Before revision: subject based hierarchal indexing on web accepts three fields of data columns id Title category body of article 1 mouse input mouse is an input device 2 input device computer conmputer has input out put and storage, processing devices 3 computer electronics computer is an electronic device example of an electronic subject hierarchical indexing is used in this web URLdownload link for this application (php mysql is here URL Automatic vs. manual subject analysis Automatic indexing follows set processes of analyzing frequencies of word patterns and comparing results to other documents in order to assign to subject categories.
After revision:   Automatic vs. manual subject analysis Automatic indexing follows set processes of analyzing frequencies of word patterns and comparing results to other documents in order to assign to subject categories.