Mike, I have a question about estimates - this may well be something that will be covered in Chapter 8 - "Re-estimating", but here it is anyway. Suppose the...
... [I know you asked Mike, but I thought I'd throw in my $0.02.] We want our story backlog and velocity to reflect reality. I usually encourage the team to...
Mike, On reading XP Explained 2nd ed, I note that Kent has moved away from the practice of estimating in ideal days as estimates in real time are easier for...
... Paul, Thanks for that. Don't worry, I'm open to anyone's view on the situation! It seemed to me that there were two opposing forces in this problem: On...
... Oh gosh, I don't think we should ever ignore experience! =-O An important thing is that all the stories currently in the backlog need to maintain a...
Hi Chris-- Paul's given an excellent answer to this but I'll add in my 1 cent or so of additional comments. (Great answer, Paul--thanks for contributing it.) ...
Chris-- An additional comment after reading your reply to Paul: This issue of feeling pressure or that stories are inconsistently estimated is why I advocate...
Hi Rachel-- Yes, good point and I will have to mention that somewhere. I don't really agree with him on that point. There are many, many problems with...
... Oh gosh, I don't think we should ever ignore experience! =-O An important thing is that all the stories currently in the backlog need to maintain a...
I have sometimes found clients have a hard time getting the concept of ideal time - also the point that comparing estimating units between teams is like...
Mike, Thanks for your replies. I probably shouldn't have mentioned ideal days at all in my original question! I completely agree about only using them as a...
[Sorry about the double post on my last message. Mike and I thought the moderation mechanism had eaten it, but it seems it was just running behind on...
Getting companies to not compare velocities is harder, I've found, than getting them to understand ideal time. There's an innate desire to want to compare, I...
Yes, when it's a class of stories it's relatively straightforward to re-estimate just that class of stories. That's the classic example of when the relative...
Two new chapters are finally available. The first is either all or part of the preface or becomes Chapter 1. It's "Why Estimate and Plan" and the second...
Yes, I think it's because people tend to underestimate. --Mike Cohn Author of User Stories Applied for Agile Software Development www.mountaingoatsoftware.com ...
I have a question on Use Case Points. For example, When I say a system is of 100 use case points and I use a productivity number of let us say 15 hours/ucp,...
It all depends where you got your numbers from. When you estimated how many points your use cases would take to develop, were you just estimating the software...
... As Rachel already mentioned, your use case points and productivity number can include whatever you have defined them to include. Are you getting the...
Raj-- Karner's original recommendation of 20 hours per use-case point was for (as Paul points out) from use case to finished product, so it includes ...
Mike, Paul and Rachel: Thanks for your response. I was trying to co-relate UCP as a measure ala' FPs. In my current organization, we typically look at the size...
Hi Raj-- I struggle with whether to include the chapter on use-case points in the planning book. They are worth knowing about but I've experienced similar ...
Some comments on chapter 8. When to re-estimate: I have encountered some situations where estimates have been made by people who do not know the code, stories...
Hi Rachel-- Thank you for all the comments. You make some good points--particularly about spiking before estimating if necessary. I agree too with the point ...
Re-estimating is a thorny subject and a slippery slope, and I think the chapter does a great job of sorting out the issues. The one question I have is, would...
Hi Lisa-- I would re-estimate any time that (a) my features/stories needed it *and* (b) there was going to be sufficient return for the investment in greater ...
I've been wrestling with a question about how to organize the book and would like to solicit everyone's feedback. I'm really trying to make the point that...
... For starters, how about including a motivation such as the one above in the introduction chapter of the book. ( explaining the structure you'll eventually ...
If you use one approach in the body of the book and cover the differences at the end, then I think it would be a good idea to briefly mention all three ...
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