A Portal based interface for compositing multiple streams of experimental data to video

Abstract

As an extension to our work on portals and portlets as user interfaces for remote access to instruments we are developing a set of Web Services to capture and implement tasks in a scientific workflow. The workflow described here, controlled through JSR 168 portlets, composites many different time varying data streams captured during an X-ray diffraction crystallography experiment into a single video movie useful as a permanent record. These movies are useful for debugging the experiment and as authentic research material for teaching applications. In this paper we describe the individual services, their composition into the datato- video service, and the portal interface for using the service.