! General
The class [Section|https://isci.informatik.uni-wuerzburg.de/javadoc/KnowWE/de/knowwe/core/kdom/parsing/Section.html] is used to represent the source text of all articles at level of granularity necessary to fullfil all tasks required in knowledge engineering.
It plays an important role in any kind of programming on or for KnowWE. For a description of the public interface refer to the [javadoc|https://isci.informatik.uni-wuerzburg.de/javadoc/KnowWE/de/knowwe/core/kdom/parsing/Section.html].

__Important:__ Section objects have to be used as read-only objects. Do not try to modify these objects. If you need to change source content, please refer to the [corresponding howto|How-To Work with Sections]. To maintain consistency, Section object may only be created or modified by the internal source processing mechanism of KnowWE.

! Section basics

The most important structural characteristics of the tree-based content representation as sections can be summarized as follows:
* Every article has a root section. This section contains the entire source text of the article.
* For every section, which is not a leaf, the following holds: A ordered string concatenation of all child sections exactly matches the text content of the node
* Each section is provided with a [Type] which describes and represents the role of this piece content.

! Further readings 
* [Sections]