TRIZ is to overcome the deficiency
of ¡®trial and error¡¯ method. The
working principle of TRIZ as
a systematic solving process
can be presented as the picture
below.

Therefore, TRIZ application
is a thinking process as follows
;

to transform the given
description of the problem
(situation) into the abstract
expression containing the
essence of it (abstraction
of the problem)

to identify the general
solution models by using
general problem models which
result from the abstracted
problem model (Identification
of general problem and solution
models)

to analogize the practical
solution concepts out of
the general solution models
for implementation (analogy
for implementation)

Classical
TRIZ is composed of ARIZ,
problem and solution models
etc. suggested by Altshuller.
Thanks to the thinking ways
of classical TRIZ, modern
TRIZ is being developed
begetting problem and solution
models for various fields.
The methods of abstraction
and analogy are on the track
of a general theory for
solutions to all kinds of
problems.