Techno-economic assessment of building energy efficiency systems using behavioral change: A case study of an edge-based micro-moments solution

Energy efficiency based on behavioral change has attracted increasing interest in recent years, although, solutions in this area lack much needed techno-economic analysis. That is due to the absence of both prospective studies and consumer awareness. To close such gap, this paper proposes the first techno-economic assessment of a behavioral change-based building energy efficiency solution, to the best of the authors' knowledge. From the one hand, the technical assessment is conducted through (i) introducing a novel edge-based energy efficiency solution; (ii) analyzing energy data using machine learning tools and micro-moments, and producing intelligent, personalized, and explainable action recommendations; and (iii) proceeding with a technical evaluation of four application scenarios, i.e., data collection, data analysis and anomaly detection, recommendation generation, and data visualization. On the other hand, economic assessment is performed by examining the marketability potential of the proposed solution via a market and research analysis of behavioral change-based systems for energy efficiency applications. Also, various factors impacting the commercialization of the final product are investigated before providing recommended actions to ensure its potential marketability via conducting a Go/No-Go evaluation. In conclusion, the proposed solution is designed at a low cost and can save up to 28%-68% of the consumed energy, which results in a Go decision to commercialize the technology. 2021 Elsevier LtdThis paper was made possible by National Priorities Research Program (NPRP) grant No. 10-0130-170288 from the Qatar National Research Fund (a member of Qatar Foundation). The statements made herein are solely the responsibility of the authors.Scopu

Capability Driven Development: An Approach to Designing Digital Enterprises

The need for organizations to operate in changing environments is addressed by proposing an approach that integrates organizational development with information system (IS) development taking into account changes in the application context of the solution. This is referred to as Capability Driven Development (CDD). A meta-model representing business and IS designs consisting of goals, key performance indicators, capabilities, context and capability delivery patterns, is being proposed. The use of the meta-model is validated in three industrial case studies as part of an ongoing collaboration project, whereas one case is presented in the paper. Issues related to the use of the CDD approach, namely, CDD methodology and tool support are also discussed

Understanding human-machine networks: A cross-disciplinary survey

© 2017 ACM. In the current hyperconnected era, modern Information and Communication Technology (ICT) systems form sophisticated networks where not only do people interact with other people, but also machines take an increasingly visible and participatory role. Such Human-Machine Networks (HMNs) are embedded in the daily lives of people, both for personal and professional use. They can have a significant impact by producing synergy and innovations. The challenge in designing successful HMNs is that they cannot be developed and implemented in the same manner as networks of machines nodes alone, or following a wholly human-centric view of the network. The problem requires an interdisciplinary approach. Here, we review current research of relevance to HMNs across many disciplines. Extending the previous theoretical concepts of sociotechnical systems, actor-network theory, cyber-physical-social systems, and social machines, we concentrate on the interactions among humans and between humans and machines. We identify eight types of HMNs: public-resource computing, crowdsourcing, web search engines, crowdsensing, online markets, social media, multiplayer online games and virtual worlds, and mass collaboration. We systematically select literature on each of these types and review it with a focus on implications for designing HMNs. Moreover, we discuss risks associated with HMNs and identify emerging design and development trends

