Activity codes are the backbone of structured analysis.

Creating a clear dictionary ensures every project has its own hierarchy, without confusion from global values.

By default, codes can span across projects, but defining them at the project level keeps your breakdown focused and relevant.

With a structured dictionary, you can:

Organize activities using the funnel method (e.g. Zone → Floor → Category of Work → Type of Work)

Keep analysis laser‑focused by drilling down to the lowest level (e.g., block work, plaster, paint)

Avoid overlap between categories and types by setting clear definitions from the start

Create families of codes with values like SB for substructure or SP for superstructure

This funnel structure makes it easy to move from high‑level zones down to specific tasks, ensuring clarity at every stage.

Good schedules build code dictionaries that make analysis precise and scalable.