Can someone please explain H)The Requirements for subsequent provisions of products and services?
Otherwise known as a service specification or product specification.
The product maybe specified in terms of its performance ((in which case more design is needed so it can be made) or in terms of its unique attributes and characteristics or acceptance criteria. Parts of the spec may also be used for purchasing conforming materials and components.
Occasionally the product or part of the product is specified by the method necessary to make it (such as heat treatment).
A service specification is another design output that translates the customer’s objectives into your company’s service actions with, and deliverables to the customer. This would be approved by the customer and may form part of the contract.
Along with the other design outputs such as drawings, specifications are verified and validated before use. Validation may be a result of testing prototypes, trials or models with or without the customer per the approved design plan.