Abstract: Embodiments of methods and devices for creating and using independent component blocks and application modules are described. One example embodiment involves a method where a first application module and a second application module each register with a uniform resource locator (URL) handler module of a mobile device to associate a protocol name with the respective application module. The modules may then use the protocol names to send messages to other application modules using the protocol names, with the messages being relayed or communicated via a communication routing module. Additional embodiments may involve various applications receiving these messages, which may be structured as URLs. The applications may then parse the messages using URL parsers in the application to identify commands and data within messages.