TY - CHAP A1 - Simon, Frank A1 - Steinbrückner, Frank A1 - Lewerentz, Claus T1 - Anpaßbare, explorierbare virtuelle Informationsräume zur Qualitätsbewertung großer Software-Systeme T2 - 3. Workshop Software Reengineering, Bad Honnef, 10./11. Mai 2001 Y1 - 2001 PB - Univ., Inst. für Informatik CY - Koblenz-Landau ER - TY - CHAP A1 - Simon, Frank A1 - Steinbrückner, Frank A1 - Lewerentz, Claus ED - Sousa, Pedro T1 - Metrics Based Refactoring T2 - Proceedings of the Fifth European Conference on Software Maintenance and Reengineering, 14 - 16 March 2001, Lisbon, Portugal Y1 - 2001 SN - 0-7695-1028-0 SP - 30 EP - 38 PB - IEEE Computer Society CY - Los Alamitos, Calif. [u.a.] ER - TY - CHAP A1 - Lewerentz, Claus A1 - Simon, Frank A1 - Steinbrückner, Frank A1 - Breitling, H. A1 - Lilienthal, C. A1 - Lippert, M. T1 - External Validation of a Metrics-Based Quality Assessment of the JWAM Framework T2 - Software-Messung und -Bewertung, Tagungsband Workshop der GI-Fachgruppe 2.1.10, 10./11. September 2001 an der Universität Kaiserslautern Y1 - 2001 SN - 3-8244-7592-8 SP - 32 EP - 49 PB - Dt. Univ.-Verl. CY - Wiesbaden ER - TY - CHAP A1 - Lewerentz, Claus A1 - Simon, Frank A1 - Steinbrückner, Frank T1 - CrocoCosmos Y1 - 2002 ER - TY - CHAP A1 - Lewerentz, Claus A1 - Simon, Frank T1 - Metrics-based 3D Visualization of Large Object-Oriented Programs N2 - In this paper a new approach for a metrics based software visualization is presented which supports an efficient and effective quality assessment of large object-oriented software systems. It is based on the combination of software metrics data with structure information to form a virtual information space. This information space is visualized using 3D graph structures that allow to represent in a uniform way many aspects and views on it. The layout approach for these graphs uses a generic similarity measure to calculate geometric distances between the graph nodes and a force-directed mapping into 3D space. A particular strength of the approach is that the resulting geometrical structures can be well interpreted with respect to the architecture and design quality of the analysed software. Such 3D visualizations have been used successfully in several case studies for the quality assessment of industrial C++/Java projects. Y1 - 2002 ER - TY - CHAP A1 - Grünewald, Uwe A1 - Ipsen, Detlev A1 - Kaltofen, Michael A1 - Karkuschke, Matthias A1 - Koch, Hagen A1 - Messner, Frank A1 - Schramm, Michael A1 - Schuster, Steffi A1 - Simon, Karl-Heinz A1 - Wehrle, Astrid A1 - Zwirner, Oliver T1 - Sustainable Water Resources Management and Regional Development in the Upper Spree River Basin Heavily Influenced by Lignite Open Pit Mining Y1 - 2002 PB - GSF Forschungszentrum für Umwelt und Gesundheit ER - TY - CHAP A1 - Beyer, Dirk A1 - Lewerentz, Claus A1 - Simon, Frank ED - Abran, Alain ED - Dumke, Reiner T1 - Impact of Inheritance on Metrics for Size, Coupling, and Cohesion in Object Oriented Systems T2 - New approaches in software measurement, 10th international workshop, proceedings, IWSM 2000, Berlin, Germany, October 4 - 6, 2000 Y1 - 2001 SN - 3-540-41727-3 SP - 1 EP - 17 PB - Springer CY - Berlin [u.a.] ER - TY - THES A1 - Simon, Frank T1 - Meßwertbasierte Qualitätssicherung : ein generisches Distanzmaß zur Erweiterung bisheriger Softwareproduktmaße KW - Softwarequalität KW - Softwarevermessung KW - Softwaremaße KW - Softwarewartung Y1 - 2001 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:co1-000000124 PB - Brandenburgische Techn. Univ. CY - Cottbus ER - TY - CHAP A1 - Ciolkowski, Marcus A1 - Heidrich, Jens A1 - Simon, Frank A1 - Radicke, Mathias T1 - Empirical results from using custom-made software project control centers in industrial environments T2 - Proceedings of the Second ACM-IEEE international symposium