Analysing How Users Prefer to Model Contextual Event-Action Behaviours in Their Smartphones

Abstract. Developing context-dependent applications involves indicating the relevant contextual events and the corresponding actions. Based on an analysis of the usability and expressiveness of three Android apps for developing such applications, we have started a study that aims to identify a general solution able to better represent how users classify the relevant concepts in order to facilitate their manipulation during development. We report on a card sorting experiment carried out with 18 users for this purpose, and an analysis of its results, with sug-gestions for improving current designs and informing future solutions

Towards the Composition of Services by End-Users: A Mobile-Based Solution

[EN] Nowadays, we live surrounded by heterogeneous and distributed services that are available to people anytime and anywhere. Even though these services can be used individually, it is through their synchronized and combined usage that end-users are provided with added value. However, existing solutions to service composition are not targeted at ordinary end-users. In fact, these solutions require technical knowledge to deal with the technological heterogeneity in which they are offered to the market. To this end, the paper presents a tool-supported platform that is aided by: (1) EUCalipTool, an end-user mobile tool that implements a Domain Specific Visual Language, which has been specifically designed to compose services on mobile devices; (2) a Faceted Service Registry, which plays the role of gateway between service implementations and end-users, hiding technological issues from the latter when including services in a composition; and (3) a Generation Module, which transforms end-user descriptions into BPMN specification that are interpreted by an execution infrastructure developed for that purpose.This work has been developed with the financial support of the Spanish State Research Agency under the project TIN2017-84094-R and co-financed with ERDF.Valderas, P.; Torres Bosch, MV.; Pelechano Ferragud, V. (2020). Towards the Composition of Services by End-Users: A Mobile-Based Solution. Business & Information Systems Engineering. 62(4):305-321. https://doi.org/10.1007/s12599-019-00617-zS305321624Amir R, Zeid A (2004) A UML profile for service-oriented architectures. In: Companion to the 19th annual ACM SIGPLAN conference on object-oriented programming systems, languages, and applications, Vancouver. ACM, New York, pp 192–193Athreya B, Bahmani F, Diede A, Scaffidi C (2012) End-user programmers on the loose: a study of programming on the phone for the phone. In: IEEE symposium on visual languages and human-centric computing, Innsbruck. IEEE, pp 75–82Atooma (2015) Atooma, a touch of magic. https://www.atooma.com/ . Accessed 1 Oct 2018Ayora C, Torres V, Weber B, Reichert M, Pelechano V (2013) Enhancing modeling and change support for process families through change patterns. In: Nurcan S et al (eds) Enterprise, Business-Process and Information Systems Modeling. BPMDS 2013, EMMSAD 2013, vol 147. Lecture Notes in Business Information Processing. Berlin, Heidelberg, pp 246–260Benedek J, Miner T (2002) Measuring desirability: new methods for evaluating desirability in a usability lab setting. In: Proceedings from the Usability’s Professionals Association (UPA)Broke J (1996) SUS. A “quick and dirty” usability scale. In: Jordan P et al (eds) Usability evaluation in industry. Taylor & Francis, London, pp 189–194Cuccurullo S, Francese R, Risi M, Tortora G (2011) MicroApps development on mobile phones. In: Costabile MF, Dittrich Y, Fischer G, Piccinno A (eds) End-User Development. IS-EUD 2011, vol 6654. Lecture Notes in Computer Science. Berlin, Heidelberg, pp 289–294Danado J, Paternò F (2014) Puzzle: a mobile application development environment using a jigsaw metaphor. J Vis Lang Comput 25(4):297–315Danado