769519806 N1 - International Requirements Engineering Conference ; (11, 2003, Monterey, Calif.) SP - 330 EP - 338 PB - IEEE Computer Society CY - Los Alamitos, Calif. [u.a.] ER - TY - JOUR A1 - Pietsch, Wolfram T1 - Risk-based Deployment of Standard Software Rollout Processes - a pragmatic approach JF - QFD : transactions from the Eleventh Symposium on Quality Function Deployment, [June 12 - 18, 1999, Novi, Michigan] / QFD Institute Y1 - 1999 SN - 1889477117 N1 - Symposium on Quality Function Deployment ; (11, 1999, Novi, Mich.) Online unter: http://www.herzwurm.de/Publikationen/daten/lit/deployment.pdf SP - 349 EP - 359 PB - QFD Institute CY - Ann Arbor, Mich. ER - TY - BOOK A1 - Pietsch, Wolfram T1 - Software quality management III : [... held in Seville in April 1995] / [Third International Conference on Software Quality Management]. Ed.: M. Ross Y1 - 1995 SN - 1853123099 N1 - International Conference on Software Quality Management ; (3, 1995, Sevilla) PB - Computational Mechanics Publ. CY - Southampton [u.a.] ER - TY - JOUR A1 - Pietsch, Wolfram T1 - Customer-Oriented Specification and Evaluation of IT Service Level Agreements JF - Software process improvement : Elektronische Ressource : 12th European conference ; proceedings / EuroSPI 2005, Budapest, Hungary, November 9 - 11, 2005. Ita Richardson ... (ed.) Y1 - 2005 SN - 3-540-30286-7 N1 - Lecture notes in computer science ; 3792 ; EuroSPI <12, 2005, Budapest> SP - 83 EP - 94 PB - Springer CY - Berlin [u.a.] ER - TY - JOUR A1 - Pietsch, Wolfram T1 - IT Service Deployment JF - QFD : transactions from International Symposium on QFD 2007 - Williamsburg, the Nineteenth Symposium on Quality Function Deployment ; September 7 - 8, 2007, Williamsburg, VA ; [companion document to the Thirteenth International and Nineteenth North American Symposium on Quality Function Deployment (ISQFD'07)] / [organized and hosted by the QFD Institute] Y1 - 2007 SN - 1-889477-19-2 N1 - QFD 2007, 19th Symposium on Quality Function Deployment, Williamsburg, VA, US, Sep 7-8, 2007 SP - 203 EP - 212 PB - QFD Inst. CY - Ann Arbor, Mich. ER - TY - CHAP A1 - Pietsch, Wolfram T1 - A framework for strategic positioning of IT-products T2 - Software business : from physical products to software services and solutions : 4th International Conference on Software Business, ICSOB 2013; Potsdam; Germany; 11 June 2013 through 14 June 2013. (Lecture notes in business information processing ; 150) N2 - IT Products are viewed and managed differently depending on the perspectives and the stage within the life cycle. A model is presented that integrates different perspectives and stages serving as an aid for the analysis of business models and focused positioning of IT-products. Four generic business models are analysed with regard to the product management function in general and the positioning field for IT-products specifically: off-the-shelf (license), license plus service, project, and system service (incl. cloud computing). KW - Strategic Business Planning KW - IT Products KW - Business Models KW - Product Management Y1 - 2013 U6 - https://doi.org/10.1007/978-3-642-39336-5_11 SP - 102 EP - 116 PB - Springer CY - Berlin ER - TY - CHAP A1 - Pietsch, Wolfram T1 - A framework of quality function deployment T2 - Quality management / eds.: M. Ross ... (Software quality management ; 3,1) Y1 - 1995 SN - 1-85312-309-9 SP - 419 EP - 428 PB - Computational Mechanics Publ. CY - Southhampton ER - TY - JOUR A1 - Pietsch, Wolfram T1 - Augmenting voice of the customer analysis by analysis of belief JF - QFD-Forum Y1 - 2015 SN - 1431-6951 IS - 30 SP - 1 EP - 5 ER - TY - CHAP A1 - Pieronek, Lukas A1 - Kleefeld, Andreas ED - Constanda, Christian ED - Harris, Paul T1 - The Method of Fundamental Solutions for Computing Interior Transmission Eigenvalues of Inhomogeneous Media T2 - Integral Methods in Science and Engineering: Analytic Treatment and Numerical Approximations N2 - The method of fundamental solutions is applied to the approximate computation of interior transmission eigenvalues for a special class of inhomogeneous media in two dimensions. We give a short approximation analysis accompanied with numerical results that clearly prove practical convenience of our alternative approach. Y1 - 2019 SN - 978-3-030-16077-7 U6 - https://doi.org/10.1007/978-3-030-16077-7_28 SP - 353 EP - 365 PB - Birkhäuser CY - Cham ER - TY - JOUR A1 - Pieronek, Lukas A1 - Kleefeld, Andreas T1 - On trajectories of complex-valued interior transmission eigenvalues JF - Inverse problems and imaging : IPI N2 - This paper investigates the interior transmission problem for homogeneous media via eigenvalue trajectories parameterized by the magnitude of the refractive index. In the case that the scatterer is the unit disk, we prove that there is a one-to-one correspondence between complex-valued interior transmission eigenvalue trajectories and Dirichlet eigenvalues of the Laplacian which turn out to be exactly the trajectorial limit points as the refractive index tends to infinity. For general simply-connected scatterers in two or three dimensions, a corresponding relation is still open, but further theoretical results and numerical studies indicate a similar connection. KW - Interior transmission problem KW - Eigenvalue trajectories KW - Complex-valued eigenvalues Y1 - 2024 U6 - https://doi.org/10.3934/ipi.2023041 SN - 1930-8337 (Print) SN - 1930-8345 (Online) VL - 18 IS - 2 SP - 480 EP - 516 PB - AIMS CY - Springfield, Mo ER -