This book presents 3D3C platforms - three-dimensional systems for community, creation and commerce. It discusses tools including bots in social networks, team creativity, privacy, and virtual currencies & micropayments as well as their applications in areas like healthcare, energy, collaboration, and art. More than 20 authors from 10 countries share their experiences, research fi ndings and perspectives, off ering a comprehensive resource on the emerging fi eld of 3D3C worlds. The book is designed for both the novice and the expert as a way to unleash the emerging opportunities in 3D3C worlds. This Handbook maps with breadth and insight the exciting frontier of building virtual worlds with digital technologies. David Perkins, Research Professor, Harvard Graduate School of Education This book is from one of the most adventurous and energetic persons I have ever met. Yesha takes us into new undiscovered spaces and provides insight into phenomena of social interaction and immersive experiences that transform our lives. Cees de Bont, Dean of School of Design & Chair Professor of Design, School of Design of the Hong Kong Polytechnic University When you read 3D3C Platforms you realize what a domain like ours -- 3D printing -- can and should do for the world. Clearly we are just starting. Inspiring.David Reis, CEO, Stratasys Ltd This book provides a stunning overview regarding how virtual worlds are reshaping possibilities for identity and community. Th e range of topics addressed by the authors- from privacy and taxation to fashion and health care-provide a powerful roadmap for addressing the emerging potential of these online environments. Tom Boellstorff , Professor, Department of Anthropology, University of California, Irvine Handbook on 3D3C Platforms amassed a unique collection of multidisciplinary academic thinking. A primer on innovations that will touch every aspect of the human community in the 21st century. Eli Talmor, Professor, London Business School

Polymers, main components of plastics and rubbers, are being discarded in increasing quantities. But this waste can also be considered as plastic gold'. Public concern, coupled with the inherent value of the material, means that recycling is imperative. The present book presents a survey of current knowledge in the form of case studies, including current legal and educational issues. Topics covered also include regulation and practice in NATO countries, the economics of recycling, the reprocessing of single polymers and mixtures, and future prospects and strategies. Audience: Vital reading for all polymer scientists, technicians and engineers.

The book Multimedia for Accessible Human Computer Interfaces is to be the first resource to provide in-depth coverage on topical areas of multimedia computing (images, video, audio, speech, haptics, VR/AR, etc.) for accessible and inclusive human computer interfaces. Topics are grouped into thematic areas spanning the human senses: Vision, Hearing, Touch, as well as Multimodal applications. Each chapter is written by different multimedia researchers to provide complementary and multidisciplinary perspectives. Unlike other related books, which focus on guidelines for designing accessible interfaces, or are dated in their coverage of cutting edge multimedia technologies, Multimedia for Accessible Human Computer Interfaces takes an application-oriented approach to present a tour of how the field of multimedia is advancing access to human computer interfaces for individuals with disabilities. Under Theme 1 "Vision-based Technologies for Accessible Human Computer Interfaces", multimedia technologies to enhance access to interfaces through vision will be presented including: "A Framework for Gaze-contingent Interfaces", "Sign Language Recognition", "Fusion-based Image Enhancement and its Applications in Mobile Devices", and "Open-domain Textual Question Answering Systems". Under Theme 2 "Auditory Technologies for Accessible Human Computer Interfaces", multimedia technologies to enhance access to interfaces through hearing will be presented including: "Speech Recognition for Individuals with Voice Disorders" and "Socially Assistive Robots for Storytelling and Other Activities to Support Aging in Place". Under Theme 3 "Haptic Technologies for Accessible Human Computer Interfaces", multimedia technologies to enhance access to interfaces through haptics will be presented including: "Accessible Smart Coaching Technologies Inspired by Elderly Requisites" and "Haptic Mediators for Remote Interpersonal Communication". Under Theme 4 "Multimodal Technologies for Accessible Human Computer Interfaces", multimedia technologies to enhance access to interfaces through multiple modalities will be presented including: "Human-Machine Interfaces for Socially Connected Devices: From Smart Households to Smart Cities" and "Enhancing Situational Awareness and Kinesthetic Assistance for Clinicians via Augmented-Reality and Haptic Shared-Control Technologies".

A comprehensive, systematic approach to multimedia database management systems. It presents methods for managing the increasing demands of multimedia databases and their inherent design and architecture issues, and covers how to create an effective multimedia database by integrating the various information indexing and retrieval methods available. It also addresses how to measure multimedia database performance that is based on similarity to queries and routinely affected by human judgement. The book concludes with a discussion of networking and operating system support for multimedia databases and a look at research and development in this dynamic field.

