Conference Paper

Getting SW Engineers on Board: Task Modelling with Activity Diagrams.

DOI: 10.1007/978-3-540-92698-6_11 Conference: Engineering Interactive Systems - EIS 2007 Joint Working Conferences, EHCI 2007, DSV-IS 2007, HCSE 2007, Salamanca, Spain, March 22-24, 2007. Selected Papers
Source: DBLP

ABSTRACT This paper argues for a transfer of knowledge and experience gained in task-based design to Software Engineering. A transformation
of task models into activity diagrams as part of UML is proposed. By using familiar notations, software engineers might be
encouraged to accept task modelling and to pay more attention to users and their tasks. Generally, different presentations
of a model can help to increase its acceptance by various stakeholders. The presented approach allows both the visualization
of task models as activity diagrams as well as task modelling with activity diagrams. Corresponding tool support is presented
which includes the animation of task models. The tool itself was developed in a model-based way.

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    ABSTRACT: This paper discusses approaches for specifying workflows based on task models. These task models represent activities of stakeholders in different ways. It is shown how the development process of workflow specifications can be supported to get hierarchical, structured and sound specifications. Further on, a language CTML is introduced that was developed to specify activities in smart environment. The language has the potential to be used to specify general workflow specifications as well. It is demonstrated how cooperative work can be specified using this language.
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    ABSTRACT: In this paper, an approach to use task trees in a workflow management system (WfMS) is presented. As hierarchical models task trees capture several hierarchy levels of a workflow in one model. A workflow editor visualizes the models also as flowcharts similar to UML activity diagrams. The WfMS use these models as input and instantiates and executes them. The system is web-based and can be easily accessed by users with any browser clients. This paper motivates the approach to use task trees that produce hierarchical and structured workflow specifications. The proposed language might help end-users to better understand workflow models with its problem oriented hierarchical modeling character. Temporal operators from the task models are compared with certain operators from established workflow languages. In addition, in TTMS an instantiation time concept is implemented, where decision operators are evaluated at the very moment the process is instantiated. Consequently the task tree modeling language is enhanced for modeling decisions in the context of workflow management.
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    ABSTRACT: In this paper we propose a method to model the behaviour of task models in error situations. For these purposes we follow the idea of transactions in database systems. By encapsulating tasks in transactions the atomicity of complex tasks can be asserted. Corresponding tool support is presented which includes modelling and simulating task models. The tools themselves were developed in a model-based way.
    Engineering Interactive Systems, Second Conference on Human-Centered Software Engineering, HCSE 2008, and 7th International Workshop on Task Models and Diagrams, TAMODIA 2008, Pisa, Italy, September 25-26, 2008. Proceedings; 01/2008

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