{"title":"The Impact of Transient Loads on the Performance of Service Ecologies","authors":"D. Dyachuck, R. Deters","doi":"10.1109/DEST.2007.371978","DOIUrl":"https://doi.org/10.1109/DEST.2007.371978","url":null,"abstract":"Well defined, loosely coupled services are the basic building blocks of the service-orientated design-integration paradigm. Services are computational elements that expose functionality in a platform independent manner and can be described, published, discovered, orchestrated and consumed across language, platform and organizational borders. Using service-orientation (SO) it is fairly easy to expose existing applications/resources and to aggregate them into novel services called composite services (CS). This aggregation is achieved by defining a workflow that orchestrates the underlying services in a manner consistent with the desired functionality. Since CS can aggregate atomic and other CS, they foster the development of service layers and reuse of already existing functionality. This gave rise to the idea of service networks and consequently service ecologies. In these service ecologies providers and consumers build a self-organizing system across platform and organizational borders, in which resources and business processes are shared. However, the ease with which resources are shared raises concerns in regards to the dependability (e.g. reliability, availability) of the resulting system and consequently the feasibility of service ecologies. This paper focuses on the performance issues that arise when composite services are exposed to transient loads and discusses the need for admission control and adaptive scheduling as a means for improving the performance in service ecologies.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126639130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Information Technology Evolution: An Entropy Tree Perspective","authors":"Seong-Hyun Kim, Sunshin An","doi":"10.1109/DEST.2007.371967","DOIUrl":"https://doi.org/10.1109/DEST.2007.371967","url":null,"abstract":"In this paper we analyze the nature of the evolution of technology, particularly information technology. The pace of evolution in IT demands rapid adaptation by programmers and engineers. This means keeping abreast of changing programming languages and techniques. This paper proposes a technology entropy tree which illustrates the hierarchical relationship between previous and successor technologies. The purpose of our proposal is to give programmers and engineers a deeper understanding of the patterns of technological evolution in IT in order to enable them to effectively keep up with rapid changes in technology. We use examples from programming languages to describe properties of technology evolution. We also present criteria based on a technology entropy tree for comparing technologies and selecting career paths. Finally we propose a feasible strategy to cope with fast-paced technology change and growth using prior results.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126049973","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Soundness and Equivalence of Petri Nets and annotated Finite State Automate: A Comparison in the SOA context","authors":"A. Wombacher, A. Martens","doi":"10.1109/DEST.2007.371980","DOIUrl":"https://doi.org/10.1109/DEST.2007.371980","url":null,"abstract":"A lot of work exists on notions of equivalence and soundness relations of different workflow models, which are used in different domains like e.g. business process modeling, software and service engineering. These definitions are based on different models, including Petri nets and different versions of finite state automata, having different expressiveness and computational complexity classes. The aim of this paper is to compare the equivalence and soundness relations of the Petri net and annotated finite state automaton models in the context of Service Oriented Architectures. It turns out that up to a certain expressiveness the relations are comparable and computable with reasonable effort. For these cases also mappings between the different models and relations are presented.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126217901","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The Singapore Infocomm Technology (ICT) system as a form of digital eco-economic system","authors":"C. Lam","doi":"10.1109/DEST.2007.371935","DOIUrl":"https://doi.org/10.1109/DEST.2007.371935","url":null,"abstract":"Singapore has been ranked amongst the top nations in terms of IT readiness and IT as a factor of national competitiveness by the World Economic Forum Report. Another report by the consulting firm Accenture shows that Singapore's e-government efforts have resulted in the highest ranking amongst nations in terms of the trust of the people using e-government. This presentation looks at the historical evolution and future planning of the Singapore Infocomm Technology (ICT) system at the national level from the point of view of a digital eco-system. In particular, Singapore's ICT development can be viewed as a special sub-set of the digital eco-system in light of the considerable intervention and catalytic efforts of the government in promoting ICT within itself, the private sector and the people sector both at home and in the field of education. To this extent, it is possible to view the Singapore ICT eco-system as a form of 'Eco-garden' which has a higher degree of human intervention and nuturring. The Singapore experience shows that ecogardening can have very positive effects on the growth of the ICT system. This is possible because of careful understanding of the catalytic role of government and knowing when to impose order and when to allow natural selection and evolution to occur.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116247815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reversible Semi-fragile Watermarking Based on Histogram Shifting of Integer Wavelet Coefficients","authors":"Xiaoyun Wu","doi":"10.1109/DEST.2007.372028","DOIUrl":"https://doi.org/10.1109/DEST.2007.372028","url":null,"abstract":"A reversible semi-fragile watermarking scheme for image authentication is presented in this paper. By embedding a watermark in LL4 subband of the integer wavelet domain, the scheme has the ability for tamper localization which is not mentioned in most of the reversible semi-fragile authentication watermarking scheme reported in the literature. Data that are used to restore the original image are hidden in the high frequency subbands by histogram shifting of integer wavelet coefficients with higher magnitude in the corresponding subband coefficients histogram, and therefore keep good visual quality of the marked image. Moreover, this scheme is robust to JPEG lossy compression at a lower quality factor. Experimental results demonstrate the merits of the proposed scheme.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114644822","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Ontology for Automated Multi-site Project Management","authors":"Hai Dong, F. Hussain, E. Chang","doi":"10.1109/DEST.2007.371997","DOIUrl":"https://doi.org/10.1109/DEST.2007.371997","url":null,"abstract":"One characteristic of multi-site project organizations is that people in the organizations are geographically dispersed and from different cultural background, which challenges the senior management to successfully complete the task of project management. Here we introduce the theory of CCCI metrics in order to solve the issue. By means of ontology technology, we propose an ontology-based system which is to help the senior management to realize the function of automated project management in multi-site project organization.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114964686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
