It is one of the important software engineer entry-level interview questions. QFD (Quality Function Deployment) refers to the process of translating a user's needs into a technical requirement that can be implemented in the software. The purpose of the software engineering process is to maximize user satisfaction as much as possible. QFD works by having the company identify its customers' needs and then using those needs to guide the development of the product. The company's engineers and designers will then prioritize these needs before designing a solution. The process helps to ensure that the designed product meets customer expectations by providing feedback throughout the design process.