modal4dHere we explore 3D, 4D, 5D and 6D Building Information Modelling (BIM) and show how adding extra information can make for more timely decisions and ultimately better buildings.Teknika : Engineering and Sains Journal ISSN 2579-5422 on Volume 1, Nomor 2, Desember 2017, 111-116 ISSN 2580-4146 print 111 IMPLEMENTASI MODEL FOUR-D (4D) UNTUK