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Über dieses Buch

This book presents the latest findings and ongoing research in the field of green information systems as well as green information and communication technology (ICT). It provides insights into a whole range of cross-cutting concerns in ICT and environmental sciences and showcases how information and communication technologies allow environmental and energy efficiency issues to be handled effectively. Offering a selection of extended and reworked contributions to the 30th International Conference EnviroInfo 2016, it is essential reading for anyone wanting to extend their expertise in the area.

Inhaltsverzeichnis

Frontmatter

Design, Sustainability and ICT

Frontmatter

Analysis of Product Lifecycle Data to Determine the Environmental Impact of the Apple iPhone

Abstract
The increasing awareness of environmental protection, e.g. in the course of climate change, also affects products of the information and communication technology industry along their lifecycle. Companies have to consider how their processes and products can be designed correspondingly the expectations of their stakeholders as well as the public. Therefore they have to measure and analyze environmentally concerning data to improve their service provision. Using the Apple iPhone as an example this paper will execute such an analysis to evaluate its environmental impact. The data investigation is performed by reconditioning, analyzing and interpreting the data as well as giving potential causes and correlations with other datasets. Basing on the performed analysis a generalized model for the assessment of the environmental impact of ICT products can be enabled.
Hans-Knud Arndt, Chris Ewe

Sustainable Software Design for Very Small Organizations

Abstract
Very small organizations rarely use software to organize their business processes, because there are comparatively few known solutions for their particular problems. On the one hand, these software solutions are often associated with high costs and on the other hand, particularly very small organizations do not have enough resources to find suitable solutions. These organizations miss a lot of opportunities: Through the use of the Information and Communication Technique (ICT) business processes can be processed not only resource-efficient due to reduced paper consumption. The ICT also helps to make business processes more efficient. To find such a sustainable software solution for very small organizations, requirements are identified. To determine a structure for such software to document business processes, it is important to apply design aspects for the implementation of the software. A definition of such design aspects can be achieved by the properties of a sheet of paper, which help to organize business processes in very small organizations. By analogy of the dominant metaphor of paper we specify requirements of sustainable software design for very small organizations.
Stefanie Lehmann, Hans-Knud Arndt

Software Development Guidelines for Performance and Energy: Initial Case Studies

Abstract
Energy efficiency and -awareness are of growing importance in the field of information and communication technology. On the one hand, computing center aim for reducing their energy consumption in order to save money and improve their carbon footprint. On the other hand, mobile devices that are typically battery powered, have to be aware of their energy consumption in order to prolong their up-time while at the same time keeping a specific level of quality-of-service. Research has shown that especially software, running on a (mobile) device has a large impact onto the energy consumption of that device. Software developers should be aware of a software systems’ energy related cost and about means for optimizing them. Best practices, community-believed guidelines for improving the quality (e.g., performance, energy efficiency, usability, etc.) of software, are one way to do so. This paper evaluates the effects of selected guidelines by a small experiment series and within a larger, commercial product. Results show that by systematically applying selected programming guidelines, energy consumption can be reduced by 9 % and performance by 1 % in average.
Christian Bunse, Andre Rohdé

Green ICT Research and Challenges

Abstract
Green ICT is a young and pioneering field. Therefore, as often pointed out in the literature, studies evaluating the main research activities and the general direction of this new and continuously evolving research field are scarce and often incomplete. This study presents a quantitative analysis, through a systematic literature review, of the main activities, trends and issues that can be found in the Green ICT literature. The research reports the analysis of various characteristics of the studies gathered for this review, such as addressed type of effect and year of publication. It also led to the identification of the most recurrent issues of the research and development of Green ICT strategies. Finally, this study proposes a new category of effect (people awareness) that, even if often addressed by the field, is not included in current Green ICT frameworks.
Roberto Verdecchia, Fabio Ricchiuti, Albert Hankel, Patricia Lago, Giuseppe Procaccianti

