EPSS Revisited is an essential reader for students and practitioners of performance-centered design (PCD). Its chapters support each element of the performance-centered systems development lifecycle. From job aids and "bolt on" EPSS to ground-up enterprise performance-centered systems, the reader will find gems in terms of methodology, industry trends, and a plethora of real-world examples of PCD. Practitioners of the constituent disciplines - cognitive science, instructional systems development, user-centered design, total quality management, and software engineering - will discover where their practices merge and overlap with PCD. There are chapters that explore the possibilities of expanding the PCD practice to include design principles of apparent unrelated fields like video game design. The best and brightest come together in roundtable discussions and interviews on the state of the PCD practice and the evolution of Knowledge Management as an integral component of PCD, including Donald Norman, Gloria Gery, Barry Raybould, Bert Huber, Douglas Weidner, Hal Christensen, and Stan Malcolm. And the winners of the annual PCD Awards - those who have created real systems that are in production showing remarkable compression of time-to-competency and day-one performance - are showcased in the book. EPSS Revisited promises to be the seminal work on ensuring business and organizational performance through human performance in our ever-growing world of computer-mediated knowledge work.