Quality function deployment (QFD) is a quality management technique that translates the needs of the customer into technical requirements for software. Quality professionals refer to QFD by many names, including matrix product planning, decision matrices, and customer-driven engineering. Whatever you call it, QFD is a focused methodology for carefully listening to the voice of the customer and then effectively responding to those needs and expectations. QFD identifies three types of requirements:
Normal requirements. The objectives and goals that are stated for a product or system during meeting with customer. If these requirements are present, the customer is satisfied.(Minimal Functional and Performance)
Expected requirements. These requirements are implicit to the product or system and may be so fundamental that the customer does not explicitly state them. Their absence will be a cause for significant dissatisfaction.(important implicit requirements that is ease of use)
Exciting requirements. These features go beyond the customer’s expectations and prove to be very satisfying when present.(highly prized and valued)
Functional deployment is used to determine the value of each function that is required for the system. Information deployment identifies both the data objects and events that the system must consume and produce. These are tied to the functions. Finally, task deployment examines the behaviour of the system or product within the context of its environment. Value analysis is conducted to determine the relative priority of requirements determined during each of the three deployments.
Function Deployment : Determines value of required Function
Information Deployment : Focuses on data objects and events produced or consumed by system
Task Deployment : Product Behaviour and implied operating environment
Normal requirements. The objectives and goals that are stated for a product or system during meeting with customer. If these requirements are present, the customer is satisfied.(Minimal Functional and Performance)
Expected requirements. These requirements are implicit to the product or system and may be so fundamental that the customer does not explicitly state them. Their absence will be a cause for significant dissatisfaction.(important implicit requirements that is ease of use)
Exciting requirements. These features go beyond the customer’s expectations and prove to be very satisfying when present.(highly prized and valued)
Functional deployment is used to determine the value of each function that is required for the system. Information deployment identifies both the data objects and events that the system must consume and produce. These are tied to the functions. Finally, task deployment examines the behaviour of the system or product within the context of its environment. Value analysis is conducted to determine the relative priority of requirements determined during each of the three deployments.
Function Deployment : Determines value of required Function
Information Deployment : Focuses on data objects and events produced or consumed by system
Task Deployment : Product Behaviour and implied operating environment
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