Agile Development
Agile software development is a group of software development methodologies based on iterative and incremental development, where requirements and solutions evolve through collaboration between self-organizing, cross-functional teams.
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Yii - a PHP Development Framework
Yii is a high-performance component-based PHP framework best for developing large-scale Web applications.
Yii comes with a full stack of features, including MVC, DAO/ActiveRecord, I18N/L10N, caching, jQuery-based AJAX support, authentication and role-based access control, scaffolding, input validation, widgets, events, theming, Web services, and so on.
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Drupal - Content Management System
Drupal is a free and open source content management system (CMS) written in PHP and distributed under the GNU General Public License.
It is used as a back-end system for at least 1% of all websites worldwide ranging from personal blogs to larger corporate and political sites including whitehouse.gov and data.gov.uk. It is also used for knowledge management and business collaboration.
Click here for more info on Drupal.