J, Davies M, Ricca P, Fensel A (2010) An authoring tool for user generated mobile services. In: Berre AJ, Gómez-Pérez A, Tutschku K, Fensel D (eds) Future internet—FIS 2010. FIS 2010, vol 6369. Lecture Notes in Computer Science. Berlin, Heidelberg, pp 118–127Dey AK, Sohn T, Streng S, Kodama J (2006) iCAP: interactive prototyping of context-aware applications. In: Fishkin KP, Schiele B, Nixon P, Quigley A (eds) Pervasive Computing. Pervasive 2006, vol 3968. Lecture Notes in Computer Science. Berlin, Heidelberg, pp 254–271Engeström Y, Miettinen R, Punamäki RL (1999) Perspectives on activity theory. Cambridge University Press, CambridgeErmagan V, Krüger IH (2007) A UML2 profile for service modeling. In: Engels G, Opdyke B, Schmidt DC, Weil F (eds) Model Driven Engineering Languages and Systems. MODELS 2007, vol 4735. Lecture Notes in Computer Science. Berlin, Heidelberg, pp 360–374Galitz WO (2002) The essential guide to user interface design: an introduction to GUI. Design principles and techniques. Wiley, New YorkGuillen J, Miranda J, Berrocal J, Garcia-Alonso J, Murillo JM, Canal C (2014) People as a service: a mobile-centric model for providing collective sociological profiles. IEEE Softw 31(2):48–53Häkkilä J, Korpipää P, Ronkainen S, Tuomela U (2005) Interaction and end-user programming with a context-aware mobile application. In: Costabile MF, Paternò F (eds) Human-Computer Interaction—INTERACT 2005, Lecture Notes in Computer Science, vol 3585. Berlin, Heidelberg, pp 927–937IFTTT (2015) IFTTT, if this then that. https://IFTTT.com/ . Accessed 1 Oct 2018Klusch M, Sycara K (2001) Brokering and matchmaking for coordination of agent societies: a survey. In: Omicini A, Zambonelli F, Klusch M, Tolksdorf R (eds) Coordination of Internet Agents. Springer, Berlin, Heidelberg, pp 197–224Locale (2015). http://www.twofortyfouram.com . Accessed 1 Oct 2018Lucci G, Paternò F (2014) Understanding end-user development of context-dependent applications in smartphones. In: Sauer S, Bogdan C, Forbrig P, Bernhaupt R, Winckler M (eds) Human-Centered Software Engineering. HCSE 2014, Lecture Notes in Computer Science, vol 8742. Berlin, Heidelberg, pp 182–198Paolucci M, Kawamura T, Payne TR, Sycara K (2002) Semantic matching of web services capabilities. In: Horrocks I, Hendler J (eds) The Semantic Web—ISWC 2002, Lecture Notes in Computer Science, vol 2342. Berlin, Heidelberg, pp 333–347Renger M, Kolfschoten GL, de Vreede GJ (2008) Challenges in collaborative modeling: a literature review. In: Advances in enterprise engineering I, vol 10, Montpellier, pp 61–77Repenning A, Ioannidou A (2006) What makes end-user development tick? 13 design guidelines. In: End user development. Human-computer interaction series, vol 9. Springer, Berlin, pp 51–85Rumbaugh J, Jacobson I, Booch G (2004) The unified modeling language reference manual. Pearson, LondonSegal J (2005) Two principles of end-user software engineering research. ACM SIGSOFT Softw Eng Notes 30(4):1–5Serral E, Valderas P, Pelechano V (2013) Context-adaptive coordination of pervasive services by interpreting models during runtime. Comput J 56(1):87–114Tasker (2015) Tasker, total automation for Android. http://tasker.dinglisch.net/ . Accessed 1 Oct 2018Uden L, Valderas P, Pastor O (2008) An activity-theory-based model to analyse web application requirements. Inf Res 13(2):1Valderas P, Pelechano V, Pastor O (2006) A transformational approach to produce web application prototypes from a web requirements model. Int J Web Eng Technol 3(1):4–42Valderas P, Torres V, Mansanet I, Pelechano V (2017) A mobile-based solution for supporting end-users in the composition of services. Multimed Tools Appl 76(15):16315–16345Workflow.is (2018) Workflow. Spend less taps, get more done. https://workflow.is/ . Accessed 1 Oct 2018Yu J, Sheng QZ, Han J, Wu Y, Liu C (2012) A semantically enhanced service repository for user-centric service discovery and management. Data Knowl Eng 72:202–21

