A standard is like a cookbook for experts about a specific kind of food, for example sushi, that was written by a group of chefs. The book contains functional rules about making sushi, but without specific recipes. It is left to the chef’s creativity to get the best sushi results following the restricting rules (rules like taste, texture, quality, and so on).
The cookbook describes:
• How you can use it (eat it in a sushi bar or at a romantic dinner—the service)
• Its functional parts (different types of sushi: rice part, fish part—the network architecture)
• How you can combine this food with other foods (salads, tea—the interfaces)
• For each type of sushi, a description of required, related parameters ...