Capability driven development: an approach to designing digital enterprises

The final publication is available at Springer via http://dx.doi.org/10.1007/s12599-014-0362-0[EN] The need for organizations to operate in changing environments is addressed by proposing an approach that integrates organizational development with information system (IS) development taking into account changes in the application context of the solution. This is referred to as Capability Driven Development (CDD). A meta-model representing business and IS designs consisting of goals, key performance indicators, capabilities, context and capability delivery patterns, is being proposed. The use of the meta-model is validated in three industrial case studies as part of an ongoing collaboration project, whereas one case is presented in the paper. Issues related to the use of the CDD approach, namely, CDD methodology and tool support are also discussed.This work has been partially supported by the EU-FP7 funded project no: 611351 CaaS - Capability as a Service in Digital Enterprises.Berzisa, S.; Bravos, G.; Cardona Gonzalez, T.; Czubayko, U.; España, S.; Grabis, J.; Henkel, M.... (2015). Capability driven development: an approach to designing digital enterprises. Business and Information Systems Engineering. 57(1):15-25. https://doi.org/10.1007/s12599-014-0362-0S1525571ArchiMate (2013) An enterprise modeling language from the Open Group. http://www.opengroup.org/archimate/ . Accessed 3 Dec 2014Asadi M, Ramsin R (2008) MDA-based methodologies: an analytical survey. In: Proceedings Model driven architecture – foundations and applications (ECMDA-FA 2008), LNCS 5095, pp 419–431Barney JB (1991) Firm resources and sustained competitive advantage. J Manag 17(1):99–120Bērziša S, Bravos G, Gonzalez Cardona T, Czubayko U, España S, Grabis J, Henke lM, Jokste L, Kampars J, Koc H, Kuhr J, Llorca C, Loucopoulos P, Juanes Pascua lR, Sandkuh lK, Simic H, Stirna J, Zdravkovic J (2014) Deliverable 1.4: Requirements specification for CDD, CaaS – capability as a service for digital enterprises. FP7 project no 611351, Riga Technical University, Latvia. Submitted for reviewBubenko JA Jr, Persson A, Stirna J (2001) User guide of the knowledge management approach using enterprise knowledge patterns. Deliverable D3, IST programme project hypermedia and pattern based knowledge management for smart organisations. project no. IST-2000-28401, Royal Institute of Technology, SwedenBriand LC, Yue T, Labiche Y (2011) A systematic review of transformation approaches between user requirements and analysis models. Requir Eng 16:75–99De Kinderen S, Gordijn J, Akkermans H (2009) Reasoning about customer needs in multi-supplier ICT service bundles using decision models. In: Proceedings 11th international conference on enterprise information systems (ICEIS 2009), pp 131–136Deloitte (2009) Cloud computing: forecasting change. Deloitte Consulting, New York. http://public.deloitte.no/dokumenter/2_Cloud_Computing%5B1%5D.pdf . Accessed 3 Dec 2014Dey A (2001) Understanding and using context. Pers Ubiquitous Comput 5(1):4–7Gamma E, Helm R, Johnson R, Vlissides J (1995) Design patterns: elements of reusable object-oriented software architecture. Addison-Wesley, BostonGomes D, Gonçalves JM, Santos R, Aguiar R (2010) XMPP based context management architecture. In: Proceedings GLOBECOM workshop, IEEE, pp 1372–1377González A, España S, Ruiz M, Pastor Ó (2011) Systematic derivation of class diagrams from communication-oriented business process models. In: 12th working conference on business process modeling, development, and support (BPMDS’11). Springer LNBIP 81, pp 246–260Henkel M, Stirna J (2010) Pondering on the key functionality of model driven development tools: the case of mendix. In: Forbrig P, Günther H (eds) Proceedings business informatics research (BIR 2010), Springer LNBIP 64, pp 146–160Hervas R, Bravo J, Fontecha J (2010) A context model based on ontological languages – a proposal for information visualisation. J Univers Comput Sci 16(12):1539–1555Jarke M, Loucopoulos P, Lyytinen K, Mylopoulos J, Robinson W (2011) The brave new world of design requirements. Information Syst 36(7):992–1008Kaplan RS, Norton DP (2004) Strategy maps: converting intangible assets into tangible outcomes. Harvard Business School Press, BostonKleppe A, Warmer J, Bast W (2013) MDA explained. Addison-Wesley, BostonLoniewski G, Insfran E, Abrahao L (2010) A systematic review of the use of requirements engineering techniques in model-driven development. In: Proceedings model driven engineering languages and systems (MODELS 2010), Part II, LNCS 6395, pp 213–227Mohagheghi P, Dehlen V (2008) Where is the proof? - a review of experiences from applying MDE in industry. In: Proceedings model driven architecture – foundations and applications (ECMDA-FA 2008). LNCS 5095. Springer, Heidelberg, pp 432–443Nilsson AG, Tolis C, Nellborn C (eds) (1999) Perspectives on business modelling: understanding and changing organisations. Springer, HeidelbergOASIS (2011) Reference architecture foundation for service oriented architecture version 1.0, committee specification draft 03/public review draft 02 06 July 2011. http://docs.oasis-open.org/soa-rm/soa-ra/v1.0/soa-ra.pdf . Accessed 3 Dec 2014OMG (2011a) UML superstructure. http://www.omg.org/spec/UML/2.4.1/ . 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Cybersecurity for industrial Internet of Things: architecture, models and lessons learned

