###### Abstract  
The Architecture, Engineering, and Construction (AEC) industry faces significant global challenges, including frequent project delays, budget overruns, and inadequate stakeholder collaboration. To address these issues, Value Engineering (VE) and Building Information Modeling (BIM) have been increasingly used in large-scale, complex construction projects. Although many studies highlight the benefits of integrating VE with BIM, its full practical potential has not yet been realized. This study aims to investigate the integration of VE and BIM within a Common Data Environment (CDE) to improve decision making and project outcomes. A comprehensive framework was developed, consisting of four interconnected modules: (1) Creating the CDE, (2) Developing the BIM Model, (3) Implementing Value Engineering, and (4) Conducting a Value Engineering Study. Central to this framework is the introduction of the VEIDEA\" data bank, a structured system based on the Omnig-Class classification, which stores and organizes VE ideas. Additionally, the framework incorporates the Analytical Hierarchy Process (AHP) to automate the evaluation phase, assisting designers and VE teams in making data-driven decisions on design alternatives. Empirical results from a case study of an office building show significant cost savings, with a 20% reduction in reinforced concrete (RC) slab costs and a 39% reduction in flooring material costs. These findings demonstrate the potential for integrating VE and BIM to enhance cost-effectiveness and overall project performance. This study offers a novel approach to optimizing project collaboration, decision making, and efficiency in the AEC industry. v 2024 20  
Value Engineering has long been recognized as a systematic and innovative approach for enhancing project value by reducing costs while optimizing performance [3]. It involves a multidisciplinary team that evaluates project requirements, generates alternatives, and selects the most efficient solutions to achieve desired functionalities at minimal cost. A review of VE literature highlights that its success is closely tied to effective communication and structured collaboration among project stakeholders, which underscores the importance of coordinated activities for achieving optimal outcomes. Similarly, Building Information Modeling (BIM) is heralded as a transformative technology within the AEC industry, known for its capacity to produce comprehensive digital representations of buildings [4]. BIM facilitates improved planning, design, construction, and operation processes, significantly boosting efficiency and productivity, particularly during the design phase. Despite its recognized advantages, BIM adoption, especially among small and medium-sized enterprises (SMEs), faces several barriers that need to be carefully considered for broader implementation [5]. The integration of VE and BIM presents a valuable opportunity to advance project management practices in the AEC sector. While both methodologies have proven benefits individually, the synergistic potential of integrating them remains underexplored. Few studies have examined the combined effects of VE and BIM on construction projects, and there is a noticeable lack of frameworks guiding their effective integration [6; 7]. This gap represents a critical opportunity for advancing both research and practical applications in the field. In response to this research and practice gap, this study aims to develop a comprehensive framework for integrating VE and BIM within a Common Data Environment (CDE) to optimize construction project outcomes. The proposed framework will offer AEC professionals a structured approach for applying VE in conjunction with BIM, ultimately enabling better cost management and enhanced project performance. By bridging the gap between the theoretical potential of these methodologies and their practical implementation, this study seeks to provide practitioners with the tools necessary to fully leverage the benefits of VE-BIM integration.