| The technical structure of browse.delicious consists of three levels. The first level gathers the data-set from the web, the second works as a kind of API, which is used by the visualisation system the third level. 
At the first level a Perl script is gathering data through spidering delicious and reading the offered RSS feeds. The collected information gets structured and saved into a MySQL database. Another Perl script is then generating data tables of static data views, which are needed to improve the system speed; if the system would use live data another way needs to be developed. The second level is an PHP build interface to the data. It works like an API, where the third level needs to transmit some information belonging to the requested data and PHP is delivering the result. At the third level Macromedia Flash is used to build the visualisation and user interface. The user is navigating through interacting with the visualisation, each time the user wants to explorer another view a request is sent to the PHP API which returns the result to Flash. |
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