Despite the significance and potential benefits of data-exchange standards, a void remains in literature of a research publication dedicated to its barriers and critical success factors. ""Data-Exchange Standards and International Organizations: Adoption and Diffusion"" establishes factors related to the implementation and dissemination of data-exchange standards. A cutting-edge reference source written by an international collaboration of field experts, this book covers advanced topics such as product life cycle support, IT standardization, and innovation- and adopter-centric data analysis.

Inform your own analyses by seeing how one of the best data analysts in the world approaches analytics problems Analytics Stories: How to Make Good Things Happen is a thoughtful, incisive, and entertaining exploration of the application of analytics to real-world problems and situations. Covering fields as diverse as sports, finance, politics, healthcare, and business, Analytics Stories bridges the gap between the oft inscrutable world of data analytics and the concrete problems it solves. Distinguished professor and author Wayne L. Winston answers questions like: Was Liverpool over Barcelona the greatest upset in sports history? Was Derek Jeter a great infielder What's wrong with the NFL QB rating? How did Madoff keep his fund going? Does a mutual fund's past performance predict future performance? What caused the Crash of 2008? Can we predict where crimes are likely to occur? Is the lot of the American worker improving? How can analytics save the US Republic? The birth of evidence-based medicine: How did James Lind know citrus fruits cured scurvy? How can I objectively compare hospitals? How can we predict heart attacks in real time? How does a retail store know if you're pregnant? How can I use A/B testing to improve sales from my website? How can analytics help me write a hit song? Perfect for anyone with the word "analyst" in their job title, Analytics Stories illuminates the process of applying analytic principles to practical problems and highlights the potential pitfalls that await careless analysts.

This Festschrift in honour of Paul Deheuvels' 65th birthday compiles recent research results in the area between mathematical statistics and probability theory with a special emphasis on limit theorems. The book brings together contributions from invited international experts to provide an up-to-date survey of the field. Written in textbook style, this collection of original material addresses researchers, PhD and advanced Master students with a solid grasp of mathematical statistics and probability theory.

