An engagement model is a plan that determines the relationship between a business or vendor and an outsourcing provider or supplier.It involves the level of control, responsibilities, and commitment each party has, and how payments will be made.There are three kinds of engagement models:1. Fixed-price - refers to a fixed budget for a project, no matter how long it takes to complete it.2. Time and Material - the budget is invested in the time and resources it will take to complete a project.3. Dedicated Team - the outsourcing company provides a dedicated team to work on a specific project.