This circle-spoke diagram sample illustrates the target market concept.
"A target market is a group of customers towards which a business has decided to aim its marketing efforts and ultimately its merchandise. A well-defined target market is the first element to a marketing strategy. The marketing mix variables of product, place (distribution), promotion and price are the four elements of a marketing mix strategy that determine the success of a product in the marketplace." [Target market. Wikipedia]
The hub-and-spoke diagram example "Target market" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Circle-Spoke Diagrams solution from the area "What is a Diagram" of ConceptDraw Solution Park.