please tell me about fish model which is used in sdlc model
,and also tell me about the founder of fish model and
diagram of fish model and other things in details

Answer Posted / dhananjay

Fish model is also called as cause effect diagram or Fish
bone diagram or Eshikawa diagram.

This method is mostly used to find out the possible causes
of any effect or output.
E.g. suppose your application is not giving proper output
while adding new module to system.Then there can be
possible casese like mismatch in variables, there may be
something wrong in design or there may be something wrong
in SRS and so on.....

To draw diagram (1) Draw a straight horizontal line
(2) Then draw some cross lines like body structure of fish
& keep major causes at that lines.
(3)Draw another cross lines to major cause line and write
there minor causes.

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