Comments on: The Importance of Precise Estimates http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/ Effective software development Wed, 08 Feb 2012 21:01:40 +0000 hourly 1 http://wordpress.org/?v=3.3.1 By: When differences aren’t | OpenCAP http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-115495 When differences aren’t | OpenCAP Tue, 14 Dec 2010 00:00:25 +0000 http://blog.gdinwiddie.com/?p=400#comment-115495 [...] came across an interesting blog post (http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/) about time estimation on software projects (not language related, but interesting in its own [...] [...] came across an interesting blog post (http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/) about time estimation on software projects (not language related, but interesting in its own [...]

]]> By: George Dinwiddie http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-106292 George Dinwiddie Sun, 23 May 2010 14:52:25 +0000 http://blog.gdinwiddie.com/?p=400#comment-106292 This entry <em>had</em> been republished at PM Boulevard, but it appears to no longer be there. This entry had been republished at PM Boulevard, but it appears to no longer be there.

]]> By: tom gilb http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105948 tom gilb Sun, 16 May 2010 09:46:51 +0000 http://blog.gdinwiddie.com/?p=400#comment-105948 I'll tweet to that! (author of 1976 Software Metrics) I’ll tweet to that!
(author of 1976 Software Metrics)

]]> By: George Dinwiddie’s blog » The Importance of Detailed Planning http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105870 George Dinwiddie’s blog » The Importance of Detailed Planning Thu, 13 May 2010 14:06:53 +0000 http://blog.gdinwiddie.com/?p=400#comment-105870 [...] recently wrote on The Importance of Precise Estimates.  This is a related [...] [...] recently wrote on The Importance of Precise Estimates.  This is a related [...]

]]> By: Agile Quick Links #13 – nemrac.com http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105565 Agile Quick Links #13 – nemrac.com Fri, 30 Apr 2010 03:21:43 +0000 http://blog.gdinwiddie.com/?p=400#comment-105565 [...] George Dinwiddie reminds us that estimates really are just estimates: The Importance of Precise Estimates. [...] [...] George Dinwiddie reminds us that estimates really are just estimates: The Importance of Precise Estimates. [...]

]]> By: George Dinwiddie’s blog » Projecting into the Future http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105223 George Dinwiddie’s blog » Projecting into the Future Thu, 22 Apr 2010 16:34:46 +0000 http://blog.gdinwiddie.com/?p=400#comment-105223 [...] Effective software development « The Importance of Precise Estimates [...] [...] Effective software development « The Importance of Precise Estimates [...]

]]> By: Morgan Ahlström http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105209 Morgan Ahlström Thu, 22 Apr 2010 06:42:49 +0000 http://blog.gdinwiddie.com/?p=400#comment-105209 I wonder if the people asking for precise estimates interpret the estimates from route planning software as promises too. I'd love to hear them explaining themselves to the law; - You see I had too speed up in order to get to my destination at the time promised by my GPS. :-) Great post! I wonder if the people asking for precise estimates interpret the estimates from route planning software as promises too. I’d love to hear them explaining themselves to the law;
- You see I had too speed up in order to get to my destination at the time promised by my GPS. :-)

Great post!

]]> By: Marjie Carmen http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105161 Marjie Carmen Wed, 21 Apr 2010 02:44:55 +0000 http://blog.gdinwiddie.com/?p=400#comment-105161 George, great post. I'm asked this question all the time in interviews. How do you estimate a project, a block of work, etc. and I tell them.. honestly... and you've summed it up at the end. Yet still so many people want that perfect equation..even in the presence of actual data that proves that previous estimates were always wrong.. sigh... George, great post. I’m asked this question all the time in interviews. How do you estimate a project, a block of work, etc. and I tell them.. honestly… and you’ve summed it up at the end. Yet still so many people want that perfect equation..even in the presence of actual data that proves that previous estimates were always wrong.. sigh…

]]> By: YvesHanoulle http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105144 YvesHanoulle Tue, 20 Apr 2010 17:21:37 +0000 http://blog.gdinwiddie.com/?p=400#comment-105144 Yes, people has the false idea the mor eprecise numbers are, the more accurate they are. Where in reality it is the opposite. If I tell a boss it might take between 1 and 2 years to finish a project. That estimate can be very accurate, but sure is not precise. Someone else might say 341,5 days. That estimations is very precise. But it is not more accurate. (Actually theiris a bigger chance that I'm right and he is wrong.) y Yes, people has the false idea the mor eprecise numbers are, the more accurate they are. Where in reality it is the opposite.
If I tell a boss it might take between 1 and 2 years to finish a project. That estimate can be very accurate, but sure is not precise. Someone else might say 341,5 days. That estimations is very precise. But it is not more accurate.
(Actually theiris a bigger chance that I’m right and he is wrong.)
y

]]> By: Dave Rooney http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105140 Dave Rooney Tue, 20 Apr 2010 14:28:59 +0000 http://blog.gdinwiddie.com/?p=400#comment-105140 Very nice, George, and timely! I haven't had this conversation at a client since, um, yesterday. :) Very nice, George, and timely! I haven’t had this conversation at a client since, um, yesterday. :)

]]> By: Arne Åhlander http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105134 Arne Åhlander Tue, 20 Apr 2010 10:46:40 +0000 http://blog.gdinwiddie.com/?p=400#comment-105134 Reminds me of "It's better to be roughly right, than precisely wrong." Reminds me of “It’s better to be roughly right, than precisely wrong.”

]]> By: Marko Majkic http://blog.gdinwiddie.com/2010/04/19/the-importance-of-precise-estimates/comment-page-1/#comment-105133 Marko Majkic Tue, 20 Apr 2010 10:14:32 +0000 http://blog.gdinwiddie.com/?p=400#comment-105133 Simple and great post George. Great metaphor as well. I suppose that your client doesn't have answer to the question: "Why do you need those numbers?" I guess, "false feeling of certainty" would be the honest answer. Simple and great post George. Great metaphor as well. I suppose that your client doesn’t have answer to the question: “Why do you need those numbers?” I guess, “false feeling of certainty” would be the honest answer.

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