The document introduces the Customer Value Method for developing high value customer solutions. The Customer Value Method includes a Customer Model and Customer Proposal. The Customer Model provides a framework to understand the customer's needs from both the customer and supplier perspectives. It considers the components, functions, revenues, and expenses needed to create an effective customer solution. The Customer Proposal turns the value proposition into a practical solution proposal to involve the customer in the development process. Using the Customer Value Method leads to more collaborative and open solution development that better meets customer needs and results in higher value solutions.