The emphasis is on TIME and MONEY. You as a customer know how much it is going to cost and how soon are you going to get the deliverable. Predictability and assurance is the features of this model.
In this model you and TRUST agree to a fixed price and timelines for a project at the beginning of a project. This is a popular engagement model which clients feel comfortable dealing with as it gives them a budget and timeline that is fixed. TRUST is adept at delivering a high quality software in time and within budget.