Manuals / Data Literacy / Chapter 7

C · Decisions · intermediate · Week 3 · Chapter 7 of 8

Data quality as a bug class

Missing events, duplicate sends, clock skew, timezone bugs — treat analytics defects as product defects when decisions depend on them.

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Step 1 of 1

Instrumentation check

Instrumentation checkDrag stickies · tap for tips
Study mapDrag stickies · tap for tipsKeep it shortdrag · tap →Name the waitdrag · tap →Scope locatorsdrag · tap →Trace when stuckdrag · tap →One browser firstdrag · tap →Isolate statedrag · tap →Assert the UIdrag · tap →Retry wiselydrag · tap →Seed datadrag · tap →Close the loopdrag · tap →Keep it shortdrag · tap →Name the waitdrag · tap →Scope locatorsdrag · tap →Trace when stuckdrag · tap →One browser firstdrag · tap →Isolate statedrag · tap →Pathwise hackdrag · tap →Instrumentation chdrag · tap →Try thisdrag · tap →Follow the dashed drag · tap →

Do this now

For one flow, list expected events. Verify they fire once with expected props.

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Chapter learning outcomes
  • Event QA
  • Instrumentation reviews

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