Which of the following is a valid component category used to modify data in an FME workspace?

• A. Readers
• B. Writers
• C. Transformers
• D. Feature Types

Answer: (C)

Transformers are the components that modify data as it flows through an FME workspace. They take input features, apply operations such as changing attributes, altering geometry, filtering, or routing, and pass the transformed features downstream. Readers and Writers are about bringing data into the workspace and sending it out, not modifying it. Feature Types define the dataset’s schema and geometry, not processing steps. So, to actively change or transform the data within the workflow, you use transformers.