"My Question is about clause 8.3 Design and development of products and services, the question is: I am working in services company, is it applicable for it? Noting that my company has doing its business development through adviser”
Clause 8.3 is applicable both to products and services. Even if design and development of a service is done by an outsider, clause 8.3 is still applicable, and in that case your organization outsourced that process. Clause 8.3 is not applicable if your organization does not control the design. For example, consider a training company, it develops training services, clause 8.3 is applicable to the design of each course. Another example, an organization prepares courses under the specifications and orientation of their customer, a training company. In that case clause 8.3 is not applicable to the organization
The answer to your question depends on the scope of the company’s QMS. If the company has a “closed” scope, something like planning and conducting ISO 9001 audits and workshops, clause 8.3 is not applicable because the organization already has its range of services designed and implemented. However, if the scope is “open”, something like planning and conducting audits and workshops, clause 8.3 is applicable because tomorrow the organization may open its services to auditing according to other standards, and those new services will be within the scope of the QMS.