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Introduction
Skills and Expertise
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November 2003 - present
Publications
Publications (137)
Nowadays data streams from different sources, like blockchain‐based and traditional financial transactions, social networks, and interconnected Internet of Things (IoT) devices, are becoming increasingly large in volume and the need to recognize patterns in real time from these streams, while adapting to their velocity and veracity, is emerging. Es...
CompactLight is a Design Study funded by the European Union under the Horizon 2020 research and innovation funding programme, with Grant Agreement No. 777431. CompactLight was conducted by an International Collaboration of 23 international laboratories and academic institutions, three private companies, and five third parties. The project, which st...
Employees can help organizations attain Corporate Environmental Performance (CEP) goals and save on energy bills, by conserving electricity. However, they lack the motivation. Information Systems (IS)-enabled energy-related feedback interventions featuring gamification (utilizing game-design elements), have been suggested to increase organizational...
The innovative FEL design by the CompactLight Collaboration is briefly presented. The major contribution of our team, mainly from Greece cooperating with the team of ESS-ERIC, is emphasised to the material selection of the proper photocathode illuminated with the relevant laser, the magnet and solenoid design of the injector for optimum beam condit...
The abundance of customer behavioral data alters the design and application of customer analytics systems and approaches. Segmentation is a common customer analytics practice, but researchers highlight that traditional segmentation approaches are not enough. We coin the term “visit segmentation” and devise a visit segmentation approach. When design...
Purpose:
Discussion regarding systems that promote innovation, aptly named Innovation Ecosystems, has been intensifying both in academia and business. The purpose of this paper is to introduce Activity Theory as a theoretical framework for conceptualizing and studying Innovation Ecosystems. Using Activity Theory it investigates elements that affect...
Energy and carbon management systems (ECMS) are a class of green information systems that has the potential to increase environmental sustainability in organizations and across supply chains. Employing a design science research approach, we define the scope of ECMS in the supply chain context, identify requirements, design an expository instantiati...
The report presents, as the main result of the CompactLight project, the conceptual design of the CompactLight hard X-ray FEL. It is divided in the following chapters:
1. Executive Summary
2. Introduction
3. Science Goals and Photon Output Requirements
4. Systems Design and Performance
5. Accelerator
6. Light Production
7. Civil Engineering...
Abstract
Energy and Carbon Management Systems (ECMS) are a class of green information systems that has the potential to increase environmental sustainability in organizations and across supply chains. Employing a design science research approach, we define the scope of ECMS in the supply chain context, identify requirements, design an expository i...
Energy and Carbon Management Systems (ECMS) are a class of green information systems that has the potential to increase environmental sustainability in organizations and across supply chains. Employing a design science research approach, we define the scope of ECMS in the supply chain context, identify requirements, design an expository instantiati...
The pandemic has created a multitude of challenges for businesses in a very short period of time. It shaped new conditions and needs for consumers, exerted greater pressure on the economy, affected access to new markets and investment capital, and imposed new operating models, adaptations, and transformation at all levels. With technology being the...
Contemporary information systems in combination with high-speed internet, liberate individuals as they set them free from time, place and device restrictions of their everyday life. As a result, they blur the boundaries between work, social and personal life contexts. In this paper we introduce the concept of digital emancipation to refer to the no...
Entrepreneurship and its connection to the manifestations of innovation has been discussed in academia for quite some time. The last 15 years saw the increasing relevance of open innovation and a rising prominence of so-called ecosystems. As interactions between different stakeholders become more complex, innovation ecosystems are becoming of prime...
Innovative technology enterprises are recognized internationally as an important pillar in modern economic activity. This paper presents the findings from a research combining qualitative and quantitative methods, with the specific goal of identifying and verifying the characteristics that affect their survival and growth. Results from an in-depth...
Companies nowadays use various business intelligence and analytics (BI&A) platforms to support de-cision making. Key challenges for users are to efficiently interact with BI&A platforms and quickly comprehend the insights. The research field that studies user-centric design of systems is Human-Com-puter Interaction (HCI). A lot of research has been...
Gamification is a contemporary powerful means of affecting human behavior. However, its effectiveness relies on both the users' profiles and non-game context characteristics. This article focused on designing gamified interventions guided by the users' profiles and the application context, towards increasing the potential for user engagement and be...
The latest generation of light sources, the Free Electron Lasers that are capable of delivering high-intensity photon beams of unprecedented brilliance and quality, provide a substantially novel way to probe matter with a very high, largely unexplored potential for science and innovation. The CompactLight Collaboration intends to design a hard X-ra...
The ongoing global environmental crisis has led to the identification of energy-saving as a worldwide necessity. Public buildings hold great unexploited opportunities towards that end. Moreover, the occupants’ behavior is an impactful factor that can potentially lead to significant energy-savings therein. Recognizing the engaging power of games tow...
