Workflow Designer - A web Application for Visually Designing EEG Signal Processing Pipelines

There has been a growing demand for visual tools that can easily maintain complicated scientific workflows without detailed knowledge of methods' implementation. This paper describes the Workflow Designer - a prototype web-based application allowing drag-and-drop creating, editing, and running workflows from a predefined library of methods. Adding a new method requires a minimal effort from users. Moreover, any workflow can be exported or imported in JSON format to ensure reusability and local execution of exported JSON configurations. The Workflow Designer can be applied to any general computation if the custom method library is available. The application has been successfully tested using electroencephalographic signal processing workflows.