AllocPSA is a complete, organisation-wide business solution that integrates all practice groups and functions in a professional services company, into a single computer system; allocPSA consists of a set of tightly integrated software modules for business areas such as resource planning, project management, time and expenses, integration with existing invoicing, book-keeping and payroll systems, issue tracking, messages, announcements, reminders and knowledge management, collaboration, services supply chain, human resources and staff skilling and management of cost-centres