N. Gioldasis, T. Dakanalis, G. Anestis, N. Pappas, F. Kazasis, S. Christodoulakis
{"title":"SSLE: A Language and an Interactive Editor for the Semantic Description of Services in MOF Architectures","authors":"N. Gioldasis, T. Dakanalis, G. Anestis, N. Pappas, F. Kazasis, S. Christodoulakis","doi":"10.1109/DEST.2007.372002","DOIUrl":"https://doi.org/10.1109/DEST.2007.372002","url":null,"abstract":"In this paper we describe an architecture, a language and an interactive graphical editor for the semantic description of services in digital business ecosystem environments. For the semantic description of business services, a MOF metadata modelling approach has been adopted where a meta-model provides the modelling elements needed to build custom service description models. The architecture can utilize complex or simple structures from diverse domain ontologies in order to specialise service models to business domains and also to allow for business differentiation through model variations. Finally we describe the implementation of the system as well as a UML-like interactive editor that facilitates the creation of the semantic service models.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129430751","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Hashimoto, S. Mochizuki, Y. Morita, H. Tsutsui, M. Yoshiura, K. Akazawa, M. Ohsuga, S. Uto, H. Otani, T. Fujisato
{"title":"Environmental Design for Muscle Cell Culture with Magnetic Field","authors":"S. Hashimoto, S. Mochizuki, Y. Morita, H. Tsutsui, M. Yoshiura, K. Akazawa, M. Ohsuga, S. Uto, H. Otani, T. Fujisato","doi":"10.1109/DEST.2007.372019","DOIUrl":"https://doi.org/10.1109/DEST.2007.372019","url":null,"abstract":"Control methodology on cell culture has been studied for regenerative medicine and micro-actuator in an interdisciplinary research field. Environment has been designed around cultured muscle cells with a magnetic field, and an effect of the magnetic field at an extremely low frequency on proliferation and orientation of cultured skeletal muscle cells has been studied in vitro. Skeletal muscle cells were isolated from a hind-limb quadriceps, and cultured on a dish coated with collagen. The culture dishes were placed parallel to the uniform alternating magnetic field, which was generated with a solenoid coil. The result shows that the cultured skeletal muscle cells tend to align to the direction of the magnetic field at the extremely low frequency.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130291766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Digital Eco-systems Pre-Design: Variety Analyses, System Viability and Tacit System Control Mechanisms","authors":"T. Love, T. Cooper","doi":"10.1109/DEST.2007.372013","DOIUrl":"https://doi.org/10.1109/DEST.2007.372013","url":null,"abstract":"This paper reports research into the application of Ashby's Law of Requisite Variety to assist with identifying optimal choices of design solutions at the pre-design stage of designing digital ecosystems. This study of the application of Ashby's Law is a component of a larger research program investigating the application of classical systems analysis tools in pre-design optimisation processes in designing digital information systems. The paper describes three extensions to Ashby's Law of Requisite Variety developed by the authors that extend the analytical role of Ashby's Law in diagnosis of unintended design outcomes from changes in control of variety in complex, multi-layered and hierarchical systems (such as digital eco-systems) that have multiple stakeholders or constituencies. The paper demonstrates this application of Ashby's Law of Requisite Variety and the three extensions in a pre-design role in relation to digital learning object eco-systems. Analysis of variety generation and variety control is used to investigate how choice of software systems such as XML influences the control of system variety. The research draws attention to ways this leads to weaknesses in eco-system viability necessitating additional variety controlling measures that offer opportunities for hegemonic control of the eco-system by constituencies providing the additional variety controlling infrastructures and standards.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130394634","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Anonymous Payment in a Client Centric Model for Digital Ecosystems","authors":"Jesús Téllez Isaac, Jose Sierra Caimara","doi":"10.1109/DEST.2007.372011","DOIUrl":"https://doi.org/10.1109/DEST.2007.372011","url":null,"abstract":"Most of the payment protocols designed in recent years for mobile payment systems are based on a scenario where all the entities are directly connected to one another. This scenario (formally called \"full connectivity scenario\") offers advantages to protocol's designers because it allows them to simplify the design and development of payment protocols without losing security guarantees. However, the \"full connectivity\" scenario does not consider those situations in which the merchant cannot communicate with the acquirer due to absence of Internet access in his/her infrastructure, and the use of other communication technologies is unaffordable due to the inconveniences and costs associated. In order to overcome this restriction and contribute to the progress of m-commerce, in this paper we propose a novel anonymous protocol for a mobile payment system based on a client centric model that employs a digital signature scheme with message recovery using self-certified public keys. As a result, our proposal illustrates how a merchant can sell goods in a secure way even if she can not directly communicate with the acquirer.","PeriodicalId":448012,"journal":{"name":"2007 Inaugural IEEE-IES Digital EcoSystems and Technologies Conference","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-06-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130637788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}