Patrick Smacchia [MVP C#]

Sponsors

The Lounge

Advertisement

Where do developers care for Software Quality?

Normal 0 21 false false false FR X-NONE X-NONE

The other day I had a look at NDepend website visits by countries statistics (produced by Google Analytics). Despite some important bias the result were pretty interesting.

 

NDepend is a tool to work effectively on quality and maintainability of .NET software. Being interest in Software Quality is certainly correlated with a high education and experience in other software development domains like advanced OOP skills, automatic testing, Deisgn by Contract, continuous integration...

 

The fact that a developer visits our website reveals somehow its interest for Software Quality. The number of visits from a country is then more or less correlated to the cultural interest for Software Quality. Obviously the number of visits is strongly correlated with the number of developers in the country. While there are no statistics about the number of developers per country, there are some statistics about the country population. By dividing the number of visits by the number of habitants, we then obtain an indicator the cultural interest for Software Quality. Notice that I don't claim that this indicator is resulting from a scientific approach (it is not the case). I just found the result interesting enough to be shared publicly. Just take these numbers as-is.

 

Here are the results for the top 50 countries:

 

Visit Rank

Country

% of Visits

Population in Million

% of Visits / Population

1.

United States

26,36

306

8,61

2.

United Kingdom

7,65

62

12,34

3.

India

6,55

1165

0,56

4.

France

5,99

65

9,22

5.

Germany

5,92

82

7,22

6.

Canada

3,93

33

11,91

7.

Australia

2,96

22

13,45

8.

Italy

2,87

60

4,78

9.

Netherlands

2,42

16,5

14,67

10.

Russia

2,01

142

1,42

11.

Sweden

1,9

9,3

20,43

12.

Poland

1,92

38,1

5,04

13.

Brazil

1,76

191,4

0,92

14.

Spain

1,64

45,8

3,58

15.

Belgium

1,58

10,7

14,77

16.

Norway

1,57

4,8

32,71

17.

Denmark

1,52

5,5

27,64

18.

South Africa

1,36

48,7

2,79

19.

Switzerland

1,27

7,7

16,49

20.

Israel

1,17

7,4

15,81

21.

Japan

1,15

127,5

0,90

22.

Austria

1,06

8,3

12,77

23.

China

1

1331

0,08

24.

Ukraine

0,96

46,1

2,08

25.

Romania

0,9

21,4

4,21

26.

Ireland

0,89

4,5

19,78

27.

New Zealand

0,8

4,3

18,60

28.

Argentina

0,73

40,1

1,82

29.

Portugal

0,65

10,6

6,13

30.

Hungary

0,63

10

6,30

31.

Singapore

0,59

4,8

12,29

32.

Turkey

0,47

71,5

0,66

33.

Finland

0,43

5,3

8,11

34.

Morocco

0,42

31,5

1,33

35.

Sri Lanka

0,34

20,2

1,68

36.

Mexico

0,34

109,6

0,31

37.

Greece

0,34

11,2

3,04

38.

Philippines

0,32

92,2

0,35

39.

Czech Republic

0,32

10,4

3,08

40.

South Korea

0,31

48,3

0,64

41.

Vietnam

0,27

88

0,31

42.

Hong Kong

0,25

7

3,57

43.

Taiwan

0,25

23

1,09

44.

Belarus

0,23

9,6

2,40

45.

Lithuania

0,21

3,3

6,36

46.

Egypt

0,21

77

0,27

47.

Tunisia

0,18

10,3

1,75

48.

Slovenia

0,17

2

8,50

49.

Thailand

0,17

63,3

0,27

50.

Serbia

0,16

9,8

1,63

 

 

Bias

There are 2 important bias when considering % of Visits of NDepend website/ Population as a metric for country interest in Software Quality and Maintenance:

 

  • Level of Country development: India (0.56) is the main representative of this bias. While India is a country with a traditional focus for Software Development, a large portion of the population is still unfortunately under-developed. The same way, Russia (1.42), South-Africa (2.79) and South-Korea (0.64) are also largely impacted by this bias.
  • Lack of Localization: For now all our documentation and tooling is available in English only. We hope that this situation will evolve in the future but so far, this constitutes a barrier for countries traditionally attached to their language. With a high focus for quality, a high traditional national cohesion and a very low score, Japan (0.90) is certainly the main representative of this bias. (Btw, Jeff Atwood had recently some interesting remarks about English as the language for developers).

