# Proving Ruby's effectiveness

**URL:** <https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757>\
**Category:** Ruby\
**Created:** [July 25, 2006, 11:19am UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757 "2006-07-25T11:19:33Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 25, 2006, 11:19am UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757/1 "2006-07-25T11:19:33Z")

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Our company (2500 employees) has a development conference in a few  
months. I want to present a talk about the effectiveness of Ruby. I’ve  
been asked (at late notice, grrrr) to give concrete evendence about it’s  
applicability to different domains, and the productivity that it  
provides. I’m not particularly interested in raw computing performance:  
I want to show (if it’s true) that projects built in Ruby will be:

Quicker to build,  
Easier to maintain.

If there is a “sweet spot” for which that’s true, then I want to be able  
to talk about that too, and if there are holes, I’d like to talk about  
them.

If you have seen an article that provides evidence of this, I would be  
extremely obliged if you could pass me a link to it. Something peer  
reviewed would be wonderful, but any reasonably believable research  
would be good. I imagine that it would provide measurements from real  
project in terms of the dreaded “man days”; “bugs” and “total cost”,  
etc; and would also give standard code metrics such as cyclometric  
complexity, source code size, etc.

Thanks very much for any help,  
Benjohn

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 25, 2006, 11:28am UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757/2 "2006-07-25T11:28:55Z")

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removed\_email\_address@domain.invalid wrote:

> If there is a “sweet spot” for which that’s true, then I want to be able  
> to talk about that too, and if there are holes, I’d like to talk about  
> them.
> 
> If you have seen an article that provides evidence of this, I would be  
> extremely obliged if you could pass me a link to it. Something peer  
> reviewed would be wonderful, but any reasonably believable research  
> would be good. I imagine that it would provide measurements from real  
> project in terms of the dreaded “man days”; “bugs” and “total cost”,  
> etc; and would also give standard code metrics such as cyclometric  
> complexity, source code size, etc.

This is probably only tangential to what you need, but if it is of  
any value, here is an article from last year:  
[http://www.devsource.com/article2/0,1895,1778695,00.asp](http://www.devsource.com/article2/0,1895,1778695,00.asp)

I suspect that numbers and stats such as your people want will be  
hard to come by. My impression is that 99% of what is out there is  
anecdotal reports and handwaving. (Frankly, outside the Ruby world  
as well as within it.)

Here’s an idea: Take 3-4 small programming problems (the kind you  
might see in an undergrad ACM contest). Assuming you are proficient  
in Ruby, challenge their people to do the same in Java or C++ or  
whatever language. Time everyone to the minute (letting everyone  
finish to his satisfaction). Run all programs against a comprehensive  
test suite (to show how the other guys missed all the edge cases). 😉  
Finally show how the Ruby code is 4 or 5 times as compact.

Just a thought.

Hal

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 25, 2006, 1:30pm UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757/3 "2006-07-25T13:30:30Z")

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Hal:

> This is probably only tangential to what you need, but if it is of  
> any value, here is an article from last year:  
> [http://www.devsource.com/article2/0,1895,1778695,00.asp](http://www.devsource.com/article2/0,1895,1778695,00.asp)

Thanks Hal, I’ve seen that before, and it’s a good piece of evangalism.

> I suspect that numbers and stats such as your people want will be  
> hard to come by. My impression is that 99% of what is out there is  
> anecdotal reports and handwaving. (Frankly, outside the Ruby world  
> as well as within it.)

They are available for other languages though. The problem is that to  
acieve them you need to do a pretty serious study comparing languages,  
and this is expensive. Really, you want to do at least two studies:

A more academic one where you find experienced programmers in your  
choice languages, and ask them to solve problems.

A more practical exercise where you take some real (and comparable)  
projects, and look at how various languages and frameworks compare.

I know I’ve seen a somewhat anecdotal example of the latter in someone’s  
blog. It did have actual numbers in it though, and I got the impression  
is was backed up by the business doing research for its management  
because they cared about the bottom line.

> Here’s an idea: Take 3-4 small programming problems (the kind you  
> might see in an undergrad ACM contest). Assuming you are proficient  
> in Ruby, challenge their people to do the same in Java or C++ or  
> whatever language. Time everyone to the minute (letting everyone  
> finish to his satisfaction). Run all programs against a comprehensive  
> test suite (to show how the other guys missed all the edge cases). 😉  
> Finally show how the Ruby code is 4 or 5 times as compact.

Perhaps one day I’ll have the time and money to do that 🙂

Cheers,  
Benj

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<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 25, 2006, 7:24pm UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757/4 "2006-07-25T19:24:22Z")

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unknown wrote:

> Our company (2500 employees) has a development conference in a few  
> months. I want to present a talk about the effectiveness of Ruby. I’ve  
> been asked (at late notice, grrrr) to give concrete evendence about it’s  
> applicability to different domains, and the productivity that it  
> provides. I’m not particularly interested in raw computing performance:  
> I want to show (if it’s true) that projects built in Ruby will be:
> 
> Quicker to build,  
> Easier to maintain.

Your company is very small, so perhaps the following comments don’t  
matter to you. But I think you can only touch part of the question with  
code bake-offs and the like. Some people are interested in whether Ruby  
is a better choice for relatively large applications that cut across  
multiple domains and are typically written by and for the use of a  
single organization. To assess this is a far more difficult question,  
partly because “better” as used in the preceding sentence requires  
careful definition, and partly because the raw data are not so easy to  
collect.

Whether or not individual modules are easier to write in Ruby is a  
question that we probably have the equipment to answer today. But for  
large applications, I think most people just jerk their knees and assume  
that dynamic languages simply can’t cut the mustard, and I have an  
unproven hunch that nothing could be farther from the truth.

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**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 25, 2006, 5:45pm UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757/5 "2006-07-25T17:45:40Z")

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You didn’t mention whether you would be doing any web development with  
your  
company because if you are there are tons of rails comparisons showing  
the  
productivity gains using ruby and rails over other things.

One well documented study by Justin Gehtland

and here is one from Michael E. of [Gusto.com](http://Gusto.com)

[http://lists.rubyonrails.org/pipermail/rails/2006-March/025290.html](http://lists.rubyonrails.org/pipermail/rails/2006-March/025290.html)

Jeff

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<div class="post-metadata">

**Author:** ![unknown](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/u/4bbf92/32.png) [@unknown](https://www.ruby-forum.com/u/unknown)\
**Post date:** [July 27, 2006, 11:18am UTC](https://www.ruby-forum.com/t/proving-rubys-effectiveness/99757/6 "2006-07-27T11:18:44Z")

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I have recently written a white paper that you may interest you…

[http://www.abletech.co.nz/white-paper-10-reasons-for-ruby-on-rails](http://www.abletech.co.nz/white-paper-10-reasons-for-ruby-on-rails)

Hope it helps

Marcus Baguley
