ABSTRACT The generation and accumulation of obsolete electrical and electronic equipment is growi... more ABSTRACT The generation and accumulation of obsolete electrical and electronic equipment is growing fast, becoming one of the most complex waste streams the modern world face. It is clear that the e-waste environmental, economical, and social consequences, that stakeholders in both developed and developing countries should deal with, need a proper e-waste management system. The purpose of this paper is to analyze the flow in an e-waste management system, present the processes included and the necessary information that interrelate and affect the processes. The analysis focuses on the management system for e-wastes created by IT and telecommunication equipment. The paper presents relative studies and flow diagrams that were used in the development of the herein proposed diagram. The study results in the presentation of a material and information flow diagram of ICT waste management system. (C) 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of The Hellenic Association for Information and Communication Technologies in Agriculture Food and Environment (HAICTA)
International Journal of Agricultural and Environmental Information Systems, 2015
The generation and accumulation of waste of electrical and electronic equipment (WEEE) is growing... more The generation and accumulation of waste of electrical and electronic equipment (WEEE) is growing fast, becoming one of the most complex waste streams the modern world faces. The effective and efficient management of this waste stream raises the interest of the global scientific and business community. The purpose of this paper is to analyze the flow in an e-waste management system, present the main processes included and detect the information procedures that affect the operation of the system. For its research, first a detailed literature review is presented and second the critical information flows are analyzed. The findings indicate five critical informational procedures of managerial concern: (a) defining the infrastructure, technological systems, and investments that are needed to optimize an e-waste management network, (b) minimizing the total cost of the e-waste management system, (c) estimating ICT waste quantities as precisely as possible, (d) selecting the appropriate str...
Page 1. Combining metrics for software evolution assessment by means of Data Envelopment Analysis... more Page 1. Combining metrics for software evolution assessment by means of Data Envelopment Analysis Alexander Chatzigeorgiou* and Emmanouil Stiakakis Department of Applied Informatics, University of Macedonia, 156 Egnatia St, 54006 Thessaloniki, Greece SUMMARY ...
ABSTRACT This paper continues previous work of the authors concerning the identification and stat... more ABSTRACT This paper continues previous work of the authors concerning the identification and statistical analysis of the quality dimensions in mobile services (m-services). In this work, the structure of mservice quality into dimensions and criteria, which these dimensions are further analyzed into, is examined and grounded through an empirical analysis. The use of multivariate statistical techniques is decomposed into two stages: in the first stage, Factor Analysis in order to explore the relationship between the examined items (quality criteria) and the constructs (dimensions) proposed through the study of the relevant literature. In the second stage, Cluster Analysis and Principal Component Analysis are employed in order to explore intra-construct relationships. The contribution of this paper lies on the fact that a mix of multivariate statistical techniques is all integrated in a single framework, so that information about the structure of m-service quality criteria and constructs is obtained. The findings of the study confirm the theoretical background and provide valuable managerial insights.
ABSTRACT The generation and accumulation of obsolete electrical and electronic equipment is growi... more ABSTRACT The generation and accumulation of obsolete electrical and electronic equipment is growing fast, becoming one of the most complex waste streams the modern world face. It is clear that the e-waste environmental, economical, and social consequences, that stakeholders in both developed and developing countries should deal with, need a proper e-waste management system. The purpose of this paper is to analyze the flow in an e-waste management system, present the processes included and the necessary information that interrelate and affect the processes. The analysis focuses on the management system for e-wastes created by IT and telecommunication equipment. The paper presents relative studies and flow diagrams that were used in the development of the herein proposed diagram. The study results in the presentation of a material and information flow diagram of ICT waste management system. (C) 2013 The Authors. Published by Elsevier Ltd. Selection and peer-review under responsibility of The Hellenic Association for Information and Communication Technologies in Agriculture Food and Environment (HAICTA)
International Journal of Agricultural and Environmental Information Systems, 2015
The generation and accumulation of waste of electrical and electronic equipment (WEEE) is growing... more The generation and accumulation of waste of electrical and electronic equipment (WEEE) is growing fast, becoming one of the most complex waste streams the modern world faces. The effective and efficient management of this waste stream raises the interest of the global scientific and business community. The purpose of this paper is to analyze the flow in an e-waste management system, present the main processes included and detect the information procedures that affect the operation of the system. For its research, first a detailed literature review is presented and second the critical information flows are analyzed. The findings indicate five critical informational procedures of managerial concern: (a) defining the infrastructure, technological systems, and investments that are needed to optimize an e-waste management network, (b) minimizing the total cost of the e-waste management system, (c) estimating ICT waste quantities as precisely as possible, (d) selecting the appropriate str...
Page 1. Combining metrics for software evolution assessment by means of Data Envelopment Analysis... more Page 1. Combining metrics for software evolution assessment by means of Data Envelopment Analysis Alexander Chatzigeorgiou* and Emmanouil Stiakakis Department of Applied Informatics, University of Macedonia, 156 Egnatia St, 54006 Thessaloniki, Greece SUMMARY ...
ABSTRACT This paper continues previous work of the authors concerning the identification and stat... more ABSTRACT This paper continues previous work of the authors concerning the identification and statistical analysis of the quality dimensions in mobile services (m-services). In this work, the structure of mservice quality into dimensions and criteria, which these dimensions are further analyzed into, is examined and grounded through an empirical analysis. The use of multivariate statistical techniques is decomposed into two stages: in the first stage, Factor Analysis in order to explore the relationship between the examined items (quality criteria) and the constructs (dimensions) proposed through the study of the relevant literature. In the second stage, Cluster Analysis and Principal Component Analysis are employed in order to explore intra-construct relationships. The contribution of this paper lies on the fact that a mix of multivariate statistical techniques is all integrated in a single framework, so that information about the structure of m-service quality criteria and constructs is obtained. The findings of the study confirm the theoretical background and provide valuable managerial insights.
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