Data Management & Integration Flashcards

A facility is migrating its press measurement database from an on-premises server to a cloud platform. What should be done FIRST before migrating production data?

Answer: Perform a full backup and validate data integrity on the source system

A full backup with integrity validation ensures a safe recovery point exists and confirms the source data is complete and consistent before any migration begins.

Which integration pattern is best suited for synchronizing color measurement data between a pressroom MIS and a cloud-based QC dashboard without tight coupling?

Answer: Message queue (e.g., RabbitMQ or Kafka) with publish-subscribe pattern

A message queue with publish-subscribe decouples the MIS from the dashboard, allowing each system to evolve independently while ensuring reliable data delivery.

In GMI data management, what does 'data lineage' refer to?

Answer: The traceable history of how data was collected, transformed, and moved through systems

Data lineage documents the complete lifecycle of a data record — its origin, all transformations applied, and every system it passed through — enabling full traceability.

Which indexing strategy would most improve query performance when retrieving all measurements for a specific press run ID from a table with 50 million rows?

Answer: Clustered index on the press_run_id column

A clustered index on press_run_id physically orders the table rows by that key, making range and equality lookups on press run data extremely fast.

A reporting discrepancy arises because two systems calculate ΔE differently (ΔE76 vs. ΔE2000). What is the correct resolution?

Answer: Standardize both systems to use the same ΔE formula as specified in the contract or standard

Different ΔE formulas are not interchangeable; the applicable standard or contractual specification must define which formula both systems use to ensure comparable results.

When designing a data retention policy for press measurement records, which factor should primarily drive the retention period?

Answer: Regulatory requirements, contractual obligations, and dispute resolution needs

Retention periods must satisfy legal regulations, client contracts, and the window during which measurement data may be needed as evidence in quality disputes.

Which technique allows a measurement integration system to detect that an incoming data file has been corrupted or tampered with during transmission?

Answer: Verifying the file's cryptographic hash (e.g., SHA-256) against a pre-shared checksum

A cryptographic hash produces a unique fingerprint of the file; any change to even one byte produces a different hash, reliably detecting corruption or tampering.