on Empirical software engineering and measurement, ESEM 2008, Kaiserslautern, Germany, Oktober 09-10, 2008 N2 - One means for institutionalizing project control, systematic quality assurance, and management support on the basis of measurement and explicit models is the establishment of so-called Software Project Control Centers. Nowadays many companies develop their own dashboards for project control or use off-the-shelf tools that provide a predefined functionality. It is not clear how to tailor an existing tool to the specific needs and goals. An engineering-like approach providing the methodological foundation is needed for systematically defining and applying project control mechanisms. "Soft-Pit" is a research project focusing on an improvement-oriented approach for setting up and applying project control mechanisms in a goal-oriented way and evaluating the practical benefits of such a control center. This article describes the results of industrial case studies conducted in the context of the project. Moreover, lessons learned are discussed, related work is described, and future work is presented. KW - Programming teams KW - Management KW - Measurement KW - Performance KW - Experimentation KW - SPCC KW - Case Study KW - Effectiveness KW - Cost KW - Softwaretechnik KW - Softwareleitstand KW - Softwaremetriken Y1 - 2008 UR - http://dl.acm.org/citation.cfm?id=1414004&picked=prox SP - 243 EP - 252 PB - ACM CY - New York ER - TY - GEN A1 - Müller, Felix A1 - Torger, Bernhard A1 - Allertz, Peter J. A1 - Jähnichen, Klaus A1 - Keßler, Stefan A1 - Müller, Martin A1 - Simon, Frank A1 - Salchert, Katrin A1 - Mäurer, Haike A1 - Pospiech, Doris T1 - Multifunctional crosslinkable itaconic acid copolymers for enzyme immobilization T2 - European Polymer Journal N2 - UV-Crosslinkable itaconic copolymers are developed to provide new multifunctional materials for coatings which combine crosslinkable functionalities and the possibility to immobilize enzymes. The polymer-immobilized enzymes were used for water treatment to decompose persistent organic molecules. Introduction of suitable comonomers allows tailoring the mechanical and chemical properties for special applications. Copolymers containing MMA and itaconic anhydride were chosen because of the formation of long-term stable anhydride functionalities. These anhydride functionalities are employed to attach enzymes covalently. 4-Benzoylphenyl methacrylate is used as comonomer for UV-initiated crosslinking. Terpolymers are successfully obtained by radical copolymerization in solution. The copolymers are compared to poly(ethylene-alt-maleic anhydride) [P(EMA)] often used with respect to enzyme immobilization, activity and hydrolytic stability. The hydrolysis stability of the copolymers against water is studied by ATR-FTIR spectroscopy. Thin films are prepared on glass substrates in a layer-by-layer procedure by spin-coating. The layer formation is monitored by ATR-FTIR spectroscopy. UV-crosslinking of the copolymer films is performed taking the optimal irradiation dose that avoids polymer degradation. ATR-FTIR spectroscopy verifies the coupling reaction between amino groups of the enzyme and the anhydride groups on the surface of the crosslinked polymer film. The syringaldazine (4-hydroxy-3,5-dimethoxybenzaldehyde azine) test and 2,2´-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS) assay demonstrate that the immobilized enzymes maintain their activities. The functional copolymers showed a significant effect in reduction of persistent organic pollutants in contaminated waste water. KW - ATR-FTIR spectroscopy KW - Crosslinking KW - Enzyme-immobilization KW - Itaconc acid KW - Methacrylate copolymer Y1 - 2018 U6 - https://doi.org/10.1016/j.eurpolymj.2018.03.014 VL - 102 SP - 47 EP - 55 ER -