Some Aspects of Using Universal Design as a Redesign Strategy for Sustainability

Abstract
Sustainability is something that unites humankind and the important 2015 UN Climate Change Conference manifested this and was described by many as our last chance. A shifting towards sustainability through design is a challenge for managers and policymakers of organizations since the existing system or product could be complex and may have difficulty to adopt such a shift. This paper explores how organizations and their designers and developers could benefit from having a predictable process to follow for conducting such a shift, since numerous challenges are associated with costs and revenues. While universal design (UD) is a design philosophy closely associated with the sustainable design, an advanced perspective of UD could be implied as a redesign strategy for existing design and may be used as a radical design and innovation strategy for sustainability. In this paper, some of the aspects of UD as a redesign strategy for sustainability are addressed. Based on the previous theoretical frameworks, a UD approach for redesigning towards sustainability was formulated and discussed.
Moyen M. Mustaquim, Tobias Nyström

Disaster Management for Resilience and Public Safety

Frontmatter

Development of Web Application for Disaster-Information Collection and Its Demonstration Experiment

Abstract
In the event of a devastating earthquake, a large number of streets will be damaged and/or blocked by collapsed buildings, and the use of emergency vehicles is expected to be paralyzed and unavailable. It is, therefore, important to quickly collect and utilize disaster-information for mitigation. We develop a Web application for collecting and sharing disaster-information collected by users in real time. Furthermore, we demonstrate that the system can provide effective information in real time for reducing the damage of disaster, by performing a demonstration experiment and a simulation carried out by assuming a devastating earthquake in densely built-up wooden residential area in Tokyo.
Toshihiro Osaragi, Ikki Niwa, Noriaki Hirokawa

Social Media Resilience During Infrastructure Breakdowns Using Mobile Ad-Hoc Networks

Abstract
Social media and instant messaging services are nowadays considered as important communication infrastructures on which people rely on. However, the exchange of content during breakdowns of the underlying technical infrastructures, which sometimes happens based on environmental occurrences, is challenging. Hence, with this paper, we examine the resilience of social media during breakdowns. We discuss communication options and examine ad-hoc functionality for the exchange of social media data between different actors in such cases. To address this, we have developed a concept, which makes use of mobile ad-hoc networks (MANETs) for the spontaneous exchange of information with smartphones. We implemented our concept as the mobile application Social Offline Map (SOMAP) and evaluated it within two iterations (1.0 and 2.0). Finally, we discuss our contribution within the context of related work and the limitations of our approach.
Christian Reuter, Thomas Ludwig, Marc-André Kaufhold, Julian Hupertz

Collection and Integration of Multi-spatial and Multi-type Data for Vulnerability Analysis in Emergency Response Plans

Abstract
Public health emergencies, whether natural or manmade, require a timely and well planned response from the local health authorities to mitigate the economic and human loss. Creation of well-defined service areas with Points of Dispensing (POD) facilities for providing medical or other care to the population within these areas is a widely accepted approach. However, not every individual may have equal access to the POD or the resources available at the POD due to various social, behavioral, cultural, and economic or health disparities. Therefore, a realistic and working response plan must provide ways to address these access disparities associated with each POD. The creation of such a response plan is a data intensive problem and requires demographic, spatial, transportation and resource data at different geographic levels. This paper demonstrates the collection of these data from disparate sources and their integration to analyze vulnerabilities in emergency response plans. The variety and volume of the required data and the manipulation process faced challenges of big data.
Harsha Gwalani, Armin R. Mikler, Suhasini Ramisetty-Mikler, Martin O’Neill

EPISECC Common Information Space: Defining Data Ownership in Disaster Management

Abstract
This paper provides a summary of the EPISECC consortium decisions taken when developing a common information space with respect to data sharing in the field of public protection and disaster relief. After explaining why defining data flows and design process in the EPISECC is important, the paper introduces a high-level overview of the EPISECC Common Information Space (CIS). Additionally, the paper explores the CIS user requirements and software architecture. To attain the main objective of this paper and to provide an operational overview of the EPISECC CIS, the paper defines a methodology to map data flows within the CIS and examines the basic functionality of the proposed system.
Gerhard Zuba, Lina Jasmontaite, Uberto Delprato, Georg Neubauer, Alexander Preinerstorfer

