AISE (Association of Iron and Steel Engineers) Posted on 1st November 201515th July 2021 by ThePD (The Project Definition) The Association of Iron and Steel Engineers (AISE) refers to the Association for Iron and Steel technology (AIST) 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 Engineering and tagged csa, institute, structure. 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.