Final answer:
A customer, also known as a client, is someone who pays for a product or service. They are a key stakeholder in most design projects and a critical component of the business as they are the end user of what is offered by the company.
Step-by-step explanation:
A customer is typically known as a client in a professional context. These terms are often interchangeable and refer to a person or organization that pays for a service or product. In business, the customer is essential because they are the end user of the product or service provided, making them a critical stakeholder in the design and delivery of services. Whether referred to as a client or customer, they play an instrumental role in the success and direction of a business or design project.
A stakeholder is a broader term that encompasses anyone with an interest in a project, which includes customers, but also others like government agencies, employees, or the design team itself. Indeed, for any successful design project, understanding the needs and expectations of both customers and stakeholders is fundamental.