PRODUCT DESIGN PERSPECTIVE
Chen Wei
Data Integrity
The question this perspective asks
Can a user tell where this number came from and whether it is current?
This perspective keeps market data understandable. TrueFix should preserve the provider, timestamp, currency, adjustment method, and revision history instead of presenting every number as equally reliable.
What it checks
SourceShow which provider supplied the value.
FreshnessMake timestamps and stale data visible.
RevisionsKeep corrections and transformations explainable.