Modern industrial systems now, more than ever, require secure and efficient ways of communication. The trend of making connected, smart architectures is beginning to show in various fields of the industry such as manufacturing and logistics. The number of IoT (Internet of Things) devices used in such systems is naturally increasing and industry leaders want to define business processes which are reliable, reproducible, and can be effortlessly monitored. With the rise in number of connected industrial systems, the number of used IoT devices also grows and with that some challenges arise. Cybersecurity in these types of systems is crucial for their wide adoption. Without safety in communication and threat detection and prevention techniques, it can be very difficult to use smart, connected systems in the industry setting. In this paper we describe two real-world examples of such systems while focusing on our architectural choices and lessons learned. We demonstrate our vision for implementing a connected industrial system with secure data flow and threat detection and mitigation strategies on real-world data and IoT devices. While our system is not an off-the-shelf product, our architecture design and results show advantages of using technologies such as Deep Learning for threat detection and Blockchain enhanced communication in industrial IoT systems and how these technologies can be implemented. We demonstrate empirical results of various components of our system and also the performance of our system as-a-whole

Energy Efficiency Comparison of MIMO-Based and Multihop Sensor Networks

Wireless sensor networks (WSNs) demand the implementation of energy-aware techniques and low-complexity protocols in all layers. Recently, a MIMO-based structure has been proposed to offer enhanced energy savings in WSNs. In this paper, we examine and compare MIMO-based WSN with a multihop transmission in terms of energy efficiency. The results depend on the network density, the channel conditions, and the distance to the destination node. We reach analytical expressions to calculate threshold values of these parameters, which determine the areas where the MIMO-based structure outperforms multihop transmission. Moreover, we present a detailed analysis of the dissipated power during a sensor node_s operation, to prove that as microelectronics develops, the MIMO-based architecture will outperform the equivalent multihop structure for most of the cases examined. Finally, we implement a simple cooperative node selection algorithm to achieve higher energy gains in the MIMO approach, and we examine how this algorithm affects the calculated thresholds

Επίδραση χημικών επιβραδυντών στην ευφλεκτότητα των δασικών υλών pinus halepensis και cictus incanus με χρήση της μεθόδου limiting oxygen index

