TY - CONF TI - A Target Value Maturity Model for Performance Target Management in the Design Phase of Lean Construction Projects C1 - Osaka and Kyoto, Japan C3 - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33) SP - 199 EP - 210 PY - 2025 DO - 10.24928/2025/0278 AU - Ouma, Lorine AU - Leicht, Robert AU - Messner, John AD - PhD Candidate, Department of Architectural Engineering, Pennsylvania State University, University Park, PA, USA, lao5206@psu.edu, orcid.org/0000-0002-7572-3284 AD - Professor, Department of Architectural Engineering, Pennsylvania State University, University Park, PA, USA, rml167@psu.edu, orcid.org/0000-0001-6705-8141 AD - Charles and Elinor Matts Professor, Department of Architectural Engineering, Director, Computer Integrated Construction (CIC) Research Group, Pennsylvania State University, University Park, PA, USA, jim101@psu.edu, orcid.org/0000-0002-7957-1628 ED - Seppänen, Olli ED - Koskela, Lauri ED - Murata , Koichi AB - Inconsistent application of target value processes limits the achievement of performance outcomes in value-driven Lean design. Current target value practices are also cost-centric, sidelining other aspects of performance value. Maturity models have been used to introduce consistency in Lean practices implementation. This paper presents a target value maturity model (TVMM) that aims to support consistent target value practices. It defines target value functions and processes that drive design toward holistic performance targets beyond cost. The TVMM was developed through a structure maturity model creation methodology. It specifies four maturity functions: value planning, control, alignment, and learning, and further defines fifteen target value attributes. Project teams can assess their maturity across six levels from non-existent, to initial, managed, defined, quantitatively managed, and optimized. The model was internally evaluated through three iterations. Clarity on target value functions presented in the model can support consistent implementation and assessment of target value practices in the design phase of projects. The model can also guide alignment of design efforts with targets. Future work will validate this model with industry experts and a case study project. KW - Lean design KW - target value design KW - design management KW - maturity models KW - collaboration. PB - T2 - Proceedings of the 33rd Annual Conference of the International Group for Lean Construction (IGLC 33) DA - 2025/06/02 CY - Osaka and Kyoto, Japan L1 - http://iglc.net/Papers/Details/2423/pdf L2 - http://iglc.net/Papers/Details/2423 N1 - Export Date: 02 June 2025 DB - IGLC.net DP - IGLC LA - English ER -