Productive-interface (Pi) engineering is a business-driven approach to enterprise software user interface design. Radically different from the traditional user-centered approaches, Pi engineering focuses on user productivity gains and improved business performance rather than just ease-of-use and user-satisfaction. Aptly named the Architecture-First model, the process uses a unique first-things-first approach. The user interface architecture is fundamental, and is designed first. Only after the user interface architecture is decided, do we start working on other design aspects. A part of this model is called UCID and is used by some companies in the US .

The expertise is based on business and engineering. Most importantly, the results achieved are different: customers receive dramatic user productivity gains.

Pi engineering is tightly coupled with Cognizant's mature software process.

A holistic approach, Process-Efficient Technology unifies the streamlining of an IT application and its touch points. The result is measurable new improvements in business process performance.

Although an emerging discipline, Process-Efficient Technology has been used in dozens of application development and reengineering projects. In these projects, Process-Efficient Technology helped deliver cycle-time reductions and streamlining of business processes.