1.1 Was ist Typographie?.- 1.2 Typographie als Handwerk.- 1.3 Die Schrift.- Schrift.- 2.1 Das Schriftzeichen.- 2.2 Zeichenmasse.- 2.3 Serifen.- 2.4 Das einzelne Zeichen (die Letter).- 2.5 Schrifteneinteilung.- 2.6 Schriftnamen innerhalb einer Schnittfamilie.- 2.7 Spezialzeichen und Spezialschnitte.- 2.8 Laufweiten, Zeichenabstande.- 2.8.1 Unterschneiden.- 2.8.2 Ligaturen.- 2.9 Schriftauszeichnung.- 2.10 Wortabstande.- 2.11 Zeilenabstand und Durchschuss.- 2.12 Satzausrichtung.- 2.13 Initialen.- 2.14 Formsatz.- Massangaben in der Typographie.- 3.1 Typographische Masseinheiten.- 3.1.1 Kegel- und Versalhoehen.- 3.1.2 Massangaben im DTP.- 3.1.3 Weitere typographische Masse.- Der Satzspiegel.- 4.1 Proportionen der Seite.- 4.2 Festlegen des Satzspiegels.- 4.2.1 Stege beim Satzspiegel.- 4.2.2 Gestaltungsraster.- 4.3 Stilelemente im Satzspiegel.- 4.3.1 Schriftgroessen.- 4.3.2 Absatzuntergliederung.- 4.3.3 Grauwert einer Seite.- 4.3.4 Fussnoten und Marginalien.- 4.4 Feinkorrekturen.- 4.4.1 Absatzumbruch.- 4.4.2 Worttrennungen.- 4.4.3 AEsthetikprogramme.- Die Schrift zum Text.- 5.1 Aussage einer Schrift.- 5.2 Werkschriften.- 5.3 UEberschriften / Headlines.- 5.4 Welche Schrift zu welchem Zweck?.- 5.5 Mischen von Schriften.- 5.6 Ausnahmen.- Schreibregeln.- 6.1 Zahlensatz.- 6.2 Absatz-Numerierung.- 6.3 Abkurzungen.- 6.4 Unterschiedliche Anfuhrungszeichen.- 6.5 Zwischenraume.- 6.6 Verschiedene Textstriche.- Tabellensatz.- 7.1 Reihensatz oder Tabelle.- 7.2 Tabellenkomponenten.- 7.3 Tabellenkonzeption.- 7.4 Tabellengliederung.- 7.5 Besondere Situationen.- 7.6 Diagramm statt Tabelle.- 7.7 Tabelle statt Liste.- Abbildungen.- 8.1 Anordnung von Abbildungen.- 8.2 Linienstarken.- 8.3 Geeigneter Detaillierungsgrad.- 8.4 Schrift in Abbildungen.- 8.5 Randbeschnitt.- 8.6 Halbtonbilder und Raster.- 8.6.1 Rasterzerlegung.- 8.6.2 Bildqualitat in Farbtiefe.- 8.6.3 Technische Raster.- 8.6.4 Tonwertzuwachs.- 8.7 Komprimieren - aber richtig.- 8.8 Farbe in Dokumenten.- 8.8.1 Der Einsatz von Farben.- 8.8.2 Stimmung und Wirkung von Farben.- 8.8.3 Farben im Farbkreis.- 8.8.4 Farbharmonie.- 8.8.5 Farben in Diagrammen und Graphiken.- 8.8.6 Farben an das Ausgabemedium adaptieren.- Von Zahlen zu Diagrammen.- 9.1 Verschiedene Diagrammarten.- 9.1.1 Kreisdiagramme.- 9.1.2 Balkendiagramme.- 9.1.3 Stabdiagramme.- 9.1.4 Figurendiagramme.- 9.1.5 Liniendiagramme.- 9.1.6 Netzdiagramme.- 9.2 Dreidimensionale Diagramme.- 9.3 Skalen.- 9.4 Weitere Regeln bei Diagrammen.- Prasentationen.- 10.1 Voruberlegungen zu Prasentationen.- 10.2 Von der Information zur Prasentation.- 10.3 Prasentationsmedien.- 10.4 Gliederung der Folien.- 10.5 Schrift in Folien.- 10.6 Makro- und Mikrotypographic in Prasentationen.- 10.6.1 Typo-Orthographie - Schreibregeln.- 10.6.2 Eine sorgfaltige Vorlage ist die halbe Arbeit.- 10.7 Graphiken in Folien.- 10.7.1 Bilder als symbolischer Hintergrund.- 10.7.2 Funktionsgraphiken.- 10.7.3 Weitere Prinzipien bei Graphiken.- 10.8 UEberblendeffekte und Animationen.- 10.9 Weitere Tips fur Prasentationen.- Der Standardbrief.- 11.1 DIN-Brief.- 11.2 Umschlage und Falzarten.- Von der Seite zum Buch.- 12.1 Arbeitsablauf einer Publikation.- 12.2 Die Teile eines Buchs.- 12.3 Titelei.- 12.3.1 Der Schmutztitel.- 12.3.2 Der Haupttitel.- 12.3.3 Impressum.- 12.3.4 Inhaltsverzeichnis.- 12.3.5 Vor- oder Geleitwort.- 12.4 Anhang.- 12.4.1 Bibliographie.- 12.4.2 Glossar.- 12.4.3 Register.- 12.5 Einband.- Satz und Korrektur.- 13.1 Satzanweisungen.- 13.2 Korrekturen, Korrekturzeichen.- Das Belichten.- 14.1 Die Belichtung.- 14.2 PostScript, PDF oder Dokument?.- 14.2.1 PostScript-Dateien.- 14.2.2 Adobe Acrobat - PDF.- 14.2.3 Dokumenten-Dateien.- 14.3 Schriften beim Belichten.- 14.4 Graphiken und Bilder.- 14.5 Angaben zum Belichten.- 14.6 Raster beim Belichten.- 14.7 Belichten von Farben.- 14.8 Belichtungsformular.- 14.9 Proof - Probedruck.- Drucken und Binden.- 15.1 Verschiedene Druckverfahren.- 15.2 Druck-Vorbereitungen.- 15.2.1 Belichten des Films.- 15.2.2 Ausschiessen.-

This book describes issues in modeling unconventional conflict and suggests a new way to do the modeling. It presents an ontology that describes the unconventional conflict domain, which allows for greater ease in modeling unconventional conflict. Supporting holistic modeling, which means that we can see the entire picture of what needs to be modeled, the ontology allows us to make informed decisions about what to model and what to omit. The unconventional conflict ontology also separates the things we understand best from the things we understand least. This separation means that we can perform verification, validation and accreditation (VV&A) more efficiently and can describe the competence of the model more accurately. However, before this message can be presented in its entirety the supporting body of knowledge has to be explored. For this reason, the book offers chapters that focus on the description of unconventional conflict and the analyses that have been performed, modeling, with a concentration on past efforts at modeling unconventional conflict, the precursors to the ontology, and VV&A. Unconventional conflict is a complex, messy thing. It normally involves multiple actors, with their own conflicting agendas and differing concepts of legitimate actions. This book will present a useful introduction for researchers and professionals within the field.

