We can define any number of vocabularies (category types) and terms (categories)
e.g.
Controversial Content: (vocabulary)
– violence (term)
– adult content (term)

Genre (Vocabulary)
– Comedy (term)
– Romance (term)

We can config which content types are compatible with which vocabulary and which nodes are belong to which terms.

Some important drupal modules: Views, CCK, Path auto, FCK Editor, User points, Flags, Panels, Image cache

Views can be used to generate lists of content in various formats same as report generator works.

We can create roles (moderators, proof readers, content admins etc) and we can permit each task to each role. A user can have 1 or many roles.

Drupal themes are basically used to change the look and feel of the site.

Block is a section in a page (recent posts, news, vote to something, login box, navigation), which is movable to regions (header, footer, content top etc) in a page. Blocks can be configured to show/hide only to certain type of user roles, url patterns or some other advanced criteria. (Content area is not a block)

We can install CCK (Content construction kit) module and create content types. We can define the structure of each content type too.

A node is a unit of content. It has a type. Page, News or as Testimonial.

New module is developed by implementing hooks.  Hooks are defined in the API. At certain events, drupal hooks into our modules.

E.g. When a page is request processing start by initializing  -> hook_init
If the module name is mymodulename we can implement hook like this.

function mymodulename_init(){
}

It is the the settings.php file. The script will automatically populates database tables and configures the correct settings in the settings.php file.
It also explains how to do a “multi site” installation.

Frameworks – Zend Framework, cakephp

CMS’s – Drupal, joomla, wordpress

(wordpress is acutally a blog / CMS).