Because of the multi-stage business analysis steps involved right from the beginning of the PCD life cycle, it is believed to achieve the highest levels of business-IT alignment that is possible through UI.
This method is aimed at enterprise applications where there is a business process involved.
Unlike content oriented systems such as websites or portals, enterprise applications are built to enable a company's business processes.
Enterprise applications often have a clear business goal and a set of specific objectives like- improve employee productivity, increase business performance by a certain percent, etc.
For example: A call center software used by a customer support agent, if designed for high process-UI alignment will achieve tremendous agent productivity improvement and call center performance; which is not likely to be seen if it were designed only for user satisfaction, ease of use, etc.