Which joint activity performed by a service provider and service consumer ensures continual value co-creation?

A customer is a person who defines the requirements for a service and takes responsibility for the [?] of service consumption.

What should remain constant within an organization, even when the organization's objectives change?

Which practice has the purpose of ensuring that the organization's suppliers and their performance and
managed appropriately to support the provision of seamless, quality products and services?

Which statement about problems is CORRECT?