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Re: Measuring the complexity of XSLT stylesheets

2005-04-17 13:36:20
http://www.sei.cmu.edu/str/descriptions/cyclomatic_body.html


Cyclomatic Complexity (McCabe)
Measures the number of linearly-independent paths through a program module
 
Halstead Complexity Measures
Algorithmic complexity, measured by counting operators and operands

 
Henry and Kafura metrics
Coupling between modules (parameters, global variables, calls)

 
Bowles metrics
Module and system complexity; coupling via parameters and global variables

 
Troy and Zweben metrics
Modularity or coupling; complexity of structure (maximum depth of
structure chart); calls-to and called-by

 
Ligier metrics
Modularity of the structure chart
 


Cheers,
Dimitre Novatchev

On 4/18/05, Lars Marius Garshol <larsga(_at_)garshol(_dot_)priv(_dot_)no> wrote:

I'm writing a paper where I'm evaluating different XML vocabularies
for expressing the same information, and one of my evaluation criteria
is how easily the resulting XML can be processed with XSLT. At the
moment the paper contains only prose with a subjective appraisal of
the various approaches. This is fine, as far as it goes, but it would
be nice to have something more objective to back it up with. Are there
any established criteria for evaluating the complexity of XSLT
stylesheets?

There are some obvious criteria I could think of, like:

- size of stylesheet in bytes, lines, and XML elements+attributes,

- number of elements from the XSLT namespace, and

- combined length (in characters) of XPath expressions.

I think these criteria would work, but I'm not convinced that they
really capture complexity directly. Can anyone suggest better
alternatives?

--
Lars Marius Garshol, Ontopian         <URL: http://www.ontopia.net >
GSM: +47 98 21 55 50                  <URL: http://www.garshol.priv.no >

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