The children of this element will be passed into the Zend Framework StorageFactory factory. See https://framework.zend.com/manual/2.3/en/modules/zend.cache.storage.adapter.html#overview for more information The children of this element will be passed into the Zend Framework Zend\Db\Adapter\Adapter class. See https://framework.zend.com/manual/2.1/en/modules/zend.db.adapter.html for more information This is the fully qualified or configurationDirectories-related path for a specific configuration file. If you are building a module that will be included via something like Composer do not use this. Get the ConfigurationRepository object from the Builder and add them there.