FTB-C000038 / Implementation concept

Suffix Recalculation

Recomputing a corrected observation and every later output whose recursive state may depend on it.

Also known asSuffix recomputationCorrection propagation

Advanced 15 linked topicsPublished

Definitions

In plain terms

When an old input changes, a recursive indicator can change on that date and on every later date, so recalculation continues through the affected suffix.

Technical

Processing restarts from the last valid checkpoint before the earliest changed observation and deterministically recomputes each subsequent state in sequence.

Scope

This policy applies to path-dependent calculations; independent per-session measures may not require suffix-wide recomputation.

Examples

  • Correcting observation 42 requires recalculating observations 42 through 60 for an EMA-based oscillator.

Common misconceptions

  • Replacing only the corrected day's displayed output does not repair later recursive states.

Concept relationships

Prerequisites

Related

Derived from

Required by

Where this concept is used

Tutorials planned

These catalogued topics use this concept, but their complete build has not shipped yet.

  • D01-F04-A05 Important
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Evidence and governance

  1. Fintech Builder Glossary Definition Contract The Fintech Builder · internal governed contract

    Supports: short definition, technical definition, variant distinction

    Limits: Defines governed platform behavior rather than claiming these policies are universally prescribed by external McClellan methodology.

Reviewed by
Last reviewed
2026-07-26
Next review
2027-07-26
Record status
published
Written by

Fintech engineer building market-data and financial systems, and the author of every article, glossary record, and reference implementation on The Fintech Builder.