BrainTrust Investment Lab › SS4 — Data Cleansing System (Quality Screens) › prices
BrainTrust Investment Lab

prices — the SS4 walk

The daily tape — 13.6 million closing prices and the bars behind them. The last close is what everything else revolves around, so this lane is measured before anything downstream is allowed to lean on it.

One source per sheet; every step CERTIFIED or OWED by BrainTrust Staff, matched against the book’s page.

steps certified
11 of 11
certifications signed
12 of 12 cells — steps 4–8 are certified per table
step inventory · the screen inventory, DECLARED -- typed against p.457's closed set ✓ CERTIFIED · p.457
step column_screens · column screens, MEASURED this run -- against a declared rule, per column ✓ CERTIFIED · p.457
step structure_screens · structure screens, MEASURED -- beside a denominator, on a key that can fail ✓ CERTIFIED · p.457
step business_rules · business-rule screens, DECLARED -- with a threshold and its own basis ✓ CERTIFIED · p.458
step response · the exception action, RULED -- TAG by default, SUSPENSE refused at the act ✓ CERTIFIED · p.458
step balance · the balance between fixing and preserving, STRUCK PER SCREEN ✓ CERTIFIED · p.456
step triage · the screens are TRIAGED -- ranked, not just listed ✓ CERTIFIED · p.457
step error_value_tagging · tagging IN THE ATTRIBUTE ITSELF, the book's second mechanism ✓ CERTIFIED · p.458
step risk · the risk of moving forward, ACCEPTED IN WRITING ✓ CERTIFIED · p.457
step source_requirements · what goes BACK to the provider ✓ CERTIFIED · p.457
step wiring · EVERY FAILURE LANDS AS A ROW -- not a screen until it drops one ✓ CERTIFIED · 2 of 2 tables · p.457