A mobile-based solution for supporting end-users in the composition of services

The final publication is available at Springer via http://dx.doi.org/10.1007/s11042-016-3910-4Currently, technologies and applications evolve to create eco-systems made up of a myriad of heterogeneous and distributed services that are accessible anytime and anywhere. Even though these services can be used individually, it is their coordinated and combined usage what provide an added value to end-users. In addition, user¿s wide adoption of mobile devices for daily activities have fostered a shift in the role played by end-users towards Internet data and services. However, existing solutions to service composition are not targeted to ordinary end-users. More easy-to-use tools have to be offered to end-users to make sure that they are successfully accepted and used by them. To this end, the work presented in this paper supports end-users in the creation of service compositions by using mobile devices. We present a Domain Specific Visual Language (DSVL) for end-users that allows them to create service compositions. A tool specifically designed for mobile devices supports this DSVL.This work has been developed with the support of MINECO under the project SMART ADAPT TIN2013-42981-P and co-financed with ERDF.Valderas Aranda, PJ.; Torres Bosch, MV.; Mansanet Benavent, I.; Pelechano Ferragud, V. (2016). A mobile-based solution for supporting end-users in the composition of services. Multimedia Tools and Applications. 1-31. https://doi.org/10.1007/s11042-016-3910-4S131Athreya B, Bahmani F, Diede A, Scaffidi C (2012) End-user programmers on the loose: a study of programming on the phone for the phone. In IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC), Innsbruck, Austria, pp. 75–82Atoma (2015) Atoomam, a touch of magic. Accesible at: https://www.atooma.com/ . Last time accessed: December 2015Ayora C, Torres V, Weber B, Reichert M, Pelechano V (2013) Enhancing modeling and change support for process families through change patterns. In: Enterprise, business-process and information systems modeling. Springer, Berlin, pp. 246–260Boehm B, Abts C, Brown A, Chulani S, Clark B, Horowitz E, Madchy R, Reifer D, Steece B (2000) Software Cost Estimation with COCOMOII. Upper Saddle River: Prentice HallBPDM (2014) Business Process Defintion Metamodel, volume ii: Process Definitions. http://www.omg.org/spec/BPDM/1.0/volume2/PDFCasati F (1998) Models, semantics, and formal methods for the design of workflows and their exceptions. PhD thesis, MilanoCouper MP, Tourangeau R, Conrad FG, Crawford SD (2004) What they see is what we get: response options for web surveys. Soc Sci Comput Rev 22(1):111–127Cuccurullo S, Francese R, Risi M, Tortora G (2011) MicroApps development on mobile phones. In: End-user development. Springer, Berlin, pp. 289–294Dadam P, Reichert M (2009) The ADEPT project: a decade of research and development for robust and flexible process support. Comput Sci - R&D 23:81–97Danado J, Paternò F (2014) Puzzle: a mobile application development environment using a jigsaw metaphor. J Vis Lang Comput 25(4):297–315Danado J, Davies M, Ricca P, Fensel A (2010) An authoring tool for user generated mobile services. In: Future internet-FIS 2010. Springer, Berlin, pp. 118–127Dey AK, Sohn T, Streng S, Kodama J (2006) iCAP: interactive prototyping of context-aware applications. In: Pervasive computing. Springer, Berlin, pp. 254–271Engeström Y, Miettinen R, Punamäki RL (1999) Perspectives on activity theory. Cambridge University Press, CambridgeGalitz WO (2002) The essential guide to user interface design: an introduction to GUI. In: Design principles and techniques. Wiley, New YorkGil M, Serral E, Valderas P, Pelechano V (2013) Designing for user attention: a method for supporting unobtrusive routine tasks. Sci Comput Program 78(10):1987–2008Gubbi J, Buyya R, Marusic S, Palaniswami M (2013) Internet