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TRIZ Ideality and Ohm’s Law

Back after attending a great and wonderful TRIZ India Summit at Bangalore. Special thanks to Navneet Bhushan of Crafitti for referring me to this inspiring summit.

One of the central concept of TRIZ called Ideality was discussed. There was a session by Ido Lapidot from Intel. Naveent has written about this here .

During his great session on his experience of TRIZ implementation he mentioned about law of Ideality :

Ideality =  (Useful function) / (Harm + resources)

With my very limited understanding of TRIZ, I was curious and keen to understand the Ideality definition by comparing with Ohm’s Law.

Ohm’s law can be stated as the current in a resistive circuit is directly proportional to its applied voltage and inversely proportional to its resistance.

In equation I = V (Useful function) / R (Harm)

Usable Product = Value Added Inputs / Wastes As per Lean

Any usable software or hard ware =

(Clear Requirements, inputs, understanding)


Waiting time for approval, Review, rework, Bugs and defects injected

To achieve the maximum current (I) that is the Value proposition for the customer, the important task of Project head is to remove the resistance (R), the wastes in the words of Lean.

This is my first understanding on Ideality and applied in limited context. After a while with more exposure to TRIZ, I may be able to come out with improved mappings later. Let us use TRIZ and move closer to Ideality.


6 Responses

  1. […] Read the original: TRIZ Ideality and Ohm's Law « 3point4 – Attuning to Agile,Lean and … […]

  2. Fantastic comparison.

  3. […] This post was mentioned on Twitter by navneetbhushan, navneetbhushan. navneetbhushan said: TRIZ India Summit – commentary by Krishna Sivaramakrishnan http://lnkd.in/sSqGft […]

  4. I like the analogy, but would caution about carrying it too far. “Resistance” = harm only if the goal is to carry maximum current in the circuit. If the goal is to use the circuit to heat something, then resistance is the parameter to be adjusted, but not to be eliminated. This helps as a teaching case to caution people that ideality is relative, because both benefits and harm are relative to the customer.

    • Ellen, Thanks a lot for your valuable suggestion. Agree with you 100% that Resistance / Ideality is relative and we cant fix any general threshold for the denominator – harm / resistance

      Thanks again for your time and great insights.

  5. […] Ideality =  (Useful function) / (Harm(resistance) + resources(systemized)) […]

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