82 σ.Στη παρούσα διπλωματική εργασία μελετάται η καύση δυο δασικών υλών και συγκεκριμένα της Χαλέπιος Πεύκης (Pinus halepensis) και Λαδανιάς (Cistus incanus). Η καύση αυτών έγινε με τη μέθοδο Limiting Oxygen Index και καταγράφηκε ο δείκτης ελαχίστου οξυγόνου για καθένα από αυτά. Η καύση των δασικών υλών επαναλήφθηκε μετά την εφαρμογή επιβραδυντικών διαλυμάτων. Χρησιμοποιήθηκαν διαλύματα επτά διαφορετικών επιβραδυντών: μονόξινου φωσφορικού διαμμωνίου (DAP), φωσφορικού μονοαμμωνίου (MAP), θειικού αμμωνίου (AS), Firetrol 931, Firetrol 934, Firetrol GTS-R και Phoschek D75F σε συγκεντρώσεις 5% w/w, 10% w/w, 15% w/w και 20%w/w. Κατά τη πειραματική διαδικασία χρησιμοποιήθηκαν τρεις κυρίως συσκευές. Η συσκευή Limiting Oxygen Index αποτέλεσε τη κύρια πειραματική διάταξη καθώς χρησιμοποιήθηκε για τη καταγραφή του δείκτη ελαχίστου οξυγόνου των δασικών υλών, στοιχείο στο οποίο βασίζεται η εργασία αυτή. Έπειτα το πυριαντήριο, ρυθμισμένο σε κατάλληλες συνθήκες, ήταν απαραίτητο για τη ξήρανση των δειγμάτων πριν αυτά οδηγηθούν στη συσκευή L.O.I. Τέλος το conditioning box, ειδικός θάλαμος για τη διατήρηση καθορισμένων συνθηκών θερμοκρασίας και υγρασίας χρησιμοποιήθηκε μόνο στις περιπτώσεις που ήταν απαραίτητη η παραμονή των δειγμάτων για αρκετές ώρες πριν τη καύση τους προκειμένου να διατηρηθεί το επίπεδο υγρασίας τους σταθερό. Από την επεξεργασία των δειγμάτων μετρήθηκαν οι δείκτες ελαχίστου οξυγόνου πριν και μετά τη χρήση των επιβραδυντών. Τα συμπεράσματα που προκύπτουν από την εκτέλεση του πειράματος, με βάση τους αντίστοιχους δείκτες οξυγόνου που μετρήθηκαν, είναι πως η Χαλέπιος Πεύκη (Pinus halepensis) χαρακτηρίζεται ως εξαιρετικά εύφλεκτο υλικό ενώ η Λαδανιά (Cistus incanus) ως υλικό που αργοκαίγεται. Σχετικά με τους επιβραδυντές που μελετήθηκαν, όλοι τους παρουσίασαν καλή επιβραδυντική δράση. Καλύτερα αποτελέσματα και για τις δυο δασικές ύλες εμφάνισε ο επιβραδυντής φωσφορικό μονοαμμώνιο (MAP) με ποσοστά αύξησης του δείκτη οξυγόνου από 21,27% έως 41,81% για τη δασική ύλη Χαλέπιος Πεύκη (Pinus halepensis) και 49,14% έως 79,71% για τη δασική ύλη Λαδανιά (Cistus incanus). Τα μικρότερα ποσοστά αύξησης στο δείκτη οξυγόνου επέφερε ο επιβραδυντής Phoschek D75F, τα οποία κυμαίνονται από 14,43% έως 18,34 για τη Χαλέπιο Πεύκη (Pinus halepensis) και 30,62% έως 48,22% για τη δασική ύλη Λαδανιά (Cistus incanus). Τέλος η μέθοδος που χρησιμοποιήθηκε στη παρούσα διπλωματική εργασία θα μπορούσε να χαρακτηριστεί ιδιαίτερα απλή, αξιόπιστη και σχετικά φθηνή σε σύγκριση με άλλες αναλυτικές μεθόδους.Γεώργιος Α. Μπράβο

Big data analytics in e-commerce logistics: Findings from a systematic review and a case study

Digital evolution has significantly changed consumer shopping habits and expectations resulting in a major growth of e-commerce. The immediate outcome of this growth was the creation of a dynamic and turbulent environment with increasing density of the distribution network. This environment consists of many delivery points, multiple delivery channels and last-mile delivery requirements. Due to its complexity and the proliferation of data challenges, e-commerce logistics is an area where the application of Big data analytics can be proven to be extremely fertile. Despite the growing interest, there are limited studies that investigate the role of Big data. By using a design science approach, we clarified the current e-commerce logistics practices as well as the envisioned ones that can, to a large extent, be supported by appropriate big data technologies. We concluded to a set of business requirements that express the needs towards the e-commerce logistics. Then, the requirements were translated into a set of use case scenarios to demonstrate how they could be supported by big data analytics. We conclude by proposing a conceptual architecture of a big data analytics artefact that could cover the e-commerce logistics requirements