Which statement best describes what Visual Preview and Data Inspector are used for?

• A. Visual Preview only
• B. Data Inspector only
• C. Both Visual Preview and Data Inspector
• D. Neither

Answer: (C)

Both Visual Preview and Data Inspector are used to verify and debug data during FME development. Visual Preview lets you visually inspect the geometry and spatial arrangement of features as the workspace runs, helping you confirm shapes, placement, and how coordinates are being transformed. Data Inspector, on the other hand, lets you examine attribute data—values, types, and distributions—to ensure mappings are producing the expected data and to catch issues like nulls or incorrect formats. Using them together gives a complete check: Visual Preview confirms geometry and spatial relationships, while Data Inspector validates the attributes and data quality. Relying on only one would miss either geometry behavior or attribute correctness.