A small-scale example application is used to introduce a domain-specific notation for objectoriented user interfaces. This paper compares traditional software development (no abstract modelling), standard Unified Modelling Language (UML)-based software development, and software development based on domain-specific modelling. To allow a comparison, Lines of Code (LOC) serve as a measure of devel...

Simple communication patterns often do not suffice for modelling the interplay between different business processes. In this paper, we introduce and formally specify an event-based communication concept for business process modelling, constituted by event trigger properties and event pools. We claim that this concept provides a much bigger scope for modelling communication than currently availa...

The Web Services Modelling Framework (WSMF) and the Web Services Modelling Ontology (WSMO) provide a unique, highly innovative perspective onto Semantic Web and Web Service technologies. We present in this paper the SWWS Studio – a prototype that supports and elaborates that perspective, making the technology easy to use and transparent for the end user. At present the SWWS Studio is comprised ...

This paper describes the use of an accretion/resolution user modelling representation to model people, places and things. We explain the motivation for the key properties of the representation, especially those of particular importance for ubiquitous computing: firstly, for flexibility in interpreting the typically noisy and potentially conflicting evidence about users’ locations; secondly, to ...

Streaming video continues to experience unprecedented growth. This underscores the need identify user-centric performance measures and models that will allow operators satisfy requirements for cost-effective network dimensioning delivered with an acceptable level of user experience. paper presents analysis two novel metrics in context fixed capacity links: (i) average proportion a video’s playi...

The organisation management and social science literature are rich in descriptions of models relevant to the software development process. However, even the most prescriptive of these models are not specified with any great degree of formality. Nevertheless, key aspects of these models can be represented using more formal modelling approaches. This, in turn, allows the definition and developmen...

Task modelling is a widely recognized activity when designing inter‐ active applications. In this perspective, it is the meeting point between various stakeholders. However, most of the automatic environments that currently allow task modelling only support single users, thus limiting the possible interactions and discussions amongst them. In this paper we present Collaborative CTT, a new Web-b...