Renovating information technology infrastructure to effectively provide E-services

Most times the provision of e-government services is dealt with independency of the legacy system itself. As more complex Iransactional services are provided to the public and the degree of on-line interaction between e-government service users (Internet) and legacy system users (Intranet) increases, the integration between e-service provision platform and existing legacy information system becomes a one-way direction. Although current technological trends as the J2EE architecture and web service platform promise the seamless integration of any type of system, this is not always true. In this paper we discuss the implications of such integration and the strategic decisions made regarding legacy system renovation

An approach to offering one-stop e-government services - available technologies and architectural issues

The right of citizens to high-quality e-Government services makes one-stop service offerings an essential feature for e-Govemment. Offering onestop services presents many operational implications; an one-stop service provision (OSP) architecture is needed that, by means of a layered approach, provides facilities to refer to, invoke and combine e-Government services in a unifonn way, in the context of cross-organisational workflows. Although enabling technologies for all the layers of such an architecture are quickly evolving (XML, WSDL, UDDI, WFMS et al) two major issues that need to be solved are (a) abstracting the heterogeneity of the e-Government services that need to be integrated and (b) identifying an appropriate style for cross-organisational workflow control, somewhere in between the fully centralised and peer-to-peer extremes. This paper presents an abstract layered OSP architecture, identifies some major enabling technologies and briefly discusses those two issues. © Springer-Verlag Berlin Heidelberg 2002

Transactional e-government services: An integrated approach

Although form-based services are fundamental to e-government activities, their widespread does neither meet the citizen's expectations, nor the offered technological potential. The main reason for this lag is that traditional software engineering approaches cannot satisfactorily handle all of electronic services lifecycle aspects. In this paper we present experiences from the Greek Ministry of Finance's e-services lifecycle, and propose a new approach for handling e-service projects. The proposed approach has been used successfully for extending existing services, as well as developing new ones. © Springer-Verlag Berlin Heidelberg 2002

Applying optical reconfiguration on ATM switch fabrics

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Tape SCSI monitoring and encryption at CERN

CERN currently manages the largest data archive in the HEP domain; over 180PB of custodial data is archived across 7 enterprise tape libraries containing more than 25,000 tapes and using over 100 tape drives. Archival storage at this scale requires a leading edge monitoring infrastructure that acquires live and lifelong metrics from the hardware in order to assess and proactively identify potential drive and media level issues. In addition, protecting the privacy of sensitive archival data is becoming increasingly important and with it the need for a scalable, compute-efficient and cost-effective solution for data encryption. In this paper, we first describe the implementation of acquiring tape medium and drive related metrics reported by the SCSI interface and its integration with our monitoring system. We then address the incorporation of tape drive real-time encryption with dedicated drive hardware into the CASTOR [1] hierarchical mass storage system