Story Points

User Stories typically are estimated in so-called Story Points. This is a new, fictitious unit for estimation.

For estimating the size of a User Story these dimensions are taken into account:

  • Effort
  • Complexity
  • Risk

 
Story Points usually are limited to the simplified Fibonacci numbers:
1 – 2 – 3 – 5 – 8 – 13 – 20 – 40 – 100

As you will recognise, the red numbers are not in the original Fibonacci sequence. This is pure simplification.