NSL

Navigation semantic link can be understood with the help of tree diagram .

                                               

The working of navigation semantic link can be done in 4 steps as shown in below figure :

•  HTML source
•  HTML link extraction
•  HTML link availability and
•  HTML link proximity

                                           

STEP 1 : HTML SOURCE 

 We can obtain source code of any web page by utilizing two processes :


1.Static analysis of links:

In static analysis, source codes of the programming modules are analyzed to extract the inter-module relations.  We can apply application logic of navigation either on

1.     Document content (specified inside blocks of augmented HTML files) or

2.     Application logic (specifies logic in script languages like PERL & outputs in HTML)

    


2.Dynamic Analysis of Hyperlinks:

    Dynamic analysis on the web application can extract the link information by driving  (loading) program   modules to its interpreting engine. Supporting tools may be designed to analyze the following information:

1.     Link information of the programming module after server interpretation.

                               Fig  . Dynamic analysis for server interpreted scripts

2.     Link information of the programming module after browser interprets the client-side scripts.

Example : Driving JavaScript to browser’s interpreter , two /or more links obtained .

      

Fig .Dynamic analysis on browser interpreted scripts

3.     Link information generated during user interaction on the web page .

          

       

                                    Fig  . Analysis on hyperlinks generated through user interactions

  For analyzing the coding part , click implementation