Auflistung nach Autor:in "Dick, Markus"
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- ZeitschriftenartikelClassifying Green Software Engineering - The GREENSOFT Model(Softwaretechnik-Trends: Vol. 33, No. 2, 2013) Naumann, Stefan; Kern, Eva; Dick, MarkusStefan Naumann, Eva Kern Institute for Software Systems Environmental Campus Birkenfeld P.O. Box 1380, D-55761 Birkenfeld (s.naumann|e.kern)@umwelt-campus.de Markus Dick Sustainable Software Blog http://sustainablesoftware.blogspot.de sustainablesoftwareblog@gmail.com
- KonferenzbeitragEnhancing Software Engineering Processes towards Sustainable Software Product Design(Integration of Environmental Information in Europe, 2010) Dick, Markus; Naumann, StefanThe power consumption of ICT is still increasing. To date, it is not clear if the energy savings through ICT overbalance the energy consumption by ICT, or not. Where manifold efforts of Green IT address the environmental aspects of sustainability considering computer hardware, there is a lack of models, descriptions, or realizations in the area of computer software. In this paper, we propose a generic software development process enhancement that has the potential to integrate the consideration of sustainability aspects into arbitrary software development methodologies.
- KonferenzbeitragEnhancing Sustainability of the Software Live Cycle via a Generic Knowledge Base(Integration of Environmental Information in Europe, 2010) Fischer, Julia; Naumann, Stefan; Dick, MarkusInformation technology plays a double-edged part when facing the challenges of sustainable development: On the one hand IT can improve processes, dematerialize physical goods, etc. On the other hand, IT itself is consuming more and more energy and natural resources. In our paper, we present an approach for a generic knowledge database, which helps software developers, managers of data centres, users, and other actors within the hardware and software life cycle in producing, maintaining, and using more sustainable and “greener” software. In detail, we present a model for appropriate articles, and overall system architecture. With some user scenarios we demonstrate, how our system is working.
- KonferenzbeitragGreen Web Engineering - Measurements and Findings(EnviroInfo Dessau 2012, Part 2: Open Data and Industrial Ecological Management, 2012) Dick, Markus; Kern, Eva; Johann, Timo; Naumann, Stefan; Gülden, ChristianThe power consumption of Information and Communication Technology (ICT) is still increasing. In order to handle this problem, we can hereby distinguish between two directions: Green IT and Green by IT. Green IT means, how ICT itself can be more energy efficient. Green by IT means how we can improve energy efficiency in other fields with the help of ICT. In our paper we describe an approach regarding Green IT: How software and especially websites can be improved on the server side regarding their energy consumption. For example, caching and compression technologies, as well as decreased sizes of pictures can significantly reduce the network traffic. Here we give some suggestions and we present concrete measurement results, which show the differences in the induced energy consumption.
- KonferenzbeitragGreening software with continuous energy efficiency measurement(INFORMATIK 2013 – Informatik angepasst an Mensch, Organisation und Umwelt, 2013) Drangmeister, Jakob; Kern, Eva; Dick, Markus; Naumann, Stefan; Sparmann, Gisela; Guldner, AchimThe energy consumption of information and communication technology (ICT) is still increasing. Several solutions regarding the hardware side of Green IT exist, until now the software contribution to Green IT is not considered sufficiently apart from scientific research. In our paper, we discuss a new method of improving the energy efficiency of software during its development, by putting energy efficiency measurements into practice. Therefore, we measure and rate energy consumption and efficiency during the software development process, based upon software testing and Continuous Integration (CI).
- KonferenzbeitragIntegrating Aspects of Carbon Footprints and Continuous Energy Efficiency Measurements into Green and Sustainable Software Engineering(Proceedings of the 27th Conference on Environmental Informatics - Informatics for Environmental Protection, Sustainable Development and Risk Management, 2013) Kern, Eva; Dick, Markus; Drangmeister, Jakob; Hiller, Tim; Naumann, Stefan; Guldner, AchimThe energy consumption of information and communication technology (ICT) is still increasing. Even though, up to now, several solutions regarding the hardware side of Green IT exist, the software contribution to Green IT is not well investigated. In our paper, we discuss how to integrate some aspects of carbon footprint calculation into software development processes and we show how ongoing energy efficiency measurements can be established as an integral part of a software development project.
- KonferenzbeitragLabelling Sustainable Software Products and Websites: Ideas, Approaches, and Challenges(EnviroInfo & ICT4S, Conference Proceedings, 2015) Kern, Eva; Dick, Markus; Naumann, Stefan; Filler, AndreasThe awareness for software as an important player regarding the energy consumption caused by ICT steadily increased in the past years. The impact of software on the energy consumption is also more and more accepted by the research community under the umbrella of sustainability in general. Nevertheless, the end user is still only slightly or not addressed in the research activities regarding the whole energy consumption of software over its complete lifecycle. Also other stakeholders, e.g. administrators, designers, developers etc., are not in the focus of creating awareness for the aforementioned topics. In this contribution, we therefore focus on ideas, approaches, and challenges in developing a general-purpose labelling process for green and sustainable software products and websites. At first we provide a literature roundup, followed by the elaboration of requirements for the creation of a sustainability label for software products in general based on already existing and new approaches. On a first attempt, we furthermore concentrate on a labelling process for sustainable as well as green websites and sum up with a discussion followed by an outlook on our future work.
- KonferenzbeitragMeasurement and Rating of Software-induced Energy Consumption of Desktop PCs and Servers(Innovations in Sharing Environmental Observations and Information, 2011) Dick, Markus; Kern, Eva; Drangmeister, Jakob; Naumann, Stefan; Johann, TimoUp to now, the power consumption of ICT is still increasing. However, it is not clear whether or not energy savings through ICT overcompensate this increasing energy consumption. There are manifold efforts of Green IT addressing energy efficiency of computer hardware, but there is a lack of models, descriptions, or realizations in the field of computer software. In our paper, we present a method to measure and rate software-induced energy consumption of stand-alone applications on desktop computers as well as interactive transaction-based applications on servers. In both cases, realistic workloads are applied. Our test rig contains the tested system, an appropriate power meter, a workload generator, and a data evaluation system. Our measurement method is intended to support software developers, purchasers, administrators, and users in making informed decisions on software architecture and implementation as well as on software products they use or plan to use. As a proof of concept, we will describe two exemplary measurements that show the influence of software use on power consumption.