 

Remarks

  • The tremendous portion of visits (26.36%) from USA is not a surprise. The home country of Microsoft, Google, IBM, Oracle, Apple, Sun... represents the main market for every ISV on earth. However I was a bit surprised by the relatively low score of USA (8.61). I don’t really have an explanation for that, do you? Btw, here is the amount of visits by states:

 

 

  • Scandinavia countries are often quoted as models for education, social development, environments, human rights… The very large score for Norway (32.71), Sweden (20.43 )and Denmark (27.64) reveals also a high focus for Software Quality. Btw, did you noticed that both Anders Helsberg (creator of C# and Turbo Pascal) and Bjarne Stroustrup (creator of C++) are Danish?
  • With 62M habitants, UK as a large country with a high score (12.34) seems to be an exception. Canada (11.91) and Australia (13.45) are smaller but also comes with a high score. These 3 countries are English spoken and here, the fact that our software is only localized in English might represent a positive bias. The opposite way, the same reason plays as a negative bias for non-English-spoken large developed countries like France (9.22), Germany (7.22), Italy (4.78), Spain (3.58)....
  • It seems that smaller countries, like Scandinave countries but also Switzerland (16.49), Israel (15.81), Ireland (19.78), Belgium (14.77), New Zealand (18.60), Netherlands (14.67), Singapore (12.29)… gets higher score. Each country may have particular reasons (banking in Switzerland, higher IT budgets in Israel because of defense, lower taxes + English spoken in Ireland…).
  • There is not a strong correlation between the presented score and the amount of sales per countries. For most software the licensing price is the same world-wide. Depending on the currency strength of each country, a license is thus more or less affordable.

I am a big fan of travel and foreign-culture discovery. Quoting all these countries makes me want to bag-back on the road again. Until then, let’s guess where the hell is Matt? Smile

 


Posted Sun, Jul 5 2009 12:30 PM by Patrick Smacchia

[Advertisement]

Comments

Jason Haley wrote Interesting Finds: July 5, 2009
on Sun, Jul 5 2009 8:06 AM

Interesting Finds: July 5, 2009

some_guy wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 10:21 AM

Maybe a more useful list is this:

en.wikipedia.org/.../List_of_countries_by_number_of_Internet_users

or the one where they're sorted by number of computers

Interesting finds nonetheless

Bob wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 11:36 AM

So, # of visits to the NDepend website is = to the interest in software quality for a given country? Let's just say if this was a research paper, the professor would most likely find it to be "incomplete", to put it nicely.

I would sincerely love to see an article showing a case study where NDepend was used to improve the code quality of a complex app. Still waiting.

Slim Amamou wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 12:06 PM

I think the main mistake you made is ignoring .NET penetration by country. If these stats would make any sense they should be compared to the .NET usage in the corresponding country.

Kaa wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 12:20 PM

Haha, I've been watching these mile long "analysises" using NDepend pop up on the Codebetter blog and always thought they were a bit simplified and a bit too close to numerology for my taste.

To see this "map" of interest in software quality just proves that this single minded reliance on statistics makes for misleading and self absorbed conclusions.

Patrick Smacchia wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 2:01 PM

What I expose here are some raw numbers that we could have been kept private as most companies do. By no mean I deny the numerous underlying bias, including the 2 major quoted ones. The fact is that I found the numbers interesting enough to be publicly published, interesting enough to emit some quick remarks.

Patrick Smacchia wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 2:02 PM

>single minded reliance on statistics makes for misleading and self absorbed conclusions.

Kaa, software development is engineering and engineering is numbers. I especially wrote last week my opinion about the difficulties to measure software complexity. Do you think that there is no need to measure complexity?

codebetter.com/.../fighting-fabricated-complexity.aspx

Patrick Smacchia wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 2:04 PM

>I would sincerely love to see an article showing a case study where NDepend was used to improve the code quality of a complex app.

Bob, read the following posts. Then, let me know how without tooling like NDepend, you would gather all these hidden code base data revealed in the posts? By crafting the code manually? by interviewing concerned developers?

