The Australian Government intends to mandate filtering at the Internet Service Provider (ISP) level to provide a “clean feed” to all subscribers. It claims the current arrangement that includes optional filtering at the Personal Computer (PC) level has failed to protect children from unsuitable Internet content. This paper addresses three key questions that are relevant to IT professionals ever...

We outline a methodology for the modular speciication of telephone services within rst-order linear-time temporal logic. Typically, the services ooered by a telephone system consist of a basic service and several optional additional services, such as automatic callback, redirection, etc. We argue informally that temporal logic provides a exible formalism for the speciication of individual servi...

BACKGROUND Parents are increasingly faced with decisions about optional newborn bloodspot screening (NBS) despite no consistent policy for communicating information about such testing. We examined whether framing optional NBS alongside mandatory NBS influenced intention to participate in optional NBS. METHODS For this Internet-administered study, 2,991 adults read a hypothetical vignette in w...

The Distributed Video Server DVS system provides a comprehensive solution for the management and distribution of a major future electronic commodity service Video on Demand VOD Key contributions of DVS include a scalable architecture that combines the global accessibility of the Internet with an acceptable quality of service through an optional private high speed backbone novel adaptive algorit...

With the development of web services technology, web services have changed from single to composite services. Privacy protection in composite services is becoming an important issue. P3P (platform for privacy preferences) is a privacy policy language which was designed for single web services. It enables service providers to express how they will deal with the privacy information of service con...

This paper reports from an initial stage of a Swedish project concerning mobile IT support for tourism. From three workshops with actors within the tourism sector we identified barriers and challenges in designing IT support for all phases of the tourist life cycle. Thereafter we designed and evaluated a mobile tourism guide in real life setting with six different user groups. The research ques...

The proliferation of the Open Archive Initiative Protocol for Metadata Harvesting (OAI-PMH) has resulted in the creation of a large number of service providers, all harvesting from either data providers or aggregators. If data were available regarding the similarity of metadata records, service providers could track redundant records across harvests from multiple sources as well as provide addi...

It it is often useful to distinguish between the definition of a core software system and features that may apply to it. A feature is an optional extension of the original system. Systems need to be adapted in order to take on new features. Distributed heterogeneous software is particularly hard to adapt for deployment in disparate execution environments. We introduce the concept of an adaptati...