This paper has developed and deployed a Bluetooth Low Energy (BLE) beacon-based indoor positioning system in a two-floor retail store. The ultimate purpose of this study was to compare the different indoor positioning techniques towards achieving efficient position determination of moving customers in the retail store. The innovation of this resear...
Energy wastage, especially in public buildings, is one of the widely acknowledged issues that have to be addressed towards protecting the environment. Furthermore, affecting the occupants’ behaviour has been identified in the literature as an under-investigated means of conserving energy. In this research paper we report on the results from an inve...
Energy conservation in workplace environments is recognized as both important and impactful towards reducing worldwide CO2 emissions and protecting the environment. However, the focus of existing research has not primarily been on the employees' energy consumption behavior, albeit its potential impact on workplace energy efficiency. Aiming to affec...
Many new product innovations are attributed to new venture creation. Although there are many success cases, many new ventures quit before they have fulfilled their greatest potential mainly because the team quits their effort. This research tries to delve into several factors that affect the dynamics of an entrepreneurial team along the different s...
Gamification can be used to effect positive behavioral change in various fields, including energy conservation. This paper reports on a survey we conducted to formulate a holistic view of users’ profiles and preferences in an Internet of Things (IoT)-enabled gamified mobile application that provides personalized energy-saving recommendation tips to...
Basket analytics is a powerful tool in the retail context for acquiring knowledge about consumer shopping habits and preferences. In this paper, we propose a business analytics approach that mines customer visit segments from basket sales data. We characterize a customer visit by the purchased product categories in the basket and identify the shopp...
We live in a world that is changing constantly due to the pervasive impact of technologies, such as mobile smart phones, social media, wireless sensor networks, etc. Many of these technologies did not exist 5 years ago and our lives, society, business and, from an academic perspective the Information Systems(IS) research agendas are being shaped by...
In an online marketplace reality in which customer satisfaction emerges as a key success factor for e-retailers, it becomes crucial to better understand whether the shoppers are satisfied and what factors affect their satisfaction experience. As we are in the Big Data era, Business Analytic techniques could assist us to better understand our custom...
This paper focuses on determining the important factors that must be considered when designing and developing a gamification application that educates employees in workplaces, towards a more sustainable energy consumption behaviour. We have conducted on-site surveys, as well as unstructured interviews with employees from three different workplaces...
Energy wastage in public buildings amounts to an important and not fully addressed cost. The present study is focused on introducing gamification at the workplace, with the overall goal of reducing energy wastage during and past employees' working hours. In the context of an EU Horizon 2020 project, a gamified app and supporting infrastructure will...
In an era of significant technological advancements, as well as dramatic changes in the business envi-
ronment, the state of the workforce seems to remain problematic, with regards to motivation. Albeit
prevailing societal clichés, that often seem to promote the idea that ‘the modern workplace provides
for a far better experience than in the past...
In response to the increasing demand for sustainable supply chains, companies need to trace, manage and assess their energy and carbon emissions by incorporating a life cycle perspective. Recent studies in the field of Information Systems (IS) have argued that information systems can contribute to more sustainable supply chains by supporting energy...
1. Recent technological developments have facilitated the continuous identification and tracking of individual objects/ things moving in space. Business analytics tools can handle the resulting vast amount of object tracking data. Thus, tracking technologies could be viewed as information facili-tators that can directly improve decision-making. Thi...
The emergence of new technologies and information-rich environments (e.g. Internet-of-Things, sensors, radio frequency identification (RFID), big data, etc.) open up new possibilities and provide novel capabilities and tools for addressing many modern food-related requirements. This chapter first maps the latest information technology (IT) capabili...
Shoppers enter stores to meet diverse need states, such as getting a soft drink and a bag of potato chips for immediate consumption or purchasing ingredients for meals to make on the same day. The present article introduces the concept of a shopping mission that can be identified by the complementarity and sales affinity among the balanced number o...
Most future improvements in healthcare may not come from beter medecine but from improved systems engineering. Several traditional healthcare processes, such as the blood-handling process, in many hospitals involves a number of manual steps with high probability of human mistakes. While barcode technology has been available for decades and has been...
Retailers have long recognized the importance of business analytics methods for facilitating more effective customer-related decisions that result in added-value customer service. We recommend a retail data-driven approach that reveals a wealth of consumer shopping behavioral insights. We employ clustering techniques to segment the customer visits....
Radio frequency identification (RFID) has been always considered as a forward looking technology. It is an information facilitator that can directly improve decision‐making, thus many retailers and suppliers have adopted it. A vast amount of RFID data streams has been gathered, however, it remains unutilized, or it is been exploited solely for inve...
