What is Drawin Building Construction?

i guess you're asking what is building construction drawing? this is a drawing approved by the project management for project implementation. sometimes, the plan made during the design stage cannot be executed at site for various reasons like for example, if there were proposed changes requested by the owner or maybe even minor change like rerouting of pipe or cables to name a few. usually, the designer issues a construction drawing affecting major changes to the project management team and to the contractors and subcontractors and for small changes or a need to show a detailed execution drawing, the contractor or subcontractor will submit a drawing (with the proposed changes incorporated)  or a detailed work execution drawing to the project management "for approval". and once approved, this will be the construction drawing READY for implementation.