Take a look at your weekend to-do list. It probably involves multiple stops at a variety of different stores for a number of varied products. While this use to be the norm, megastores like Wal-Mart and others have made it easy for customers to purchase all the products they need in one convenient place. Everything from groceries to clothing to automotive supplies and beyond. Megamarts like this have become a one-stop shop for customers on a global scale.
The same can be said of online booking engines. For travel agents, there once was a time when multiple interfaces or systems would have to be used in order to search for available bookings, view inventory, coordinate with the client or customer, and finally distribute confirmations or other necessary documents. As online booking sites and other methods of travel bookings rose to prominence, travel agents were significantly hampered by the lack of maneuverability and agility associated with using multiple systems or platforms to complete relatively simple operational tasks.