This text is the proceedings volume of a NATO Advanced Research Workshop, held in Eliat, Israel, April 5th-8th, 2000. It brings together interdisciplinary contributions ranging from applied mathematics, theoretical physics, quantum chemistry and molecular biology, all addressing different facets of the problem to connect the many scales of the computer simulation of many systems of interest in chemistry - polymetric materials, biological molecules, clusters, surface and interface structure. Emphasis is placed on the multigrid technique and its applications, ranging from electronic structure calculations to the statistical mechanics of polymers.

Process Technology brings together in one place important contributions and up-to-date research results in this fast moving area. Process Technology serves as an excellent reference, providing insight into some of the most challenging research issues in the field.

Mass customization is an emerging paradigm that is gathering a growing interest in many different industrial fields. The EUROShoE project, financed by the European Commission, explored the applicability of and developed technologies for the adoption of such a paradigm in the footwear business. The three-year research made evident the benefits that shoe companies can obtain by switching to the new business models and contributed to the development of many of the enabling technologies that adopting the new paradigm appears to have. Mass Customization and Footwear: Myth, Salvation or Reality is the only monograph dedicated to the application of mass customization in a particular industry. Based on the outcomes of the EUROShoE project, the book is a detailed analysis of the most relevant case studies of early mass customizers in the footwear sector, highlighting reasons for their failure or success. Both the technological aspects and the business aspects of mass customization, together with some relevant economic indicators are covered in the book. By showing examples of how a mature manufacturing sector like shoe making can be thoroughly renovated in business and mentality by applying this paradigm; Mass Customization and Footwear: Myth, Salvation or Reality will interest both practitioners in the footwear sector and postgraduates, researchers and lecturers in the area of mass customization.

Video technology promises to be the key for the transmission of motion video. A number of video compression techniques and standards have been introduced in the past few years, particularly the MPEG-1 and MPEG-2 for interactive multimedia and for digital NTSC and HDTV applications, and H.2611H.263 for video telecommunications. These techniques use motion estimation techniques to reduce the amount of data that is stored and transmitted for each frame. This book is about these motion estimation algorithms, their complexity, implementations, advantages, and drawbacks. First, we present an overview of video compression techniques with an emphasis to techniques that use motion estimation, such as MPEG and H.2611H.263. Then, we give a survey of current motion estimation search algorithms, including the exhaustive search and a number of fast search algorithms. An evaluation of current search algorithms, based on a number of experiments on several test video sequences, is presented as well. The theoretical framework for a new fast search algorithm, Densely-Centered Uniform-P Search (DCUPS), is developed and presented in the book. The complexity of the DCUPS algorithm is comparable to other popular motion estimation techniques, however the algorithm shows superior results in terms of compression ratios and video qUality. We should stress out that these new results, presented in Chapters 4 and 5, have been developed by Joshua Greenberg, as part of his M.Sc. thesis entitled "Densely-Centered Uniform P-Search: A Fast Motion Estimation Algorithm" (FAU, 1996).

Computer simulation techniques are now having a major impact on almost all areas of the physical and biological sciences. This book concentrates on the application of these methods to inorganic materials, including topical and industrially relevant systems including zeolites and high Tc superconductors.
The central theme of the book is the use of modern simulation techniques as a structural tool in solid state science. Computer Modelling in Inorganic Crystallography describes the current range of techniques used in modeling crystal structures, and strong emphasis is given to the use of modeling in predicting new crystal structures and refining partially known structures. It also reviews new opportunities being opened up by electronic structure calculation and explains the ways in which these techniques are illuminating our knowledge of bonding in solids.
Key Features
* Includes a thorough review of the technical basis of relevant contemporary methodologies including minimization, Monte-Carlo, molecular dynamics, simulated annealing methods, and electronic structure methods
* Highlights applications to amorphous and crystalline solids
* Surveys simulations of surface and defect properties of solids
* Discusses applications to molecular and inorganic solids

