Comments on: How much does a Story Point cost?

By: shilpa

shilpa — Sat, 05 Jul 2008 06:17:44 +0000

we calculate story pionts relatively and number of story completed per iteration is velocty. per iteration cost is okay bu an iteration may have stories with different story points so we can not have same cost for every story in iteration

By: Kane Mar

Kane Mar — Fri, 04 Apr 2008 04:51:06 +0000

>We have been told (maybe incorrectly) that story points are an
> index of complexity, not time.

I believe that is an incorrect interpretation of Story Points. In a recent email on the Trainers email list, Mike Cohn (author of Agile Estimating and Planning) said:

“… there should be no “two schools of thought” as to what we should estimate. There is no point in estimating complexity except as complexity influences the effort involved. Story points should represent an estimate of how long something will take to do.”

>Our, managers then came our with calculations similar to yours
> saying how many story points we are expected to do per sprint.

I’m sorry to hear this. The teams velocity is what is it … in other words, it cannot be determined ahead of time.

From what you’ve said, I imagine that your management is using a projects budget as the starting point and are working backwards to derive a “expected velocity.” This is purely fiction and should be reject out of hand without further consideration.

By: Bob

Bob — Thu, 03 Apr 2008 23:58:17 +0000

I am a member of a scrum team and am completely lost. We have been told (maybe incorrectly) that story points are an index of complexity, not time.

Our, managers then came our with calculations similar to yours saying how many story points we are expected to do per sprint.

This seems completely crazy to us, as we reported extremely long simple tasks (and therefor costly in terms of man hours), and short simple talks as similar story points.

By: Paul, Kerri and The Boys » links for 2007-01-06

Paul, Kerri and The Boys » links for 2007-01-06 — Sat, 06 Jan 2007 05:19:36 +0000

[...] How much does a Story Point cost? « Kane Mar (tags: agile blogs) [...]

By: David Tannen

David Tannen — Thu, 21 Dec 2006 21:42:26 +0000

I think you could use the first Iteration cost as a ‘startup’ cost. The team is forming, storming, & hopefully norming during that time. I also think using two values (low & highest, throwing out the first iteration value) is a very good idea.

Thank you this is very helpful.