A new framework for construction project definition stagePikas, Ergo; Oehmen, Josef; Koskela, Lauri; Thuesen, ChristianDesign 2018 : Excellence in design : 15th International Design Conference, May, 21-24, 2018 - Dubrovnik, Croatia : [proceedings]2018 / p. 1301-1312 : ill https://doi.org/10.21278/idc.2018.0542