CashFlow, A Visualization Framework for 3D Flow - Studierstube ...

Related Work2.1. Data Flow Models2.1.3 Object Oriented Visual Programming [1988]A development towards an abstract view of the data flow model was the Fabrik framework[IWC + 88]. Figure 2.7 shows a screen shot of that framework which is similarto ThingPad. The data flow model used in the Fabrik framework was however moreobvious to the user. The visual components and the paradigms used were lent fromelectrical engineering.Figure 2.7: Data flow of Fabrik framework [IWC + 88]: Components are linked to form a bar chart. Top leftitem provide values for bar chart. Middle item labeled "15" is a zero–shift. Lowest item labeled "250" isused to translate the bars.The Fabrik framework is also an example for object–oriented visual programming.An introduction to object-oriented visual programming was published byBurnett [Bur94]. Several components are combined using a visual interface. Thecomponents are symbolized by icons of fields. Several icons are connected to form adirected acyclic graph inside a visual editor An example of such a directed acyclicgraph is shown in figure 2.8 on page 13. The graph represents the data flow model.Object–oriented visual programming mainly consists of two linked levels:• Verbal programming objectA programming object is a created in a verbal programming language.• Application & visual editorApplications are created by linking together programming objects using a visualeditor.It is also common to visualize relations of applications or source code using a varietyof diagrams and tools. For example Borland’s Together R○ [Tog02] 6 is capable to6 Borland R○Together R○ details at http://www.borland.com/together/12