Energy Systems

Frontmatter

Integrating Social Acceptance of Electricity Grid Expansion into Energy System Modeling: A Methodological Approach for Germany

Abstract
Present energy system models are mainly based on techno-economical input parameters whereas social or political factors are neglected. This paper presents an approach to include social acceptance in energy system modeling, focusing on electricity transmission grid expansion projects in Germany. Qualitative as well as quantitative research techniques were applied: An analysis to quantify social acceptance was developed and implemented for 19 German districts (Landkreise) and acceptance-based delay assumptions for all German districts were derived. The dimension of social acceptance was integrated through years of delay. On the basis of assumed delays, different electricity grid expansion scenarios could be created. The results show that low delays can only be expected in regard to a few projects in Schleswig-Holstein. Moreover, the findings emphasize the importance of a commitment to grid expansion projects on the part of regional governments.
Karoline A. Mester, Marion Christ, Melanie Degel, Wolf-Dieter Bunke

Dynamic Portfolio Optimization for Distributed Energy Resources in Virtual Power Plants

Abstract
The aggregation of distributed energy resources in virtual power plants (VPPs) is a feasible approach to overcome entry barriers for energy markets like, e.g., the European Power Exchange SE (EPEX SPOT SE). An increasing number of energy supply companies offer the integration of decentralized units in VPPs aiming to achieve the maximum profit by trading the power produced by the VPP at energy markets. However, the coordination of the generation units’ operational modes (operation schedule) within a VPP as well as the selection of offered market products (product portfolio) are optimization problems that are mutually dependent. In this contribution a method is proposed that allows automating both the optimized composition of the product portfolio and the determination of the matching operation schedule for the VPP, in terms of profit maximization. Application example of the method is the EPEX SPOT SE day-ahead market. The concept of the approach can be roughly described as follows: First of all, machine learning techniques are used to predict the market prices for the trading day. Then, the market forecast is used in combination with feasible schedule samples from the generation units as input for the optimization process. During the optimization a hybrid approach comprising heuristic algorithms, such as simulated annealing or tabu search, and linear optimization is applied. The approach is evaluated using historical market data and intricate simulation models of generation units.
Stephan Balduin, Dierk Brauer, Lars Elend, Stefanie Holly, Jan Korte, Carsten Krüger, Almuth Meier, Frauke Oest, Immo Sanders-Sjuts, Torben Sauer, Marco Schnieders, Robert Zilke, Christian Hinrichs, Michael Sonnenschein

Distributed Power Management of Renewable Energy Resources for Grid Stabilization

Abstract
To increase the share of distributed energy resources (DER), they need to provide grid supporting ancillary services. In order to fulfill large energy products, virtual power plants (VPP) aggregate many small DER. In this paper we present an agent-based approach to the optimization problem of scheduling the DER of a VPP. We compare our approach which uses a evolutionary algorithm to one that uses a mathematical solver. When comparing the two approaches we found that our approach approximates the optimal solution well. The central benefit of our approach is that it scales better wrt. the VPP size. The increased scalability opens the ancillary services market to VPPs that aggregate more and smaller DERs.
Bengt Lüers, Marita Blank, Sebastian Lehnhoff

Proposing an Hourly Dynamic Wind Signal as an Environmental Incentive for Demand Response

