We describe the results of several experiments with interactive interfaces for native and L2 English students, designed to collect implicit feedback from students as they complete a reading activity. In this study, implicit means that all data is obtained without asking the user for feedback. To test the value of implicit feedback for assessing student proficiency, we collect features of user b...

An analysis of how visual modeling of structure and dynamic behavior of a multimedia application differs from modeling conventional software yields that aspects of the graphical user interface and time-dynamic behavior ought to be integral parts of a coherent multimedia application model. In this sense, we extend the model-view-controller paradigm towards multimedia. As a result, we present OMM...

A domain-specific language provides domain experts with a familiar abstraction for creating computer programs. As more and more domains embrace computers, programmers are tapping into this power by creating their own languages fitting the particular needs of the domain. Graphical domain-specific modeling languages are even more appealing for non-programmers, since the modeling language construc...

The value of business process models is dependent not only on the choice of graphical elements in the model, but also on their annotation with additional textual and graphical information. This research discusses the use of text and icons for labeling the graphical constructs in a process model. We use two established verb classification schemes to examine the choice of activity labels in proce...

fC :M C → and M m f m c c c C = ∈ = ∈ M , C a f n s . Model classification is a way to structure and handle knowledge about systems. Using the models external message interface as the classification criterion lays emphasis on the fact that atomic and coupled DEVS models are modular and interchangable model components. Interface-Oriented Classification is a means to formalize the conditions of c...

In the lifelong learning context, the efficiency of learning is measured according to the users’ achievement of the target competences. However, in a virtual learning environment supporting the competence development process ends up being an elusive and time-consuming task for teachers or instructional designers. In this paper, we introduce Designer, an approach for teachers to help them in des...

This article presents a framework for the development of hypermedia systems, based on systematic modelling approaches. These introduce models at three abstraction levels (conceptual, navigation and presentation). An objectoriented approach, UWE, proposing UML extensions was adopted. The work described in this paper reports a solution for an integrated and consistent translation of those models ...

It is becoming increasingly easy to capture lifelong data about a person. This creates the potential for valuable new ways for people to self-monitor diverse aspects their lives. If people are to do this effectively, we need to ensure that relevant aspects of lifelong user models are available to the user, in a form that is meaningful. Beyond this, current research indicates that most people ne...

Task and model-based design techniques support the design of interactive systems by focusing on the use of integrated modelling notations to support design at various levels of abstraction. However, they are less concerned with examining the nature of the design activities that progress the design from one level of abstraction to another. This paper examines the distinctions between task and mo...