R/3 is a business system that has gained global prominence. However, the SAP R/3 has 237,000 function modules. Quite oftenprogrammersare unaware that a module exists which can be of help in their programs. This convenient resource is a collection of the most common ABAP modules, demonstrated within simple programs. These programs for easily searchable examples can be accessed from http: //extras.springer.com/978-1-85233-775-9

The modules in this book are organised for quick reference. This concise reference contains: A full explanation of the layout of reference entries;a brief introduction to SAP; coverage of conversion and date and time modules; file and directory modules; list, long texts, and number modules; useful integration modules for MSOffice and pop-up dialog box management.

This book organises over 300 modules, many of which are undocumented in text, and arranges them for quick and easy reference, and explains when and where to use the most common SAP R/3 ABAP function modules.

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This book discusses how technological innovations have affected the resolution of disputes arising from electronic commerce in the European Union, UK and China. Online dispute resolution (ODR) is a form of alternative dispute resolution in which information technology is used to establish a process that is more effective and conducive to resolving the specific types of dispute for which it was created. This book focuses on out-of-court ODR and the resolution of disputes in the field of electronic commerce. It explores the potential of ODR in this specific e-commerce context and investigates whether the current use of ODR is in line with the principles of access to justice and procedural fairness. Moreover, it examines the major concerns surrounding the development of ODR, e.g. the extent to which electronic ADR agreements are recognized by national courts in cross-border e-commerce transactions, how procedural justice is ensured in ODR proceedings, and whether ODR outcomes can be effectively enforced. To this end, the book assesses the current and potential role of ODR in resolving e-commerce disputes, identifies the legal framework for and legal barriers to the development of ODR, and makes recommendations as to the direction in which practice and the current legal framework should evolve. In closing, the book draws on the latest legislation in the field of e-commerce law and dispute resolution in order to make recommendations for future ODR design, such as the EU Platform-to-Business Regulation on Promoting Fairness and Transparency for Business Users of Online Intermediation Services (2019) and the United Nations Convention on International Settlement Agreements Resulting from Mediation (2018), which provide the legal basis for ODR's future development.

This book covers the basic statistical and analytical techniques of computer intrusion detection. It is aimed at both statisticians looking to become involved in the data analysis aspects of computer security and computer scientists looking to expand their toolbox of techniques for detecting intruders. The book is self-contained, assumng no expertise in either computer security or statistics. It begins with a description of the basics of TCP/IP, followed by chapters dealing with network traffic analysis, network monitoring for intrusion detection, host based intrusion detection, and computer viruses and other malicious code. Each section develops the necessary tools as needed. There is an extensive discussion of visualization as it relates to network data and intrusion detection. The book also contains a large bibliography covering the statistical, machine learning, and pattern recognition literature related to network monitoring and intrusion detection. David Marchette is a scientist at the Naval Surface Warfacre Center in Dalhgren, Virginia. He has worked at Navy labs for 15 years, doing research in pattern recognition, computational statistics, and image analysis. He has been a fellow by courtesy in the mathematical sciences department of the Johns Hopkins University since 2000. He has been working in conputer intrusion detection for several years, focusing on statistical methods for anomaly detection and visualization. Dr. Marchette received a Masters in Mathematics from the University of California, San Diego in 1982 and a Ph.D. in Computational Sciences and Informatics from George Mason University in 1996.

For almost three decades eminent computer graphicist Jim Blinn has coupled his scientific knowledge and artistic abilities to foster the growth of the computer graphics field. His many contributions include the Voyager Fly-by animations of space missions to Jupiter, Saturn, and Uranus; "The Mechanical Universe," a 52-part telecourse of animated physics; and the computer animation of Carl Sagan's PBS series "Cosmos." In addition, Blinn, the recipient of the first SIGGRAPH Computer Graphics Achievement Award, has developed many widely used graphics techniques, including bump mapping, environment mapping, and blobby modeling.
Blinn shares his insight and experience in "Jim Blinn's Corner," an award-winning column in the technical magazine "IEEE Computer Graphics and Applications" in which he unveils his most useful graphics methods and observations. This book, a compendium of 20 of the column's articles, leads you through the "graphics pipeline" offering a wealth of tips and tricks. It explores common graphics problems, many of which have never before been addressed.
An invaluable resource for any graphics professional
In his entertaining and inspirational style, Blinn examines a variety of topics to help computer graphics software and application developers recognize and solve graphics programming problems. Focusing on geometry and the graphics pipeline, he shares:
easy to understand explanations of difficult concepts gleaned from years of teaching
interesting examples of tricky special cases that cause conventional algorithms to fail
highly refined algorithms for clipping, viewing, lighting, and rendering
easy to understand explanations of difficult concepts gleaned from years of teaching
interesting examples of tricky special cases that cause conventional algorithms to fail
highly refined algorithms for clipping, viewing, lighting, and rendering

