| Ive always held the belief that story points were specific to a team, and a result of the work that specific team does and/or services, products and customers they support, which was a why comparing cross teams is a huge no no! But story points themselves are actually guesses, and are never a true reflection of the work undertaken post mortem - and rarely if ever get reevaluated with 'correct values' mainly because it's really difficult to do that - it's another guess really. I think any attempts to measure the accuracy of guesses on imaginary relative units, specific to a team, with deliberately obfuscated and difficult to reconcile units is futility by definition. Instead companies have started to see the light of measurement using standard units of time and tracking the start to finish time including the states of tickets - Flow metrics. Which is all fine, however you still have the original problem - unless you strictly compare very similar tasks perhaps done by similar engineers in terms of tenure, skill level and maturity, and maybe other factors, you still can't directly compare tasks across teams. There still needs to be consideration of the make up of a team to get an understanding of skill level and experience. Ive personally witnessed teams with graduates in them and people with 20 years experience completing very similar tasks and the difference is astonishing. |