The short answer
Get two things right: what is tested, and who is paid. Test real work that is watched, recorded and judged by people who do the job, then keep the tester apart from the trainer, pay examiners the same for a pass or a fail, and let anyone check the result.
Start with what gets tested. Good proof of skill has five parts: real work, done under real conditions, watched and recorded, judged by people who do the job, and checkable by anyone afterward. That's how a pilot's check ride works. Multiple choice can't match it.
Then check the incentives. A credential has the same weakness as any other product: the seller wants it to look good. So build the system so that the honest result is also the paid-for result. Don't let the one who teaches also test. Pay the examiner a flat fee. Record everything and allow appeals to a different examiner. Put results in a public registry.
The third piece is staying current. A diploma is frozen on the day it was printed. A bank balance tells you what you have today. A credential should work like the balance. When examiners are working in the field, they bring today's standard into the room. Every exam adds evidence about what the field needs. The main federal law behind college money was last fully renewed in 2008, and accreditors do a deep review about once a decade. A credential that updates each time it runs doesn't wait for a committee.
Last, bring human judgment back and hold it accountable. A skilled person watching you work can see what no bubble sheet can. For most of history, trusting a person's judgment meant trusting it blindly. Now every exam can be recorded for almost nothing, and every examiner's calls can be compared with what happened afterward.
Score any credential against two lists. First, the five parts: is the work real, in real conditions, watched and recorded, judged by people in the field, and checkable? Second, the money: who sells the training, how is the examiner paid, who hears appeals, and can anyone look up the result?
A design is a promise, and a track record is proof. At Maxwell Rich Certification, we're putting these rules to work. We're new and we have no track record yet, so judge us by our design. Even a well-built test can be too narrow, and any examiner can have a bad day, which is why recording and appeals sit in the design.
Good proof of skill is real work, done under real conditions, watched and recorded, judged by people who do the job, and checkable by anyone afterward.
Separate the one who teaches from the one who tests, pay the examiner the same whether you pass or fail, record everything and allow appeals, let anyone check the result, and make it update every time it runs.
A system for learning and proof should update every time it runs, the way a bank balance does, instead of when a committee or a Congress gets around to it.
Bring human judgment back into teaching, hiring, and testing, and hold it accountable with recordings, appeals, public records, and ratings tied to real results.