Re: [XP] Fixed iteration length, and hours in a day
--- Daði Ingólfsson <dadi@h...> wrote:
> I agree, but my PMs would contend that if you haven´t been
> able to finish the feature/story then we may have to slip
> our deadline to do so. This is exactly what we are doing
> right now ;-)
Can you get any useful work done in a day?
Let's say it will take two days to build a fence around our house.
Does that mean that we have to increase the number of hours in a day,
in order to be able to build the fence? No. It will just take two
days to build... the *ENTIRE* fence.
This is where the story writing gets interesting: What work *can* we
do in the first day, of a two day fence job? Maybe we could build
the front half of the fence. Maybe we could build the back half.
Maybe we could dig the holes and put in the posts and cross beams,
but not add the vertical slats or whitewash them. None of these
would "keep the dog in." But one would "make the house look nicer."
And one would "give you a good clear idea of where the fence will be,
how high it will be, and what you can see over it."
A partial fence may not provide some particular value that you've
decided that you need that can't be provided with anything other than
a fully completed fence. But that does not mean that the fence,
after the first day, can never provide any value at all.
... There are a few benefits to fixed length iterations. --Many developers are poor at estimating time scales beyond two weeks. If a user story is too large,...
Tim Haughton (OmniBus...
tim.haughton@...
Dec 5, 2003 9:02 am
Comments inline. ... From: Tim Haughton (OmniBus - Stanford) [mailto:tim.haughton@...] Sent: 5. desember 2003 09:02 To:...
Daði Ingólfsson
dadi@...
Dec 5, 2003 9:39 am
... I think this will be crucial to your success. A smaller user story has a much better chance of being implemented on time than a big cumbersom chunk of...
Tim Haughton (OmniBus...
tim.haughton@...
Dec 5, 2003 10:00 am
... From: Tim Haughton (OmniBus - Stanford) [mailto:tim.haughton@...] Sent: 5. desember 2003 10:00 To: extremeprogramming@yahoogroups.com Subject:...
Daði Ingólfsson
dadi@...
Dec 5, 2003 11:04 am
... wrote: <snip/> ... afraid ... is that ... where one ... Could you say a little more about the customer? Is this development for an internal customer? COTS?...
... functionality ... None of us like it. And it's the PM's job to push for completions. Frankly, I'd rather have a reduced-functionality-but-functional...
... A "reduced functionality set" which is expanded upon every 2 weeks instead of the "full functionality set" which is released "god knows when". In my...
... From: John Brewer [mailto:jbrewer@...] Sent: 5. desember 2003 10:39 To: extremeprogramming@yahoogroups.com Subject: Re: [XP] Fixed iteration length ...
Daði Ingólfsson
dadi@...
Dec 5, 2003 11:09 am
... I think John pointed out that the developers will have a better feel of how much work they can do in a very familiar time box size. So there is more chance...
Tim Haughton (OmniBus...
tim.haughton@...
Dec 5, 2003 11:18 am
From: "Daði Ingólfsson" <dadi.at.hugur.is@...> Sent: Friday, December 05, 2003 3:29 AM Subject: [XP] Fixed iteration length Hi, I...
... From: Tim Haughton (OmniBus - Stanford) [mailto:tim.haughton@...] Sent: 5. desember 2003 11:19 To: extremeprogramming@yahoogroups.com Subject:...
Daði Ingólfsson
dadi@...
Dec 5, 2003 11:34 am
... PMs when ... this and ... Well, if the PMs created and promulgated the plan without estimates or confirmation from the developers, or refused to reflect...
... From: yahoogroups@... [mailto:yahoogroups@...] Sent: 5. desember 2003 11:26 To: extremeprogramming@yahoogroups.com Subject: Re: [XP]...
Daði Ingólfsson
dadi@...
Dec 5, 2003 11:42 am
... True. The skill is in breaking down features into sub-features //in such a way that each DOES represent useful functionality//. We are going to break the...
... Can you get any useful work done in a day? Let's say it will take two days to build a fence around our house. Does that mean that we have to increase the...
... Umm ... the useful functionality is that together they build the larger piece. When you build a house you break up everything that is in that house into...
Craig Larman's book on "Agile and Iterative Development: A Manager's Guide" has a good writeup of the merits of "timeboxing" vs. "functionality-boxing." It...
... From: John Brewer [mailto:jbrewer@...] Sent: 5. desember 2003 11:36 To: extremeprogramming@yahoogroups.com Subject: Re: [XP] Fixed iteration length ...
Daði Ingólfsson
dadi@...
Dec 5, 2003 11:48 am
... It's worth reiterating - keeping time boxes fixed guarantees that you will deliver software. Extending them doesn't guarantee you'll deliver anything. ...
Tim Haughton (OmniBus...
tim.haughton@...
Dec 5, 2003 11:58 am
From: "Daði Ingólfsson" <dadi.at.hugur.is@...> Sent: Friday, December 05, 2003 6:41 AM Subject: RE: [XP] Fixed iteration length ... ...
... Do your PM's believe the customer needs to use the new version in production after each iteration? They don't. The software should run after each...
... From: Doug Swartz [mailto:daswartz@...] Sent: 5. desember 2003 12:47 To: yahoogroups@... Subject: Re[2]: [XP] Fixed iteration length ... ...
Daði Ingólfsson
dadi@...
Dec 5, 2003 1:25 pm
... From: Jeff Nielsen [mailto:jeff.nielsen@...] Sent: 5. desember 2003 11:47 To: extremeprogramming@yahoogroups.com Subject: Re: [XP] Fixed...
Daði Ingólfsson
dadi@...
Dec 5, 2003 12:51 pm
... From: Tim Haughton (OmniBus - Stanford) [mailto:tim.haughton@...] Sent: 5. desember 2003 11:59 To: extremeprogramming@yahoogroups.com Subject:...
Daði Ingólfsson
dadi@...
Dec 5, 2003 12:55 pm
... From: yahoogroups@... [mailto:yahoogroups@...] Sent: 5. desember 2003 12:21 To: extremeprogramming@yahoogroups.com Subject: Re: [XP]...
Daði Ingólfsson
dadi@...
Dec 5, 2003 1:03 pm
... From: Ron Jeffries [mailto:ronjeffries@...] Sent: 5. desember 2003 12:40 To: extremeprogramming@yahoogroups.com Subject: Re: [XP] Fixed...
Daði Ingólfsson
dadi@...
Dec 5, 2003 1:21 pm
... From: Kiel Hodges [mailto:kielhodges@...] Sent: 5. desember 2003 14:45 To: extremeprogramming@yahoogroups.com Subject: Re: [XP] Fixed iteration...
Daði Ingólfsson
dadi@...
Dec 5, 2003 3:38 pm
... .> ... are ... planning ... home from ... ;-) ... development ... government ... authority, has ... project ... threw ... then ... for the ... You have a...