Professional Services Automation (frequently abbreviated to PSA) is software designed for professional services organizations, such as consultants and IT services organizations.
PSA software is used to manage the delivery of client projects, and the resources which are required for those projects, such as skilled personnel and equipment. Typically, functions include project management and documentation, time recording, billing, and reporting.
Many PSA systems are integrated with accounting, Customer Relationship Management (CRM) systems and payroll systems. Those familiar with ERP software may like to think of PSA as an ERP system for a services organization.