Independent Data Migration Verification

I verify that data survived a migration. A source system export and the corresponding target export are recomputed independently from both files, and every difference is reported: record counts, primary key integrity, field-level values, completeness

• Datenanalyse
• Engineering data management (EDM)
• SAP Datenmigration

Deterministic data pipelines built to fail loudly rather than silently: record count reconciliation at every stage, explicit fail states, and part and merge logic for datasets exceeding a single processing pass. Encoding and delimiter variation handled explicitly rather than assumed.

Controlled document authoring to ISO 13485 clause 4.2.4 conventions: document control block, revision history, findings structured as condition, criteria, cause, effect and recommendation, severity ratings, limitations statement, data dictionary, gap register and acceptance page.

Structuring of post-market complaint data: deduplication, device name normalisation so events can be counted by product, terminology codes proposed from free-text narrative, and every missing field flagged with the count of records it affects.

GAMP 5 second edition, EU GMP Annex 11, 21 CFR Part 11, ISO 13485, EU MDR post-market surveillance, MDCG 2022-21, 21 CFR 820.198, 21 CFR 803, IMDRF Adverse Event Terminology.