PYTHON · NUMPY

Who gets to define the method

Show that a measurement method is adopted, not imposed, and locate the morphologies whose method is still unwritten.

01Challenge

A voluntary standards body published a method for measuring robot energy this year. Work out which machines it makes comparable, who is obliged to follow it, and what that leaves open.

Predict firstISO published the first international method for measuring robot energy consumption in 2026. Who is required to follow it?

02Model

Until this year there was no agreed way to say how much electricity a robot uses, which is why datasheet figures were never comparable between vendors. ISO/TS 25213 offers one. Read it for two things. First the scope: six-axis articulated industrial robots, with service, medical, SCARA, autonomous mobile and delta robots excluded by name, and humanoids not named at all. Second, and more important: ISO is a voluntary membership body. Nothing in that document is enforceable, no regulator stands behind it, and no manufacturer is obliged to run it. A method spreads because people find it worth running, not because a committee blessed it. So the useful question is not what the standard permits us to do. It is which machines still have no method, and what an open one would have to state to be worth adopting.

03Guided practice

Work through the coverage table and map each body from lesson 1 onto covered, excluded, or unnamed. Then write the fields an open method would have to carry to be worth running — and check them against what you already built in lessons 2, 3 and 5.

04Feedback

PASS WHEN You read the scope, then read who it binds — which is nobody.

If your run fails, check:

The one morphology with a published method is the one where compute is the smallest share of the budget.
The AMR, where compute dominates, is excluded by name. Humanoids are not named either way.
A voluntary specification is adopted when it is worth running. An open method that states its plane, its noise floor against a known load, its null control and its residual is more adoptable than a paywalled one — and you have already built all four.

05Retrieve & space

Which morphologies does ISO/TS 25213 exclude by name, and which does it not mention at all?
Who is obliged to follow an ISO Technical Specification?
Name the four things an open measurement method must state to be reproducible.

06Mastery & project

Read a standard for its scope and its enforceability separately, and specify a method of your own that another lab could run without buying anything.

Pick a robot platform you work with. Determine whether any published method would make its energy figure comparable to another vendor's. If none does, write the method you would publish, with all four required fields filled in.

GO FURTHER · THE LIVE PLAYGROUND

Open the instrument ↗ · Select the industrial arm and read why it returns no answer — then ask who could supply one.

← Verify the instrument The difference between twins →

PYTHON · NUMPY

Who gets to define the method

Given the scope, decide which bodies have a published method — then specify what an open one must state.

You read

the arrays and values already in scope

You change

the code you write in each cell

Fixed

the dataset and the checks that grade you