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During the stage of system requirements gathering, model elicitation is aimed at identifying in textual scenarios model elements that are relevant for building a first version of models that will be further exploited in a model-driven engineering method. When multiple elements should be identified from multiple interrelated conceptual models, the complexity(More)
This paper addresses the need for supporting the design of user interfaces for workflow management systems. Based on the already existing task and domain models, an approach is proposed to design a workflow model that explicitly articulates its new concepts with respect to the concepts belonging to the task and the domain, but with some extensions. The(More)
A user interface description language (UIDL) consists of a specification language that describes various aspects of a user interface under development. A comparative review of some selected user interface description languages is produced in order to analyze how they support the various stages of user interface development life cycle and development goals,(More)
This paper addresses the need for designing user interfaces (UIs) to workflow information systems by adopting a model-centric approach. We introduce a conceptual workflow model to determine system func-tionalities of workflow. The model is exploited in order to systematically derive UIs to access these functional-ities. The workflow model is recursively(More)
Many methods in the area of Human-Computer Interaction have been developed for deriving user interfaces considering individual users. However, nowadays information systems include more than single interaction, there is a need to explicitly include multi user interaction during the design process of information systems. One of this approaches are workflow(More)
A collection of user interface design patterns for workflow information systems is presented. Each Workflow User Interface Pattern (WUIP) is characterized by properties expressed in the PLML markup language for expressing patterns and augmented by additional attributes and models attached to the pattern: the abstract user interface and the corresponding(More)
OBJECTIVE Increasing evidence suggests that nitric oxide participates in the pathophysiology of intestinal barrier function/dysfunction and inflammation. Increases in inducible nitric oxide synthase (iNOS) mRNA and protein expression have been observed in colonic mucosal biopsies of adults with inflammatory bowel disease (IBD). It is unclear whether iNOS(More)
The need for accessibility evaluation tools is motivated by several endogenous and exogenous reasons coming from the end user (the designer and the developer) and companies releasing information systems. Existing evaluation tools mainly concentrate on examining the code of Web pages: Web pages more and more frequently contain non-HTML parts that entirely(More)
Task models are the cornerstone of user-centred design methodologies for user interface design. Therefore, they deserve attention in order to produce them effectively and efficiently, while guaranteeing the reproducibility of a task model: different persons should in principle obtain the same task model, or a similar one, for the same problem. In order to(More)