TX-RAMP Scoping Tool for Vendors Question Title * 1. Through which service model is the IT product or service delivered? For more information, please reference section 6 - Scope in the TX-RAMP Program Manual.*Note: Service models are defined in NIST Special Publication 800-145 Software-as-a-Service (SaaS) Platform-as-a-Service (PaaS) Infrastructure-as-a-Service (IaaS) Next