Abstract
Demand Response (DR) is expected to play a crucial role in balancing supply and demand in future smart grids with increased proportion of electricity from renewable sources. However, previous studies on price-based DR programs have shown that there is a substantial need to strengthen the incentive models in order to achieve sufficient end-user response. In addition, recent studies are starting to explore alternative incentives based on environmental performance as a support to dynamic pricing tariffs. In this paper, we investigate in the potential of using a dynamic wind signal, reflecting the hourly variations in wind power generation, as an environmental incentive for load shift in DR programs. A wind signal is constructed based on Swedish electricity generation data for 2014, and intraday and seasonally patterns of wind power generation are analyzed with respect to hourly electricity spot prices. The results show that a wind signal is supportive to the economic incentive of a dynamic price signal to stimulate intraday load shift by end-use customers; shifting electricity consumption from hours of high price and low wind power generation to hours of low price and high wind power generation, leading to both consumer cost-savings and reduced climate impact in the long term.
Anders Nilsson, Nils Brandt

Energy System Modelling—Barriers, Challenges and Good Practice in Open Source Approaches

Frontmatter

Wind Energy Scenarios for the Simulation of the German Power System Until 2050: The Effect of Social and Ecological Factors

Abstract
Models of future energy systems and the development of underlying energy scenarios contribute to an answer on the question how a transformation of the energy system can be implemented. Although energy system modelling has a wide influence, the field lacks the consideration of local ecological and societal concerns, such as acceptance issues. In this paper, a methodology is developed to integrate social and ecological aspects concerning wind energy into the distribution of future wind energy capacities in Germany. Based on the calculated potential siting area (white area), an algorithm was developed to site different types of wind energy plants in the available area. Two wind expansion scenarios have been developed: one distributing future wind capacities according to technical and economic conditions (economic scenario), and the other based on the regional burden level resulting from wind energy plants (balanced scenario). The development of the burden level as a socio-ecological factor enabled the siting of wind turbines according to an equal burden level in all German districts (Landkreise). It was shown, that this equal distribution led to a shift of capacities from the north-west to the south-east compared to the economic approach.
Marion Christ, Martin Soethe, Melanie Degel, Clemens Wingenbach

AC Power Flow Simulations within an Open Data Model of a High Voltage Grid

Abstract
The development of transparent and reproducible electricity grid models poses a scientific challenge, mainly due to a lack of data transparency in grid economy. This paper presents a modelling method based on Open Data and Open Source. It is focused on a model of the high voltage grid of the German federal state Schleswig-Holstein. The developed model enables to perform static AC power flow simulations. Topological OpenStreetMap information is combined with literature-based assumptions of typical line data. Generation capacities were assigned to the grid buses using freely available registers. The demand was allocated to these buses using the correlating distribution of population. The output of the AC power flow simulations respectively bus voltages and line currents for different worst-case scenarios are presented, analysed and discussed. The results show the potential of scientific electricity grid modelling using Open Data and Open Source. Realistic grid congestion within the high voltage grid of Schleswig-Holstein was identified, providing a basis for further discussion. For a comprehensive validation of the simulated results relevant data need to be opened for the public.
Ulf Philipp Müller, Ilka Cussmann, Clemens Wingenbach, Jochen Wendiggensen

Sustainable Mobility

Frontmatter

Empirical Study of Using Renewable Energies in Innovative Car-Sharing Business Model “in Tandem” at the University of Hildesheim

Abstract
The renewable energy is becoming an integral part for the electric vehicle charging station to reduce greenhouse gases. The combination of this clean technology with appropriate business models reinforce the positive impact on the environment. In this paper we present empirical study of photovoltaic charging system used in a new car-sharing business model “in Tandem” implemented at the University of Hildesheim under the project name e2work. The data analyzed from photovoltaic (PV) over the period of one year, exhibits an interesting insight into the renewable energies supply of electric vehicles under preset conditions of the business model and thus helps to dimension an appropriate size and storage capacity of a photovoltaic system considering different weather conditions and mobility demands. It ensures the quick transferability and easy implementation of both the business model and the appropriate infrastructure to any place.
Mohsan Jameel, Olexander Filevych, Helmut Lessing

Trends in Mobility: A Competitive Based Approach for Virtual Mobility Providers to Participate in Transportation Markets

