PSA is an umbrella term for packaged applications that support the core business processes of professional services organizations (PSOs) to more efficiently utilize people. PSOs include IT-related functions (IT consulting firms, internal IT departments, and IT services organizations within ISVs), as well as management consulting, architecture/engineering/construction (A/E/C), legal, accounting and finance, media, government, and other service-oriented markets. The core business processes managed by PSA solutions include Customer Relationship Management; Opportunity Management, Resource, Engagement, Project, and Practice Management; Time and Expense Management; Partner Relationship Management; Collaboration Management; Knowledge Management; and Business Intelligence. (2001-03-25)