... explanation regarding the purpose of the feedback, the purpose of the conceptual model, some background of the research that lead to the development of the model, and key 11852 Afr. J. Bus. Manage. ... management is the manner of implementation, of expertise, paraphernalia, knowledge and modus operandi to an extensive range of activities for the fulfillment of prerequisite of the specific ... concept (either for the company or for the customer). It includes all activities from the development of an idea or a concept for a product, to the realization of the product during the production...