A new bioinformatics analysis tools framework at EMBL–EBI
Mickael Goujon, Hamish McWilliam, Weizhong Li, Franck Valentin, Silvano Squizzato, Juri Paern and Rodrigo Lopez* http://nar.oxfordjournals.org/content/38/suppl_2/W695.short
Why not useful?
The paper itself is fine, but focuses on describing a suite of tools with a common interface, rather than any specific usability analysis. There were a few brief notes about user friendly interactivity - wizards, meaningful error messages, etc. but this was not the focus of the paper.
The only other thing of any real note was that they had a UI and APIs, allowing both user friendly and programmatic access.