In response to the mounting request for sustainable supply chains, companies need to assess the environmental performance of their operations and products. Recent studies within the field of Information Systems (IS) argue that information systems can forge supply chain sustainability by monitoring a firm's environmental performance. The latter requ...
Empowered by the possibility to automatically identify unique product instances, the Radio Frequency Identification (RFID) technology is expected to revolutionize the supply chain processes. However, in view of the numerous possible ways that RFID can be implemented within the supply chain, the issue of supporting the design choices based on a cred...
Due to the high levels of flexibility and uncertainty associated with the deployment of RFID technology in the supply chain (e.g. alternative investment implementations based on the number of RFID-enabled processes or the different supply-chain nodes involved—e.g. stores, warehouses etc.), Real Options analysis becomes strongly suitable. In contras...
During the last decades, firms have deployed environmental sustainability practices. While most of these practices incur internally within a firm’s boundaries, collaboration with supply chain partners and sharing of information related to the environmental impact of a firm’s products and processes, namely environmental information, has been identif...
The main objective of this research is to study the role of social media in the information acquisition process. We study social media as "information sources" and we give answer to the question: Do consumers use different types of social media when they seek for pre-purchase information? In order to address this question, firstly we investigate th...
As the transformation of various services into appealing game-like experiences is in its infancy, limited research exists in the area and in particular on the way each gamification design decision affects intended outcome. In the present study we investigate the impact of two game elements (incentive type and community collaboration) on user's expe...
Cloud computing is a recent trend that has transformed the IS resource provisioning industry. However, the hype that cloud computing has received lately in combination with the 'must-deploy' imperative usually used by its promoters, makes it easy for decision makers to lose track of the reasons that make cloud computing valuable to business. At the...
This panel primarily focusses on entrepreneurship in the context of IS, including the teaching and researching of entrepreneurship and the implications for Information Systems. The Information Systems literature has acknowledged the role of technologically led innovation, with particular emphasis on diffusion of innovation and technology adoption....
Innovative services consist the main point of interest so for academics as for the business world. The basic objective of this paper is to demonstrate the way that innovative services may change the "consumer experience" in the airport environment. In the following lines we describe the procedure of designing innovative services, so for consumers'...
The present study aims to identify the potential benefits deriving from the introduction of gamification elements in the consumer shopping process, in order to engage consumers in a more ecologically conscious behavior. Interviews with lead consumers show that the gamification of the shopping process results in increment of the stated intention to...
Object tracking systems track moving objects between locations and provide object positioning information. Such systems rely on tracking technologies e.g. Radio Frequency Identification (RFID). The challenge is how to ensure an adequate quality of information at a moderate infrastructure cost. We propose a framework that evaluates information quali...
Drawing data from the Mediterranean Conference on Information Systems (MCIS), we build a profile of Mediterranean information systems (IS) research and compare the emerging research landscape with recent reviews in European and international contexts. We report on research topics addressed, research methodologies employed, local empirical contexts...
Through this research the authors communicate the lessons learned during the deployment of two RFID retail applications—namely dynamic pricing of fresh products and management of promotions in the supermarket floor—in two real-life pilot sites in Greece and Ireland. The lessons are presented in three inter-related perspectives; engineering challeng...
Expiration date-based pricing (EDBP) occurs when a grocery retailer reduces the price of a perishable product according to its remaining shelf life. While, conventional wisdom suggests that this practice leads to negative consumer evaluations of brand quality, a series of field experiments reveal negative effects on brand quality perceptions only a...
Information acquisition is one of the most important steps of consumer behaviour. Scholars have designed models which show the factors that affect the procedure of information acquisition, paying specific attention on personality traits and types of information sources. The main objective of this paper is to study the impact of information acquisit...
While literature on information technology (IT) investment evaluation through Real Option analysis has acknowledged that different types of IT projects might encompass diverse real option value, the majority of the research treats IT projects as a homogeneous group. Little research has been conducted to empirically test and compare different IT pro...
Purpose
The satisfaction‐trust paradigm has been recently criticized regarding its ability to deliver positive consumer behavioral outcomes. This study aims to argue that – amongst others – a reason for this unpleasant situation may be the failure of service managers to account for non‐linearities in the satisfaction‐trust paradigm.
Design/methodo...
We propose an analytical model that evaluates the information completeness of object tracking systems based on their size, breadth and reading depth. We showcase that the larger size of a system’s configuration does not ensure better completeness; instead, the effect of reading depth is greater. The completeness of tracking information can characte...
Nowadays, organizations, governments, and cross-national bodies are turning their attention to the question of how we can create a sustainable society. As government is one of the main stakeholders that could enhance sustainability and the transition from
government to e-government seems to be one of the main strategic choices of each government, a...