Abstract
Mobility is necessary to participate on day-to-day life, but comes along with negative implications on our environment. A change in our mobility behavior caused by the growing digitalization and arise of new mobility services is essential to reduce the environmental impact of our mobility. To achieve such goal, new services with a strengthened competition has to be established. In addition, sharing of workforce and operating supplies between companies are addressed to adopt new business models. B2B sharing, including occasional workers, has huge potential to generate new services and business models, especially in the service sector. The described approach of a mobility broker provides such a tool for sharing between businesses, but also between businesses and occasional working persons in the field of mobility services.
Alexander Sandau, Jorge Marx Gómez, Benjamin Wagner vom Berg

Life Cycle Assessment

Frontmatter

Regionalized LCI Modeling: A Framework for the Integration of Spatial Data in Life Cycle Assessment

Abstract
Life Cycle Assessment (LCA), the most prominent technique for the assessment of environmental impacts of products, typically operates on the basis of average meteorological and ecological conditions of whole countries or large regions. This limits the representativeness and accuracy of LCA, particularly in the field of agriculture. The production processes associated with agricultural commodities are characterized by high spatial sensitivity as both inputs (e.g. mineral and organic fertilizers) and the accompanying release of emissions into soil, air and water (e.g. nitrate, dinitrogen monoxide, or phosphate emissions) are largely determined by micro-spatial environmental parameters (precipitation, soil properties, slope, etc.) and therefore highly context dependent. This spatial variability is vastly ignored under the “unit world” assumption inherent to LCA. In this paper, we present a new calculation framework for regionalized life cycle inventory modeling that aims to overcome this inherent limitation. The framework allows an automated, site-specific generation and assessment of regionalized unit process datasets. We demonstrate the framework in a case study on rapeseed cultivation in Germany. The results from the research are (i) a framework for generating regionalized data structures, and (ii) a first examination of the significance of further use cases.
Juergen Reinhard, Rainer Zah, Lorenz M. Hilty

Open Calculator for Environmental and Social Footprints of Rail Infrastructures

Abstract
In EU27 0.2 % of global emissions correspond to rail transport. Infrastructure supposes 28 % of these emissions, half of them caused during construction. This shows the high environmental impact of these activities. Life cycle assessment (LCA) techniques combined with intelligent data analysis improves sustainability of railway infrastructure construction processes as a whole, considering environmental, economic and social aspects. The goal is the development of methodologies and tools to optimize decision making process, reducing carbon and water footprints of railway infrastructure construction projects from their earliest stages, i.e. design and planning processes. Environmental and social impact of most relevant tasks have been reviewed and analyzed in order to set the impact of railway networks construction processes. Multi-objective optimization has been performed to find a trade-off solution for project units scheduling. A tool has been developed from this information compilation, providing selected specific footprint values and environmental indicators as open data to the community.
Francisco Barrientos, Gregorio Sainz, Alberto Moral, Manuel Parra, José M. Benítez, Jorge Rodríguez, Carlos Martínez, Francisco Campo, Rubén Carnerero

Health Systems

Frontmatter

A Computational Intelligence Approach to Diabetes Mellitus and Air Quality Levels in Thessaloniki, Greece

Abstract
We employ Computational Intelligence (CI) methods to investigate possible associations between air pollution and Diabetes Mellitus (DM) in Thessaloniki, Greece. Models are developed for describing key DM parameters and for identifying environmental influences to patient status. On this basis new, more accurate models for the estimation of renal function levels are presented while a possible linkage is indicated concerning disease parameters and the quality of the atmospheric environment.
Kostas Karatzas, Vassiliki Dourliou, Nikolaos Kakaletsis, Nikolaos Katsifarakis, Christos Savopoulos, Apostolos I. Hatzitolios

Aggregation and Measurement of Social Sustainability and Social Capital with a Focus on Human Health