of things (IoT): a vision, architectural elements, and future directions. Futur Gener Comput Syst 29(7):1645–1660Haines W, Gervasio M, Spaulding A, Peintner B (2010) Recommendations for end-user development. In ACM Workshop on User-Centric Evaluation of Recommender Systems and their Interfaces, Barcelona, Spain, pp. 42-49Häkkilä J, Korpipää P, Ronkainen S, Tuomela U (2005) Interaction and end-user programming with a context-aware mobile application. In: Human-computer interaction-INTERACT 2005. Springer, Berlin, pp. 927–937ICIS (2015) Internet Computing in the Internet of Services. Summer School. Department of Informatics Engineering of the University of Coimbra. Available at: http://icis.uc.pt/ . Last time accessed: December 2015Ifttt (2015) Ifttt, If This Then That. Accesible at: https://ifttt.com/ . Last time accessed: December 2015Larman C, Basili VR (2003) Iterative and incremental development: a brief history. Computer 6:47–56Lewis JR (1995) IBM computer usability satisfaction questionnaires: psychometric evaluation and instructions for use. Int J Hum Comput Interact 7(1):57–78Liberman H, Paternò F, Klann M, Wulf V (2006) End user development. In: Liberman H, Paternò F, Wulf V (eds) End-user development: an emerging paradigm, vol 9, pp. 427–457Locale (2015) Accesible at: http://www.twofortyfouram.com . Last time accessed: December 2015Lucci G, Paternò F (2014) Understanding end-user development of context-dependent applications in smartphones. In: Human-centered software engineering. Springer, Berlin, pp. 182–198Mansanet I, Torres V, Valderas P, Pelechano V (2014) A Mobile End-Use Tool for service Compositions. X Jornadas de Ciencia e Ingeniería de Servicios (JCIS 2014), 25–35Mansanet I, Torres V, Valderas P, Pelechano V (2015) IoT Compositions by and for the Crowd. XI Jornadas de Ciencia e Ingeniería de Servicios (JCIS 2015)Neil T (2014) Mobile design pattern gallery: UI patterns for smartphone apps. “O’Reilly Media, Inc.”, SebastopolNielsen J (2005) Ten usability heuristics. https://www.nngroup.com/articles/ten-usability-heuristics . Last time accessed: February 2016Renger M, Kolfschoten GL, de Vreede GJ (2008) Challenges in collaborative modeling: A literature review. In Advances in enterprise engineering I, held at CAiSE 2008, Montpellier, 10. 61–77Repenning A, Ioannidou A (2006) What makes end-user development tick? 13 design guidelines. End user development, Human-Computer Interaction Series, vol 9, pp. 51–85Runeson P, Höst M (2009) Guidelines for conducting and reporting case study research in software engineering. Empir Softw Eng 14(2):131–164Segal J (2005) Two principles of end-user software engineering research, In ACM SIGSOFT software engineering notes (Vol. 30, No. 4, pp. 1–5). ACM, New YorkSerral E, Valderas P, Pelechano V (2013) Context-adaptive coordination of pervasive services by interpreting models during runtime†. Comput J 56(1):87–114Tasker (2015) Tasker, Total Automation for Android. Accesible at: http://tasker.dinglisch.net/ . Last time accessed: December 2015.Uden L, Valderas P, Pastor O (2008) An activity-theory-based model to analyse Web application requirements. Inf Res 13(2):1Valderas P, Pelechano V, Pastor O (2006) A transformational approach to produce web application prototypes from a web requirements model. Int J Web Eng Technol 3(1):4–42Van Deursen A, Klint P, Visser J (2000) Domain-specific languages: an annotated bibliography. Sigplan Notices 35(6):26–36Van Welie M, Trætteberg H (2000) Interaction patterns in user interfaces. In 7th. Pattern Languages of Programs Conference (pp. 13–16)Weber B, Reichert M, Rinderle S (2008) Change patterns and change support features - enhancing flexibility in process-aware information systems. Data Knowl Eng 66:438–466Yu J, Sheng QZ, Han J, Wu Y, Liu C (2012) A semantically enhanced service repository for user-centric service discovery and management. Data Knowl Eng 72:202–21

