The backlog upon examination quickly becomes more complicated as demands upon it increase. The 3 notable demands that increase the complexity of the work we are managing is..

1. Scaling the teams
2. Concurrency of work in motion
3. Complexity of the domain

A Scrum Team‘s work is managed with a Product Backlog  (“Backlog”), which is a prioritized list  of Product Backlog Items (“PBIs”, “Backlog Items, or simply “Items”).  When the list is small it is just a straight list of things, as it grows we add grouping mechanisms to organize many little things and help us keep track.

The art of Backlog Management as with any complex endeavor is to keep things simple. Keeping things as simple and straightforward as possible is the job of both the Product Owner and Scrum Master.