While Grid technologies are maturing rapidly, there still remains a shortage of real Grid applications. One important reason is the lack of simple and high-level application programming interfaces to the Grid, bridging the gap between existing Grid middleware and application-level needs. The Grid Application Toolkit (GAT), as currently developed by the EC-funded project GridLab [1], provides a ...

As XML becomes ubiquitous, there are a growing number of applications that utilize it. Most of such applications working with some kinds of XML storages, in particular with Native XML Databases, need to perform navigation over XML data retrieved from the database. The Application Programming Interface with efficient navigational facilities, that XML DBMS must provide these applications with, is...

OpenMP provides a portable programming interface for shared memory parallel computers (SMPs). Although this interface has proven successful for small SMPs, it requies greater flexibility in light of the steadily growing size of individual SMPs and the recent advent of multithreaded chips. In this paper, we describe two application development experiences that exposed these expressivity problems...

The Aimms package integrates externally supplied solution algorithms for mathematical programming and constraint programming with model development, application integration, and application deployment. In this context, some aspects of the technical realization of the extension of the AIMMS package with a CP interface will be discussed: – Element variables are an abstraction of integer variables...

Existing metadata schemes and content management systems used by museums focus on describing the heritage objects that the museum holds in its collection. These are used to manage and describe individual heritage objects according to properties such as artist, date and preservation requirements. Curatorial narratives, such as physical or online exhibitions tell a story that spans across heritag...

The introduction of the Web Audio API in 2011 marked a significant advance for web-based music systems by enabling real-time sound synthesis on web browsers simply by writing JavaScript code. While this powerful functionality has arrived there is a yet unaddressed need for an extension to the API to fully reveal its potential. To meet this need, a JavaScript library dubbed WAAX was created to f...

This demo presents LODStats, a web application for collection and exploration of the Linked Open Data statistics. LODStats consists of two parts: the core collects statistics about the LOD cloud and publishes it on the LODStats web portal, a front-end for exploration of dataset statistics. Statistics are published both in human-readable and machine-readable formats, thus allowing consumption of...

The aim of the JISC Information Environment Service Registry (IESR) is to assist other applications, to discover and devolve materials that match their users’ interests in their research, learning and teaching. This paper describes the experience of using an Application Profile throughout the application development process, from initial data design, through application implementation, to scena...

GroupLab Collabrary is a toolkit for rapidly prototyping multimedia groupware. It provides a straightforward API to managing and distributing multimedia information between groupware program instances. The Collabrary also has a culture of use, where a small generic set of useful groupware programming patterns has evolved over time. In this workshop I will describe the Collabrary, what it offers...