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List: extremeprogramming
Subject: Re: [XP] Reuse across projects
From: "J. B. Rainsberger" <jbrains762 () gmail ! com>
Date: 2009-04-29 19:38:27
Message-ID: E09C6CF0-C93F-4469-8A99-1E89570AAF08 () gmail ! com
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On 2009-04-09, at 04:03 , Brandon Olivares wrote:
> As far as I understand it, XP discourages assuming something is
> going to be
> needed until you actually get to that point where it is needed. Also
> according to my understanding, that includes abstracting code to be
> more
> general for reuse, until there is duplication, and then it can be
> refactored.
>
> So, what about reuse across projects? That'd be duplication, but not
> within
> the same project.
>
> I've put about 30 hours into a part of this project I'm working on
> that I
> really think could be reused, which is why I'm curious about this.
> Surely
> reuse across projects can save a lot of time.
>
> So how do you handle this, when you're working on a new project, and
> there's
> a part that is very similar to something in another project? How do
> you know
> when to abstract it for better reuse?
>
I ask organizations to consider an "internal open source" model for
promoting reusable code across projects. When two teams notice they
share some code in common, they extract a library or framework,
publish it to the intranet, then promote it to the rest of the
organization. Sometimes those projects take on a life of their own;
sometimes better projects eclipse them; sometimes weird stuff happens.
I strongly encourage those organizations to make cross-project
collaboration happen, which can be as simple as a Lunch and Learn once
per month and as elaborate as an internal Open Space-based Tech Fair.
Take care.
----
J. B. (Joe) Rainsberger :: http://www.jbrains.ca
Your guide to software craftsmanship
JUnit Recipes: Practical Methods for Programmer Testing
2005 Gordon Pask Award for contributions to Agile Software Practice
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<p>On 2009-04-09, at 04:03 , Brandon Olivares wrote:<br>
<br>
> As far as I understand it, XP discourages assuming something is <br>
> going to be<br>
> needed until you actually get to that point where it is needed. Also<br>
> according to my understanding, that includes abstracting code to be <br>
> more<br>
> general for reuse, until there is duplication, and then it can be<br>
> refactored.<br>
><br>
> So, what about reuse across projects? That'd be duplication, but not <br>
> within<br>
> the same project.<br>
><br>
> I've put about 30 hours into a part of this project I'm working on <br>
> that I<br>
> really think could be reused, which is why I'm curious about this. <br>
> Surely<br>
> reuse across projects can save a lot of time.<br>
><br>
> So how do you handle this, when you're working on a new project, and <br>
> there's<br>
> a part that is very similar to something in another project? How do <br>
> you know<br>
> when to abstract it for better reuse?<br>
><br>
I ask organizations to consider an "internal open source" model for <br>
promoting reusable code across projects. When two teams notice they <br>
share some code in common, they extract a library or framework, <br>
publish it to the intranet, then promote it to the rest of the <br>
organization. Sometimes those projects take on a life of their own; <br>
sometimes better projects eclipse them; sometimes weird stuff happens. <br>
I strongly encourage those organizations to make cross-project <br>
collaboration happen, which can be as simple as a Lunch and Learn once <br>
per month and as elaborate as an internal Open Space-based Tech Fair.<br>
<br>
Take care.<br>
----<br>
J. B. (Joe) Rainsberger :: <a \
href="http://www.jbrains.ca">http://www.jbrains.<wbr>ca</a><br> Your guide to \
software craftsmanship<br> JUnit Recipes: Practical Methods for Programmer \
Testing<br> 2005 Gordon Pask Award for contributions to Agile Software Practice<br>
<br>
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