Zone Posted on 30th December 201529th April 2021 by ThePD (The Project Definition) A Zone is an area or a region set off as the distinct surrounding or adjoining, or different from the areas around. Click to share on Twitter (Opens in new window)Click to share on Facebook (Opens in new window)Click to share on LinkedIn (Opens in new window) Related Posted in General and tagged zone. ThePD (The Project Definition) ThePD has been developing the Preferred Project Definitions based on the actual project execution and operation experiences and knowledge with the Project Language, and sharing with you daily basis.