Dears all ,
In the following pages and the others some useful information may be
found about software development and bugs :
http://en.wikipedia.org/wiki/Category:Programming_bugs
http://en.wikipedia.org/wiki/Category:Software_anomalies
http://en.wikipedia.org/wiki/Category:Computer_errors
http://en.wikipedia.org/wiki/Category:Maturity_models
http://en.wikipedia.org/wiki/Capability_Maturity_Model
http://en.wikipedia.org/wiki/Category:Software_project_management
http://en.wikipedia.org/wiki/Software_Peter_principle
http://en.wikipedia.org/wiki/No_Silver_Bullet
http://en.wikipedia.org/wiki/Software_rot
http://en.wikipedia.org/wiki/Software_brittleness
http://en.wikipedia.org/wiki/Lehman%27s_laws_of_software_evolution
http://en.wikipedia.org/wiki/Software_entropy
http://en.wikipedia.org/wiki/Software_quality
http://en.wikipedia.org/wiki/Computer_bug
Unfortunately , there is a concept < law of conservation of bugs >
mentioned in the page
http://www.site.uottawa.ca:4321/oose/index.html#lawofconservationofbugs
and the another in page
http://en.wikipedia.org/wiki/Software_entropy
.
There is another law about relation between software size and
number of bugs
but I could not find any proper reference about it which may be
( perhaps ) among papers about software metrics and software testing
( http://www.ece.cmu.edu/~koopman/des_s99/sw_testing/index.html ) .
As a result it may be said that it is impossible to produce a software
without bugs when size exceeds a lower limit toward increase .
My opinion is that discussion about Lazarus version numbers is not
converging to a solution .
My suggestions are as follows :
Move Lazarus Components Library into Free Pascal at the side of FCL .
Renumber its version to Free Pascal Version .
Maintain Lazarus as only IDE , and use Free Pascal as compiler .
Remove Free Pascal from inside of Lazarus . It is physically unnecesary
to keep it inside of Lazarus .
Instead of including Free Pascal into Lazarus , mention which Free
Pascal lowest numbered version is able to compile it .
For the Free Pascal there are Language Reference Guide and Programmer´s
Reference Guide .
These are related to documentation of respective Free Pascal version .
There is no ( with respect my knowledge ) a Free Pascal Language Design
Specification .
My idea is that discussion should go on this Specification document .
Free Pascal versions
will be implementation of this specification as much as possible .
In Lazarus wiki there are very good pages about which parts are
implemented and which parts require further work ( To Do List ) .
These works may be converted to a Lazarus Design Specicifation document
and development may be pursued with respect to that document .
Assume that specifications are numbered as Version 1 .
When Lazarus fully implements that specification its version will be at
least the version of the specification . Without such specification
version numbering will not be able to show any measurable entity .
When the following sites are studied one point may be noticed :
http://delphi.icm.edu.pl/
http://www.torry.net/
Nearly all of the presented sources contain information about which
Delphi versions may compile the sources ( means that there is a very
strong dependency of source syntax and sometimes semantics to Delphi
version ) .
I think , later on , Lazarus and Free Pascal compilable sources will
start to mention version dependency explicitly .
Now , it seems that most requested feature is to enlarge
the Free Pascal and Lazarus but maintain exact backward compatibility .
I consider such a possibility is an impossibility . My policy is to use
a smallest possible subset of a language which this subset may not be
changed over time or changes are so small that does not break my
programs severely .
Thank you very much .
Mehmet Erol Sanliturk
--
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