Robert W. Scheifler, is a Senior Staff Engineer and one of the original architects of Jini technology with Sun Microsystems, where he has been responsible for the design and implementation of the lookup service and the associated discovery protocol and attribute schema. Before joining Sun, he spent nine years as Director and then President of the X Consortium, a non-profit organization devoted to the development and evolution of the X Window System. He was chief architect of the X Window System protocol, and created the Consortium originally while a principal research scientist at the MIT Laboratory for Computer Science.