Which section of the workspace took the longest to run?

• A. Reading
• B. Transforming
• C. Writing
• D. Staging

Answer: (A)

Data input often sets the pace in an FME workflow. The reading step has to fetch data from the source, decode formats, and convert everything into the internal feature model. That initial I/O and parsing work tends to dominate total run time, especially with large files, slow storage, or network sources. Once features are flowing into the transformer network, processing tends to be more streamlined and pipeline-friendly, so it usually doesn’t eclipse the read time. Writing can add delay if the destination is slow or requires substantial serialization, and staging adds extra disk I/O only when used, but the read phase is typically the bottleneck. That’s why reading is the longest section in this scenario.