Pursuing Domain-Driven Design practices in PHP

DDD is a development technique which prescribes practices oriented to bridging the gap between software and domain, such as a database-agnostic object model which cares little about technical distractions and more about expressiveness and correctness. We'll see how to reconcile these requirements with the need to integrate
off-the-shelf components like Doctrine and Zend Framework, which are powerful technologies but often limiting the freedom of modelling the problem.