A registration team may start with a list of password rules, then discover that the real goal is to keep member accounts secure. A password-strength algorithm is one possible way to assess candidate passwords against that goal. It shifts the discussion from enforcing a particular rule set to deciding which passwords are strong enough to accept. section 6.2
Use the sample-password table to discuss both strength ratings and the acceptance threshold. It rates “password1” weak and unacceptable, “dJeZDip1” medium and acceptable, and “SeagullHedgehog” strong and acceptable. section 6.2
Agree on examples before committing to an implementation. A team can try existing libraries, gather stakeholder feedback, and keep the integration replaceable if another library or a custom algorithm proves more suitable. The acceptance threshold is itself a decision to make explicit: one set of examples accepts medium-strength passwords, while a later UI criterion calls for strong passwords only. section 6.2 section 10.2.3
Test the two responsibilities at different levels. An automated web test can check that the page gives users strength feedback. Application code–level tests are better suited to checking which passwords the algorithm accepts; repeatedly submitting candidates through the interface would be wasteful. section 10.2.3