Abstract
This paper addresses theoretical differences between the perceived content of social sustainability and different socially attributed capital stocks, as for example, rather transaction oriented so called social capital, human capital or societal capital. It does so, by mapping different aspects from existing capital approaches to social sustainability, in order to resolve theoretical misconceptions. In addition, the review is intended to highlight different approaches for the measurement and aggregation of social aspects. Consequently the balance within sustainability approaches is addressed and strengthened by elaborating ways to formalize the social perspective. Furthermore, technical solutions considering the resulting impact assessment of social aspects are discussed and in order to demonstrate the significance of the presented ideas, an own application of a threshold based aggregation method, in a manufacturing simulation software, is presented.
Andi H Widok, Volker Wohlgemuth

Optimal Noise Filtering of Sensory Array Gaseous Air Pollution Measurements

Abstract
One of the fundamental components in assessing air quality is continuous monitoring. However, all measuring devices are bound to sensing noise. Commonly the noise is assumed to have zero mean and, thus, is removed by averaging data over temporal windows. Generally speaking, the larger the window, the better the noise removal. This operation, however, which corresponds to low pass filtering, might result in loss of real abrupt changes in the signal. Therefore, the need arises to set the window size so it optimally removes noise with minimum corruption of real data. This article presents a mathematical model for finding the optimal averaging window size. The suggested method is based on the assumption that while real measured physical phenomenon affects the measurements of all collocated sensors, sensing noise manifests itself independently in each of the sensors. Hence, the smallest window size which presents the highest correlation between the collocated sensors, is deemed as optimal. The results presented here show the great potential of the method in air quality measurements.
Barak Fishbain, Shai Moshenberg, Uri Lerner

Frameworks, Platforms, Portals

Frontmatter

Generic Web Framework for Environmental Data Visualization

Abstract
The Web and the growing popularity of Internet of Things show a large need for data visualization. This paper presents both a concept and an implemented prototype for a framework that supports a user in creating data visualizations on the Web. The concept is based on a microservice architecture using lightweight REST based service interfaces for communication. The prototype is evaluated using environmental data gathered by the State Office for the Environment, Measurements and Nature Conservation of the Federal State of Baden-Württemberg (LUBW). The main advantages of the framework are high customizability and no requirements for programming skills for using a large part of the framework.
Eric Braun, Clemens Düpmeier, Daniel Kimmig, Wolfgang Schillinger, Kurt Weissenbach

Creating a Data Portal for Small Rivers in Rostock

Abstract
In the context of the project KOGGE an Open-Source Spatial data portal based on GeoNetwork is being developed. Firstly, this portal supports the project-internal data exchange in an OGC and INSPIRE conform way. Secondly, it will be used for civic participation. With the integration of thesauri there is a comfortable data search interface available. To animate users to contribute to the portal the effort of data-adding is reduced massively using metadata templates. Furthermore, these templates guarantee the compliance with ISO standards for spatial data. To avoid duplicate datasets from other spatial data portals the GeoNetwork harvesting technology is used. The portal also offers the possibility to view and edit spatial data by making use of web services (WMS, WFS and WPS). The portal is also used to involve the citizens of Rostock in the planning and management process of urban waters. The user will be able to view project results and comment actual hydrological developments. Also an integration of volunteered geographic information with social media is planned.
Sebastian Hübner, Ferdinand Vettermann, Christian Seip, Ralf Bill

Convergent Infrastructures for Municipalities as Connecting Platform for Climate Applications

Abstract
Since topics such as climate protection come more and more in focus to municipalities, as they are in the role to implement related processes, technical support systems in this area are powerful tools. The most obvious requirement is the implementation of a monitoring infrastructure, which helps to measure the current state of energy consumption in buildings, properties and far beyond, focusing on various sectors such as industry, mobility, waste, etc. Apart, there are requirements and connected technologies and solutions in the fields of Ambient Assisted Living or Smart Home, which can be considered separately from the infrastructure perspective. But, in future, digital services will continuously grow together, simply by the need of various requirements for data exchange in many use cases. In the work at hand we show that in certain areas topics such as IoT in energy management, Ambient Assisted Living or Smart Home solutions should not be considered as separate platforms, but as convergent building blocks of a connected infrastructure landscape. In the context of municipal climate protection, this approach is illustrated in an example case study by presenting a central platform, which allows municipal energy management in conjunction with other services. The development is illustrated based on an innovative software environment that brings the idea in productive application.
Jens Heider, Jörg Lässig

