Source: Sams Teach Yourself Networking in 24 Hours, 4th Edition by Uyless Black (2009)
Example:
If you and your design team are associated with a medium to large enterprise, it's likely you’ll need to become familiar with subnetting. This term refers to the partitioning of a network into smaller parts. One reason for subnetting is to divide the traffic such that Ethernet packet collisions don't create throughput and bottleneck problems.
Not sure what that part really means. What exactly does the author mean by a medium to large enterprise?