Integrating web site services into application through user interface

The issue of integrating applications which are only accessible through visual user interface is not thoroughly researched. Integration of web applications running remotely and controlled by separate organizations becomes even more complicated, as their user interface can display di ff erently in di ff erent browsers or change without prior notification as a result of application maintenance. While possible, it is generally not common for web sites to provide web services through standard mechanisms like SOAP, RPC, or REST, due to administrative, and especially security reasons. Programmatic use of the capabilities of numerous public sites which only provide web user interface to their services is very appealing, as they may significantly extend the functionality of other applications. This paper presents the research on employing existing software of various purpose to integrating web sites using their user interface. With selected method, some capabilities of Moodle are expanded by integrating remote Moodle server with local application, to create team-work support tools.