For TRIZ, systems evolve towards ideality. This progression is made by solving problems.
TRIZ Matrix can help solving problems if we translate them in Contradictions ; E.g. if an object must be longer without becoming heavier, this technical challenge can be translated in this Contradictions:
Entering these values in the tool, one can browse the TRIZ Matrix to discover innovation Principles that can solve the said problem.
On TRIZCoach, to make things easier, you can express your technical challenge in natural language.
here, pqai like results are shown