This document discusses the history and evolution of enterprise resource planning (ERP) systems and how they led to the development of professional services automation (PSA) and services resource planning (SRP) systems. It provides forecasts for growth in the SRP market and describes the types of companies that use SRP solutions. The document outlines key business challenges for professional services firms and how SRP systems can help address issues related to project and resource management, managing complexity, and enabling end-to-end business processes. It also discusses how cloud-based SRP applications provide benefits for professional services businesses with mobile and dispersed workforces.