Data Management & Integration Flashcards

A brand owner requests that all substrate measurement data be stored separately from ink measurement data in the integration database. Which database design principle does this reflect?

Answer: Separation of concerns through entity decomposition

Separating substrate and ink entities reflects the principle of decomposing data into distinct, logically cohesive tables to reduce coupling and improve maintainability.

When integrating GMI measurement data with a color quality management platform via REST API, which HTTP method should be used to update an existing press run record?

Answer: PUT

PUT replaces an existing resource entirely with the submitted data, making it the correct method for updating a complete press run record.

Which data storage strategy minimizes retrieval latency for frequently queried densitometric trend reports?

Answer: Creating indexed views or materialized views on commonly queried aggregations

Indexed or materialized views pre-compute aggregations and apply indexes, dramatically reducing query time for recurring trend reports.

In a distributed measurement network, what is the primary risk of using local system clocks without synchronization for timestamping measurement events?

Answer: Clock drift causing events from different sites to appear out of order

Without NTP or equivalent synchronization, clock drift between sites causes measurement timestamps to become unreliable, breaking chronological ordering and correlation.

A GMI data integration workflow uses XML as its interchange format. Which technology is used to define and validate the structure of these XML documents?

Answer: XML Schema Definition (XSD)

XSD (XML Schema Definition) defines the elements, attributes, data types, and structure rules that an XML document must conform to for validation.

Which strategy ensures that historical measurement records remain unaltered even when a press undergoes recalibration?

Answer: Use immutable record storage with versioned calibration references

Immutable records combined with versioned calibration references preserve the original measured values while still allowing analysis under the new calibration context.

When a press operator's measurement data fails to load into the central database due to a schema mismatch, what should the integration system do by default?

Answer: Reject the record and log a detailed error for review

Rejecting the record and logging a detailed error preserves data integrity while providing the information needed to diagnose and fix the mismatch.