The deterioration of environmental and societal conditions worldwide has initiated extensive discussions on what has been coined as sustainability and to what extent the relevant actions constitute an imperative or alternatively disorientate businesses for their main scope. Despite the attention given on this topic, there exists a noticeable lack o...
While RFID technology has been widely praised for its ability to streamline supply chain processes, little attention has been given to its unique data capturing characteristics to support real-time decision making. Being able to efficiently perform complex real-time analysis on top of RFID event streams is a key challenge for modern applications. T...
Governments started e-government strategies to renew the public sector and eliminate existing bureaucracy and therefore reduce costs. Plenty of electronic services were developed in order to meet these targets. Nowadays, organizations, governments, and cross-national bodies are turning their attention to the question of how we can create a sustaina...
Information sharing and interoperability are key ingredients for any system that participates in Service Oriented Architectures (SOA) and wants to communicate and exchange information with other partners. Although there are many technologies that support interoperability, there is apparently no relevant research about how to extract and aggregate t...
The objective of effective supply chain management is the coordination of information, materials and financial flows between organisations. The recent trends of globalisation, consumer pressure for responsiveness and reliability, and intense competition in the global trading community have made effective supply chain management a very challenging i...
Freezing is a very well established food preservation process that produces high-quality nutritious foods that offer the advantage of a long storage life. However, freezing is not suitable for all foods, and freezing does cause physical and chemical changes in many foods that are perceived as reducing the quality of the thawed material. Many innova...
Purpose
The objective of this paper is to demonstrate the challenges when developing a common performance measurement system (PMS) in the context of a collaborative supply chain.
Design/methodology/approach
The paper utilizes qualitative and quantitative data from a case study. The qualitative data refer to the assessment of collaborative performa...
Purpose
The purpose of the study is to investigate loyalty building and the creation of affectionate bonds in the consumer‐firm dyad.
Design/methodology/approach
The study relies on face‐to‐face personal interviews in the context of grocery store retailing.
Findings
The results identify the significant predictors of consumer‐firm emotional attach...
Prior empirical research on the evaluation of RFID technology
treats and assesses individual RFID applications
independently and in isolation from each other. However, literature on investment evaluation of information technologies has recognised and utilised the significance of evaluating “interdependent” information systems (IS) projects with syn...
As the “Internet of Things” is expected to grow rapidly in the following years, the need to develop and deploy efficient and
scalable Discovery Services in this context is very important for its success. Thus, the ability to evaluate and compare the
performance of different Discovery Services architectures is vital if we want to allege that a given...
Empowered by the possibility to automatically identify unique product instances, the emerging Radio Frequency Identification (RFID) technology is expected to revolutionize the supply chain processes. However, in view of the numerous possible ways that RFID can be implemented within the supply chain, the issue of supporting the design choices based...
This paper presents the development and deployment of an RFID-enabled system supporting promotions management. The system provides both back-end functionality to supply chain partners by measuring promotions effectiveness and front-end functionality to consumers by providing personalized selection of alternative promotion gifts. We report the syste...
Governments started e-government strategies to renew the public sector and eliminate existing bureaucracy and therefore reduce costs. Interoperability appears as the mean for accomplishing the interlinking of information systems, applications and ways of working not only within governments but also in their interaction with the administration, ente...
The introduction of emerging technologies in retailing and their infusion into the service encounter necessitates research to better understand consumer attitude toward the usage of technology into the service delivery systems. The capability of Radio Frequency Identification (RFID) technology to automatically and uniquely identify products makes t...
We discuss the challenges of implementing an Internet-based platform for creating collaborative supply chains using a case study in the retail sector. The case presents how an Internet-based collaboration platform was implemented to address the strategic issue of increasing shelf availability and customer service in grocery retailing, an issue that...
Purpose
The concept of “traceability as a strategy and mandatory initiative” has replaced that of “traceability as a cost of a business or as a voluntary responsibility”. This implies that the introduction of a traceability system should be perceived and positioned as a catalyst for better business practices. However, despite these benefits, a trac...
Existing IS research on consumer acceptance of technology has mainly focused on web-based applications and online stores. However, the appearance of new technologies, such as RFID, mobile computing and sensor networks ,has driven retail companies to the development of several in-store technological applications in order to support consumer services...
The problem of products missing from the shelf is a major one in the grocery retail sector, as it leads to lost sales and decreased consumer loyalty. Yet, the possibilities for detecting and measuring an “out-of-shelf” situation are limited. In this paper we suggest the employment of machine-learning techniques in order to develop a rule-based Deci...
This paper theoretically defines the concept of technology contact, as a specific service characteristic, that is referred to the level of customer-technology interaction the service requires. Moreover, it defines technology contact of a service as a construct with three dimensions: time of interaction with technology, medium sophistication and tas...