The OSI model decribes the layered functions of a network as:

• Layer 7: Application layer
• Layer 6: Presentation layer
• Layer 5: Session layer
• Layer 4: Transport layer
• Layer 3: Network layer
• Layer 2: Data link layer
• Layer 1: Physical layer

Sometimes the 7 layer OSI model is “extended”, in a humorous way, to cover all the frustrating non-technical issues that are encountered by us in the business. Hence, the extended OSI model adds layers 8 to 10:

• Layer 10: Political layer
• Layer 9: Financial layer
• Layer 8: User layer

10layers.com aims to cover the emerging next generation internet from the physical to the political layers.

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