: Ensuring that data fields (like regulatory trade IDs) are correctly identified and "fixed" within a system's logic to prevent cleared trade errors. The Importance of "Fixed" Systems in Software
A custom PL/SQL function in the source Oracle database returned NULL for UNIT_COST on newly added products. ERDAICC’s null-handling logic caught the exception, logged "fixed" (by substituting a zero), but then triggered a division-by-zero in a downstream discount calculation.