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	<updated>2026-04-05T21:08:54Z</updated>
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		<id>http://mw.hh.se/wg211/index.php?title=WG211/M12Liebig&amp;diff=778&amp;oldid=prev</id>
		<title>Ups: Created page with &quot;&#039;&#039;Analysis and Transformation of Product Lines&#039;&#039; by Jörg Liebig  Today&#039;s software systems have grown to a level of complexity that make them hard to understand and maintain for ...&quot;</title>
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		<updated>2013-03-28T16:00:57Z</updated>

		<summary type="html">&lt;p&gt;Created page with &amp;quot;&amp;#039;&amp;#039;Analysis and Transformation of Product Lines&amp;#039;&amp;#039; by Jörg Liebig  Today&amp;#039;s software systems have grown to a level of complexity that make them hard to understand and maintain for ...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;&amp;#039;&amp;#039;Analysis and Transformation of Product Lines&amp;#039;&amp;#039; by Jörg Liebig&lt;br /&gt;
&lt;br /&gt;
Today&amp;#039;s software systems have grown to a level of complexity that make&lt;br /&gt;
them hard to understand and maintain for developers. It is not only&lt;br /&gt;
their sheer size, but also their variability that contributes to their&lt;br /&gt;
high complexity. Nowadays, software systems support a variety of&lt;br /&gt;
hardware platforms and provide different configuration options to&lt;br /&gt;
enable users to adopt a system in application scenarios. To realize&lt;br /&gt;
the required variability, developers usually make use of product-line&lt;br /&gt;
technologies such as feature-oriented programming.&lt;br /&gt;
&lt;br /&gt;
Among different implementation techniques and tools that have been&lt;br /&gt;
proposed by practitioners and researchers, the C preprocessor (cpp) is&lt;br /&gt;
one of the tools most frequently used to implement variable software.&lt;br /&gt;
It relies on a set of directives (a.k.a. macros) that developers use&lt;br /&gt;
to express explicit source-to-source transformations. Unfortunately,&lt;br /&gt;
cpp is not obliged to respect the syntactic structure of the underlying&lt;br /&gt;
language (e.g., C) and, thus, users do not necessarily respect it either.&lt;br /&gt;
However, existing analysis and transformation techniques expect&lt;br /&gt;
structured input. thus, the use of cpp in the development of product&lt;br /&gt;
lines imposes many challenges.&lt;br /&gt;
&lt;br /&gt;
In this presentation, we present our findings regarding three research&lt;br /&gt;
questions on the analysis and transformation of cpp-based product lines.&lt;/div&gt;</summary>
		<author><name>Ups</name></author>
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