The "European Experiment on the Transport and Transformation of Environmentally Relevant Trace Constituents over Europe" (EUROTRAC) was established in 1986 to tackle the scientific problem and combine the expertise, knowledge and resources in Europe, in order to apply them over a large region covering the greater part of the continent. EUROTRAC is a coordinated multidisciplinary scientific research project involving field measurements, laboratory studies, instrument development and development of comprehensive computer models for the simulation of the physical and chemical processes in the lower atmosphere.

As well as updating the manifesto for an audio photography technology and practice, this book addresses issues in design history, the social shaping of technology and the management of innovation. In particular, it reveals the very different timescales over which design and innovation operate, and the way in which design ideas evolve across different research groups, companies and application areas. The capture of photographs with sound is a simple idea, proposed 10 years ago, that has still not become widespread. In this new edition of the seminal 2004 book on Audio photography, the author asks "Why?" A journey through the book's citations and related commercial products shows considerable progress in understanding the role of sound in photography, and myriad design experiments to support audio visual storytelling as a new media form. The book is a story in itself about the "long nose of innovation", and a lesson about the need for patience and persistence in the computer industry. To reinforce this point five of the 2004 chapters are re-published in their original form. These describe invariant properties of ambient musical, talking and conversational photographs, and the possibility of playback from paper as well as screen. Fast Design, Slow Innovation will be of interest to researchers and designers of new media systems and experiences, and to innovation scholars or managers looking for a ten year case study of innovation in action.

Despite the fact that Maple V has become one of the most popular computer algebra systems on the market, surprisingly few users realize its potential in the field of scientific visualization. The purpose of this book is to equip the reader with a variety of graphics tools needed on the voyage of discovery into the complex and often beautiful world of curves and surfaces. A comprehensive treatment of Maple's graphics commands and structures is combined with an introduction to the main aspects of visual perception. Top priority is given to the use of light, color, perspective, and geometric transformations. Numerous examples, accompanied by pictures (many in color), cover all aspects of Maple graphics. The examples can be easily customized to suit the individual needs of the reader. The approach is context independent, and as such will appeal to students, educators, and researchers in a broad spectrum of scientific disciplines. For the general user at any level of experience, this book can serve as a comprehensive reference manual. For the beginner, it offers a user- friendly elementary introduction to the subject, with mathematical requirements kept to a minimum. For those interested in advanced mathematical visualization, it explains how to maximize Maple's graphical capabilities. In particular, this book shows how to turn Maple into an excellent modeling tool capable of generating elaborate surfaces that conventional modelers cannot produce. These surfaces can be exported to an external ray tracer (e.g. POV-ray) for sophisticated photo-realistic rendering. All of the Maple code segments which are presented in the book, as well as high-resolution pictures showing alternative renderingsof some of the book's color plates, are included on the accompanying DOS diskette.

The book presents the state of the art in high-performance computing and simulation on modern supercomputer architectures. It explores general trends in hardware and software development, and then focuses specifically on the future of high-performance systems and heterogeneous architectures. It also covers applications such as computational fluid dynamics, material science, medical applications and climate research and discusses innovative fields like coupled multi-physics or multi-scale simulations. The papers included were selected from the presentations given at the 20th Workshop on Sustained Simulation Performance at the HLRS, University of Stuttgart, Germany in December 2015, and the subsequent Workshop on Sustained Simulation Performance at Tohoku University in February 2016.

This series is dedicated to developments in accounting information systems. Each volume is structured into three sections: information systems practice and theory; information systems and the accounting/auditing environment; and perspectives on information systems research. This volume includes evidence from three experiments relating to the effect of socioeconomic background on computer anxiety and performance. Other areas covered include audit expert system development, users affective responses to information systems through an empirical comparison of four operationalizations, articulating accounting database queries, audit decision aids and integrating group support systems into the accounting environment.