Grappa - the Workflow Editor


Grappa

Grappa is a graphical programming editor for Alida. It allows to graphically combine operators into more complex workflows. To this end operators are linked to nodes of a directed, acyclic graph. Each node has several ports corresponding to the underlying operator's input and output parameters. By drawing edges between ports a flow of data can be defined, which in the end results in a complete workflow acting on given input data and producing different kinds of result data.

Grappa’s main window is basically divided into two sections. On the left, the node selection menu is visible, while on the right the workbench area is located. In addition, the window features a menubar for configuring Grappa, loading and saving workflows, and accessing the online help. At the bottom of the window a panel displaying status and progress messages is available.

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