SUMMARYThe U.K. e-Science Programme is a £250 million, five-year initiative which has funded over 100 projects. These application-led projects are underpinned by an emerging set of core middleware services that allow the coordinated, collaborative use of distributed resources. This set of middleware services runs on top of the research network and beneath the applications we call the 'Grid'. Grid middleware is currently in transition from pre-Web Service versions to a new version based on Web Services. Unfortunately, only a very basic set of Web Services embodied in the Web Services Interoperability proposal, WS-I, are agreed by most IT companies. IBM and others have submitted proposals for Web Services for Grids-the Web Services ResourceFramework and Web Services Notification specifications-to the OASIS organization for standardization. This process could take up to 12 months from March 2004 and the specifications are subject to debate and potentially significant changes. Since several significant U.K. e-Science projects come to an end before the end of this process, the U.K. needs to develop a strategy that will protect the U.K.'s investment in Grid middleware by informing the Open Middleware Infrastructure Institute's (OMII) roadmap and U.K. middleware repository in Southampton. This paper sets out an evolutionary roadmap that will allow us to capture generic middleware components from projects in a form that will facilitate migration or interoperability with the emerging Grid Web Services standards and with ongoing OGSA developments. In this paper we therefore define a set of Web Services specifications, which we call 'WS-I+' to reflect the fact that this is a larger set than currently accepted by WS-I, that we believe will enable us to achieve the twin goals of capturing these components and facilitating migration to future standards. We believe that the extra Web Services specifications we have included in WS-I+ are both helpful in building e-Science Grids and likely to be widely accepted.

We have developed a web-based architecture and user interface for fast storage, searching and retrieval of large, distributed, files resulting from scientific simulations. We demonstrate that the new DATALINK type defined in the draft SQL Management of External Data Standard can help to overcome problems associated with limited bandwidth when trying to archive large files using the web. We also show that separating the user interface specification from the user interface processing can provide a number of advantages. We provide a tool to generate automatically a default user interface specification, in the form of an XML document, for a given database. This facilitates deployment of our system by users with little web or database development experience. The XML document can be customised to change the appearance of the interface.

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Reformatting information currently held in databases into Web pages requires signi cant e ort in both creating the pages initially and their subsequent maintenance. We avoid these costs by coupling a Web server indirectly to a multimedia database using additional software we have developed. This software layer translates Web requests for information into SQL queries, and generates Web pages dynamically to display the results to the user. The method we have developed allows users to query the database directly and browse for information.

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Today, most countries in the global north have developed and implemented urban growth management (UGM) programs and policies aimed at mitigating the impacts and negative externalities of urban sprawl and achieving a more compact urban form. However, there is substantial disagreement about their effectiveness and effects of these programs. In this paper, we systematically review the extensive literature on growth management to better understand a) the current state of the practice of UGM, and b) the determinants of successful UGM implementation. Compared to previously available literature syntheses, which focus heavily on North American research, we also take into account studies based in Europe and some Asian and Oceanic countries. From this literature, we identify several key factors to successful growth management implementation: a multi-level governance approach, intersectoral policy coordination, a regionally adapted mix of policy instruments, balancing development needs with preservation goals, and the ability to develop positive narratives around growth management.