Others

Frontmatter

ICT Support of Environmental Compliance—Approaches and Future Perspectives

Abstract
The obligation to conform to environmental regulations requires from companies a set of diverse tasks. A classification of these tasks into central tasks, collaborative tasks, and departmental tasks is proposed and corresponding examples are described. Then, an overview is given of state-of-the-art ICT support approaches for central tasks that are usually performed by cross-departmental compliance managers. The overview includes traditional ICT-support approaches but also advanced approaches that attempt to offer smart and active assistance to compliance managers. Furthermore, the future perspective of ICT support approaches for compliance management are described considering recent ICT advancements.
Heiko Thimm

Communicating Environmental Issues of Software: Outline of an Acceptance Model

Abstract
During the last years, the research activities regarding software and its environmental impacts could find their way into the field of “Green IT”. Thus, researchers became aware of the fact that software is one of the drivers of the energy consumption by ICT. However, the awareness for these aspects could be much higher—especially in the non-scientific area. On the one side, software developers should be aware of green strategies of software engineering. On the other side, those using the products need to be responded to the effects of using ICT products onto the environment. One idea to transfer the environmental effects of software into a social issue is to create an eco-label for software products. Next to defining criteria, such a label could be laid on, and methods to evaluate software products, it seems to be helpful to identify aspects influencing the acceptance of a certification for green software products. In this context, acceptance means taking the eco-label into account while searching for new software. Hence, the following paper aims at identifying those aspects by applying the Technology Acceptance Model (TAM 2) to the specific case of labelling green software products. We will present a first version of an acceptance model for a label for green software products. It is still work in-progress and needs to be evaluated as a next step. Generally, the aim is to create a tool that can be used to develop an eco-label for software products that will be strongly accepted.
Eva Kern

Partial Optimization of Water Distribution System Accounting for Multiobjective System Safety

Abstract
The paper presents an application of an evolutionary multi-objective optimization method in the estimation a Pareto optimal set of solutions of pipe replacement schedule. An optimization task is a problem with total investment cost, system entropy, hydraulic reliability and water losses as the objective functions. The paper shows that it is possible to optimize a part of a water distribution system without a deterioration of the crucial parameters in the rest of it, which also results in reduction of a computational complexity. Next, the paper presents how to select the pipes that have to be replaced by application of specific coding of decision variables. The results, based on real life example shows that the method is able to identify the pay-off surface characteristic between the proposed objectives.
Marcin Stachura

Towards Environmental Analytics: DPSIR as a System of Systems

Abstract
DPSIR (Driving forces, Pressures, States, Impacts, Responses) is a framework addressing the needs of environmental data reporting and assessment, extensively exploited by the European Union, its Member States and associated countries. The DPSIR framework does not model the environment, however it implies a systems model. Making such model explicit allows users to better understand the semantics of the five DPSIR components, therefore improving the harmonization and quality of the reported data, in particular in order to process them as Big Data. To such purpose, the tools provided by the systems theory are useful, specifically the system-of-systems (SoS) point of view. On such basis, a conceptual model of the relationships between the constituent systems of the socio-ecological system (SES) is proposed. As a result of such analysis some possible evolutions of DPSIR are envisaged, in terms of expanded and refined environmental data flows. Such evolutions aim to build a better integrated environmental knowledge base, as a prerequisite to a wider exploitation of analytics for the relevant decision processes and management activities.
Corrado Iannucci, Michele Munafò, Valter Sambucini
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