Gartner defines a service-centric ERP suite as comprising:
Financials, HCM and indirect procurement (administrative ERP)
PSA — includes project planning and resourcing, project management, and project accounting and billing
Specialized industry-specific modules or applications — for example, grant management in higher education and public sectors
A service-centric ERP suite must provide at least financial management functionality from administrative ERP and either PSA or industry-specific modules for at least one service-centric industry. Optionally, the vendor may provide other administrative ERP capabilities (such as HCM and indirect procurement).