A Metaphor For The Layered Protocol Stack

• Business Woman A Wants to send a Document to Business Woman B about a proposed change in Business
• Business Woman B is in a different country & speaks a different language
• The message refers to technical matters so Business Woman A wants her technical staff to validate the reasoning
• It could involve legal issues so Business Woman A wants her legal staff to review the change as well
• Business Woman B will have the same technical and legal concerns and will have the same reviews conducted on her side