My IoT Puzzle: Debugging IF-THEN Rules Through the Jigsaw Metaphor

End users can nowadays define applications in the format of IF-THEN rules to personalize their IoT devices and online services. Along with the possibility to compose such applications, however, comes the need to debug them, e.g., to avoid unpredictable and dangerous behaviors. In this context, different questions are still unexplored: which visual languages are more appropriate for debugging IF-THEN rules? Which information do end users need to understand, identify, and correct errors? To answer these questions, we first conducted a literature analysis by reviewing previous works on end-user debugging, with the aim of extracting design guidelines. Then, we developed My IoT Puzzle, a tool to compose and debug IF-THEN rules based on the Jigsaw metaphor. My IoT Puzzle interactively assists users in the debugging process with different real-time feedback, and it allows the resolution of conflicts by providing textual and graphical explanations. An exploratory study with 6 participants preliminary confirms the effectiveness of our approach, showing that the usage of the Jigsaw metaphor, along with real-time feedback and explanations, helps users understand and fix conflicts among IF-THEN rules

EUD-MARS: End-User Development of Model-Driven Adaptive Robotics Software Systems

Empowering end-users to program robots is becoming more significant. Introducing software engineering principles into end-user programming could improve the quality of the developed software applications. For example, model-driven development improves technology independence and adaptive systems act upon changes in their context of use. However, end-users need to apply such principles in a non-daunting manner and without incurring a steep learning curve. This paper presents EUD-MARS that aims to provide end-users with a simple approach for developing model-driven adaptive robotics software. End-users include people like hobbyists and students who are not professional programmers but are interested in programming robots. EUD-MARS supports robots like hobby drones and educational humanoids that are available for end-users. It offers a tool for software developers and another one for end-users. We evaluated EUD-MARS from three perspectives. First, we used EUD-MARS to program different types of robots and assessed its visual programming language against existing design principles. Second, we asked software developers to use EUD-MARS to configure robots and obtained their feedback on strengths and points for improvement. Third, we observed how end-users explain and develop EUD-MARS programs, and obtained their feedback mainly on understandability, ease of programming, and desirability. These evaluations yielded positive indications of EUD-MARS

Empowering the user with contextual information: from location infrastructures to augmented reality interfaces

Sumário - O trabalho apresentado nesta dissertação envolve a utilização de realidade aumentada como uma interface ubíqua no mundo real. A tese discute ainda diferentes aspectos associados aos diferentes módulos necessarios para o desenvolvimento de um sistema de computação ubíqua, nomeadamente a aquisição de contexto e a apresentação de informação ao utilizador. No contexto da tese, são ainda discutidas novas arquitecturas, métodos e técnicas para melhorar os sistemas de computação ubíqua. Esta secção apresenta uma breve descrição da tese, assim como as questões e objectivos que levaram à sua realização. ### Summary - Augmented Reality and Ubiquitous Computing are evolving topics in computer science. In this dissertation, augmented reality is discussed as a ubiquitous interface applied to several events in the real world, namely environmental management, every day's life and entertainment. Throughout the dissertation, different aspects of the development of augmented reality systems for ubiquitous computing are presented, such as a number of architectures, methods and techniques to ubiquitously locate persons and objects and visualize related information. There are several technologies used to track persons and object, however their capabilities and limitations make each technology more suitable for specific purposes. One example is the limitation presented by GPS, used to track users or objects outdoor

Ozone monitoring in the UK A review of 1987/8 data from monitoring sites operated by Warren Spring Laboratory

SIGLEAvailable from British Library Document Supply Centre- DSC:7628.85(WSL-LR--678(AP)M) / BLDSC - British Library Document Supply CentreGBUnited Kingdo