Auflistung nach Autor:in "Winter, Andreas"
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- Zeitschriftenartikel11. Workshop Software-Reengineering (WSR 2009)(Softwaretechnik-Trends Band 29, Heft 2, 2009) Gimnich, Rainer; Kaiser, Uwe; Quante, Jochen; Winter, Andreas
- Zeitschriftenartikel15th European Conference on Software Maintenance and Reengineering(Softwaretechnik-Trends Band 30, Heft 3, 2010) Winter, Andreas
- Konferenzbeitrag20 Years of Software-Reengineering – A Résumé(Software archeology and the handbook of software architecture, 2008) Sneed, Harry M.This paper is an attempt to define what software reengineering is and what it has accomplished in the light of 20 years of practical application. The paper points out that reengineering is one of the many software maintenance activities, i.e. everything done with software once it has been put to use. Reengineering actions are devoted to improving the technical quality of existing software. By accepting this definition, it is possible to distinguish reengineering from other related activities performed on a software product after its first release such as reverse engineering, redocumentation, evolution and migration.
- Zeitschriftenartikel2nd Workshop Energy Aware Software-Engineering and Development (EASED@BUIS)(Softwaretechnik-Trends: Vol. 33, No. 2, 2013) Bunse, Christian; Gottschalk, Marion; Naumann, Stefan; Winter, Andreas
- Konferenzbeitrag3D Visualisation of continuous, multidimensional, meteorological Satellite Data(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Lutz, RichardTen years of earth observation by the MIPAS instrument aboard the European environmental satellite Envisat [1] led to a considerable amount of measurement and processed data, which has to be managed and visualized by powerful and flexible software tools. This paper gives an overview about new concepts, tools and methods for the 3D visualisation of continuous, multidimensional, meteorological Satellite Data, which are realised with WISA (Wissenschaftliches Informationssystem für die Atmosphärenforschung – Scientific Information System for atmospheric Research). A major goal of the visualisation is the recognition of correlations between different trace gas concentrations (e.g. ozone, chlorine nitrate, chlorofluorocarbons, etc.) and the visualisation of trace gas distributions where the main focus was laid on the polar areas.
- KonferenzbeitragA consumer-orientated Architecture for distributed Demand-Side-Optimization(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Dethlefs, Tim; Beewen, Dirk; Preisler, Thomas; Wolfgang, RenzDemand-Side-Management (DSM) is one of the key applications in the future smart grid, creating a new degree of control in order to reduce losses and fluctuations caused by volatile distributed energy resources (DERs). To integrate the consumer side, several approaches like flexible tariffs, have been proposed and tested. However, many of these approaches not have been adopted widely yet because of the needed sophisticated (and often expensive) command and control infrastructures or their impact on the user comfort. In this paper an architectural approach for a lightweight demand-side-application will be proposed. Utilizing methods of peer-to-peer (p2p) networks and abstraction patterns the architecture will be enabling consumers to form spontaneous demand-side optimization networks in order to optimize their load and to provide energy services to the Smart Grid of the future. Because of the decentralized characteristic of the architecture, the aggregation instance does not need detailed information of the optimization network, while the approach is scalable.
- KonferenzbeitragA coupled subsurface-flow and metabolism model to study the effects of solute fluxes in the hyporheic zone(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Notay, Kunwar Vikramjeet; Mendoza-Lera, Clara; Federlein, Laura L.; Molkenthin, FrankThe hyporheic zone and the streambed host a great part of the energy and material fluxes through river ecosystems. However, the role of heterogeneities in the hyporheic zone in metabolism is not clearly understood. This paper proposes a new way to approach the question by using a coupled subsurface-flow and metabolism model for investigating the role of heterogeneities in the hyporheic metabolism. Our results show that (i) our coupled model is feasible for investigating solute fluxes in the hyporheic zone under heterogeneous set-ups, and (ii) the incorporation of heterogeneities seems be of relevance for hyporheic metabolism estimations
- KonferenzbeitragA Data Center Simulation Framework Based on an Ontological Foundation(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Memari, Ammar; Vornberger, Jan; Marx Gómez, Jorge; Nebel, WolfgangThe IT-for-Green project aims at developing the next generation of Corporate Environmental Management Information Systems (CEMIS). Green IT being one important aspect of this, the ITfor- Green project seeks to support the analysis of a given data center situation and to support the simulation of alternative architectures to find ways to increase energy efficiency. To facilitate this, we develop a data center simulation framework, designed to be part of a larger CEMIS platform. This is achieved through a focus on flexibility, high interoperability and open standards. Flexibility is especially achieved by building the framework on top of an underlying data center ontology. This ontological approach allows us to derive many components of the framework from a single source, maintaining the ability to quickly adapt to future requirements.
- KonferenzbeitragA Data Classification to support Collaboration in an Enterprise Network(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Allam, Nabil; Mahmoud, TariqTo face contemporary environmental problems, we have to find every possible new way to use the available potentials of saving environmental and natural resources. The collaboration in environmental management networks is one of these ways that opens new alternatives for environmental systems. One of the main constraints to facilitate collaboration in a network is the ability to exchange information and data. However, most enterprises are not willing to give any data to other organizations in the sense that they give away corporate secrets. The purpose of this paper is to discuss how to facilitate the work of enterprise networks by developing a data classification method to solve the problem of data exchange between companies. This developed approach should help enterprises to trust collaborating with other companies, or more specifically methods that initiate interaction and support the development of trustful relationships.
- KonferenzbeitragA framework for assessing the energy efficiency of non-mechanised agricultural systems in developing countries(Proceedings of the 28th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2014) Mwambo, Francis Molua; Fürst, ChristineThere is a continuously growing global demand for agricultural products, including food, fodder and fuels that urges for reasons of ensuring a sustainable development innovative methods to assess the impact of agricultural management. Existing methods of energy efficiency analysis for agricultural systems take into account human labour and draft animal power as inputs and consider also land-use characteristics as factors affecting the production in systems in most developing African countries. However, most of these methods fail to address properly different scales in decision making, i.e. connecting the management planning level with regional development considerations. With this paper, we introduce an alternative method to assess the energy efficiency in agronomic land-use. Our work intends to conceive a comprehensive and scale sensitive assessment framework that supports consulting land-use, decision making, and policy planning.