GMI Architecture & System Design 2 — Questions and Answers
Question 1: In a graphic measurement system, what does a distributed rendering architecture primarily solve?
- Single-point-of-failure risk and throughput bottlenecks (Correct answer)
- Color calibration across output devices
- File format conversion between vector and raster
- Font substitution in embedded workflows
Correct answer: Single-point-of-failure risk and throughput bottlenecks
Distributing rendering nodes eliminates bottlenecks and ensures the pipeline stays available when individual nodes fail.
Question 2: Which measurement architecture pattern separates data acquisition from data analysis using an intermediary buffer?
- Peer-to-peer mesh
- Event-driven pipeline with message queue (Correct answer)
- Monolithic batch processor
- Direct database polling
Correct answer: Event-driven pipeline with message queue
An event-driven pipeline with a message queue decouples data producers from consumers, enabling independent scaling of each stage.
Question 3: A GMI-certified workflow requires that measurement data remain auditable. Which architectural component best supports this requirement?
- In-memory cache layer
- Immutable append-only event log (Correct answer)
- Stateless REST API gateway
- Read replica database
Correct answer: Immutable append-only event log
An immutable append-only event log records every measurement event in sequence without modification, satisfying audit trail requirements.
Question 4: When designing a system to handle print density measurements at 1,200 dpi across large-format media, which architecture concern is most critical?
- User authentication latency
- High-throughput data ingestion and storage scalability (Correct answer)
- HTML rendering performance
- Third-party API rate limits
Correct answer: High-throughput data ingestion and storage scalability
High-resolution large-format scans generate massive data volumes, so the system must ingest and store data at scale without loss.
Question 5: In a tiered measurement system, the 'edge tier' is responsible for which function?
- Long-term archival storage
- Central report generation
- Local data capture and preprocessing close to the measurement device (Correct answer)
- User-facing dashboard rendering
Correct answer: Local data capture and preprocessing close to the measurement device
The edge tier sits nearest to the physical device, capturing raw measurements and performing initial preprocessing before forwarding upstream.
Question 6: Which design pattern allows a GMI measurement platform to add new output format exporters without modifying core processing logic?
- Singleton pattern
- Plugin/strategy pattern (Correct answer)
- Active record pattern
- Observer pattern
Correct answer: Plugin/strategy pattern
The strategy pattern encapsulates each exporter as an interchangeable component, letting new formats be added without touching core logic.
Question 7: A color measurement system must correlate spectrophotometer readings with press output in near-real-time. Which integration architecture minimizes latency?
- Nightly batch ETL pipeline
- WebSocket-based streaming integration (Correct answer)
- Weekly CSV file exchange
- Polling REST endpoint every 60 seconds
Correct answer: WebSocket-based streaming integration
WebSocket streaming pushes measurement data as soon as it is captured, minimizing the delay between device reading and system response.
GMI Architecture & System Design 2
In a graphic measurement system, what does a distributed rendering architecture primarily solve?