*Article* **Research on BIM Application Two-Dimensional Maturity Model**

**Changqing Sun 1,2, Hong Chen 3,4,\*, Ruyin Long 3,4,\* and Ruihua Liao <sup>5</sup>**


**Abstract:** The existing project management maturity models and BIM maturity models have obvious deficiencies in evaluating the management level of engineering projects with BIM applications. This study aimed to use accepted assessment indexes to design an innovative BIM application maturity model suitable for different projects with BIM applications. This study proposes the concept of BIM Application Two-Dimensional Maturity (BATM), which simultaneously emphasizes the project business management (PBM) and project BIM application (PBA) maturities. The BATM model assesses the PBM and PBA maturities based on eight performance domains and 37 desired outcomes of PMBOK 7th edition. The application case shows that the use of the BATM model is simple and its effect is obvious. This study is the first to assess the BIM application maturity from the two dimensions of PBM and PBA, and provides new insights into the project BIM application maturity assessment. The application case sets an example for other companies to assess and improve their BATM.

**Keywords:** project management; project BIM application; two-dimensional maturity; maturity model; PMBOK