Also, how would you efficiently improve quality and maintainability without such information gathered from the code itself?

http://codebetter.com/blogs/patricksmacchia/archive/2008/09/23/getting-rid-of-spaghetti-code-in-the-real-world.aspx

http://codebetter.com/blogs/patricksmacchia/archive/2009/01/04/using-ndepend-on-large-project-a-success-story.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2009/05/21/a-quick-analyze-of-the-net-fx-v4-0-beta1.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2009/04/26/the-big-picture-of-the-sharpdevelop-code-base.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2009/04/23/ndepend-and-the-quality-of-the-cruise-control-net-code-base.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2009/01/11/lessons-learned-from-the-nunit-code-base.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2009/01/19/mono-vs-net-framework-public-api-compatibility.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2008/10/01/comparing-silverlight-and-the-net-framework.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2008/08/26/nhibernate-2-0-changes-overview.aspx


http://codebetter.com/blogs/patricksmacchia/archive/2008/08/13/net-3-5-sp1-changes-overview.aspx

 

Also, you can have a look at what other bloggers have to say about NDepend. Many of them expose real-world use cases:

 

http://www.ndepend.com/Testimonials.aspx

 

 

 

Chris Brandsma wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 3:18 PM

It would be interesting if you could include data from other groups in similar spaces.  Like data from NCover, TypeMock, RhinoMocks, NUnit, etc.   After all, NDepend is only one tool to help with code quality.  Heck, I would add in CodeBetter usage analytics data.

I also think adding # of developers per country would also be an interesting data point.

Patrick Smacchia wrote re: Where do developers care for Software Quality?
on Sun, Jul 5 2009 3:41 PM

Chris, I would be glad to know these data for others .NET tools, just ask their respective guys.

Also, to get a precise answer to # of .NET developers per country,maybe only Microsoft has a good answer.

DotNetShoutout wrote Where do developers care for Software Quality? - Patrick Smacchia - CodeBetter.Com
on Mon, Jul 6 2009 6:43 AM

Thank you for submitting this cool story - Trackback from DotNetShoutout

Arnis L. wrote re: Where do developers care for Software Quality?
on Mon, Jul 6 2009 8:25 AM

My country is not in the list. ^^

Dmitri Nesteruk wrote re: Where do developers care for Software Quality?
on Mon, Jul 6 2009 9:17 AM

It's somewhat dissappointing to see Russia so low on the list. Whether the survey is scientific or not, my guess is it's a reflection of code shops' purchasing power more than anything else. In wealthier countries, it's easy to fund things like NDepend, ReSharper or Typemock, whereas if you're at a place like India or Russia, the cost makes a big difference - especially when compared to the wages payed to employees.

Sanjeev Agarwal wrote Daily tech links for .net and related technologies - July 5-8, 2009
on Tue, Jul 7 2009 5:51 AM

Daily tech links for .net and related technologies - July 5-8, 2009 Web Development The MVC in JavaScriptMVC

Ross Hawkins wrote Where do developers care about software quality?
on Tue, Jul 7 2009 8:24 PM

Where do developers care about software quality?

Joey S. wrote re: Where do developers care for Software Quality?
on Wed, Jul 8 2009 8:18 AM

Hi Patrick,

Just wanted to let you know the reason Israel is high on the chart is not because of the high IT budgets due to defense rather because of the very active high-tech industry that employs vast amounts of talented brain-power.

What adds to that is the fact that Microsoft technologies are being used by many developers.

Joey

Patrick Smacchia wrote re: Where do developers care for Software Quality?
on Wed, Jul 8 2009 5:56 PM

Thanks for this insightful comment Joey, why is Microsoft  better implanted in Israel in your opinion?

runefs wrote re: Where do developers care for Software Quality?
on Fri, Jul 10 2009 9:05 AM

Im not surprised to see scandinavia countries so high on the list. Most business in scandinavia have very few levels of management often no more than three levels (CEO-Department manager-"production") so in the case of software development there might be one manager in between the Developer/architect and the CEO placing a high amount of respocibility on the Devs.

When the lack of quality "suddenly" becomes your personal problem and not you managers managers problem most people will focus more on that quality

Liam McLennan wrote re: Where do developers care for Software Quality?
on Mon, Jul 13 2009 7:58 PM

I agree with Bob. To correlate visits to your products advertisement with developer interest in software quality is simply hubris.

Thank you for publishing the data, it is interesting. The analysis is what I disagree with.

Add a Comment

(required)  
(optional)
(required)  
Remember Me?