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| Row | Challenges | Expert 1 | Expert 2 | Expert 3 | Expert 4 | Expert 5 | Expert 6 | Expert 7 | Expert 8 | Expert 9 | Expert 10 | Expert 11 | Expert 12 | Expert 13 | Expert 14 | Expert 15 | Expert 16 | Expert 17 | Expert 18 | Expert 19 | Expert 20 |
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| 1 | Lack of research on native technology | 2 | 1 | 3 | 3 | 3 | 3 | 1 | 2 | 3 | 2 | 2 | 3 | 2 | 3 | 2 | 3 | 3 | 5 | 3 | 2 |
| 2 | Lack of a single source for effective use of BIM technology (by-laws and native BIM standards) | 4 | 2 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 5 | 5 | 2 | 4 | 5 | 5 | 4 | 4 | 3 | 5 | 5 |
| 3 | The lack of object library of making well use of standard | 3 | 1 | 3 | 3 | 3 | 3 | 2 | 1 | 1 | 3 | 3 | 4 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| 4 | Lack of interaction between professionals | 4 | 2 | 2 | 3 | 2 | 3 | 2 | 3 | 4 | 2 | 1 | 2 | 3 | 2 | 2 | 1 | 3 | 4 | 3 | 3 |
| 5 | Incomplete BIM design software models | 2 | 1 | 5 | 5 | 2 | 5 | 3 | 4 | 2 | 2 | 3 | 1 | 3 | 3 | 3 | 2 | 2 | 2 | 4 | 2 |
| 6 | There are no technical countermeasures’ plans for BIM software errors to validate | 3 | 1 | 4 | 4 | 3 | 4 | 3 | 2 | 3 | 2 | 4 | 2 | 2 | 4 | 3 | 2 | 4 | 1 | 5 | 2 |
| 7 | Inconsistency with traditional 2D and 3D data and increased design workload | 3 | 3 | 4 | 3 | 2 | 3 | 4 | 1 | 2 | 3 | 5 | 3 | 4 | 3 | 5 | 4 | 3 | 2 | 1 | 4 |
| 8 | Lack of scalability of BIM performance | 1 | 1 | 3 | 3 | 3 | 3 | 1 | 2 | 4 | 5 | 3 | 2 | 2 | 4 | 1 | 2 | 3 | 4 | 2 | 2 |
| 9 | Lack of interaction and teamwork among project team members | 4 | 4 | 3 | 4 | 2 | 4 | 5 | 5 | 4 | 5 | 5 | 5 | 5 | 5 | 4 | 5 | 5 | 5 | 5 | 5 |
| 10 | Absence of infrastructure and BIM-based electronic data exchange infrastructure (such as Internet speed) | 4 | 4 | 5 | 4 | 3 | 4 | 4 | 5 | 5 | 4 | 4 | 4 | 4 | 4 | 5 | 3 | 5 | 5 | 2 | 5 |
| 11 | Misunderstanding of BIM technology (lack of recognition of BIM benefits) | 4 | 3 | 4 | 3 | 4 | 3 | 5 | 5 | 2 | 5 | 4 | 5 | 4 | 4 | 5 | 4 | 4 | 4 | 3 | 5 |
| 12 | Not suited to the change of the mode of thinking | 5 | 4 | 3 | 2 | 3 | 2 | 3 | 3 | 3 | 1 | 5 | 1 | 2 | 4 | 2 | 2 | 4 | 2 | 2 | 2 |
| 13 | Psychological resistance to new technology (resistance to changeability) | 5 | 4 | 2 | 3 | 4 | 3 | 4 | 5 | 4 | 4 | 3 | 4 | 2 | 5 | 5 | 4 | 4 | 3 | 4 | 5 |
| 14 | Having a negative attitude towards sharing data sources | 4 | 3 | 2 | 4 | 4 | 4 | 5 | 3 | 5 | 2 | 3 | 5 | 4 | 3 | 5 | 4 | 4 | 2 | 5 | 5 |
| 15 | Costs and time of staff training | 4 | 3 | 4 | 4 | 3 | 4 | 4 | 4 | 4 | 3 | 4 | 5 | 5 | 2 | 5 | 5 | 5 | 5 | 3 | 5 |
| 16 | High cost of BIM software, license, and associated applications | 2 | 1 | 1 | 4 | 1 | 4 | 1 | 2 | 2 | 2 | 1 | 3 | 3 | 3 | 1 | 2 | 2 | 2 | 2 | 2 |
| 17 | Cost of hardware upgrades required | 4 | 2 | 3 | 5 | 3 | 5 | 5 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 3 | 4 | 5 | 5 | 5 |
| 18 | Cost of hiring experts | 3 | 3 | 4 | 4 | 3 | 4 | 4 | 5 | 3 | 4 | 3 | 4 | 4 | 5 | 5 | 5 | 4 | 5 | 5 | 5 |
| 19 | The increasing of design costs | 4 | 4 | 3 | 3 | 3 | 3 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 4 | 2 | 2 | 2 | 2 | 1 | 3 |
| 20 | The economic benefits of using BIM technology is not obvious | 4 | 3 | 3 | 3 | 4 | 3 | 2 | 2 | 1 | 4 | 5 | 1 | 4 | 2 | 5 | 2 | 3 | 1 | 2 | 4 |
| 21 | Lack of client demand | 2 | 2 | 4 | 3 | 4 | 3 | 1 | 4 | 2 | 5 | 4 | 1 | 2 | 4 | 3 | 1 | 2 | 1 | 2 | 2 |
| 22 | Recurring need for additional and associated resources | 2 | 1 | 3 | 3 | 3 | 3 | 2 | 4 | 2 | 4 | 4 | 4 | 3 | 3 | 2 | 3 | 3 | 2 | 3 | 1 |
| 23 | There is no sufficient external motivation | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 1 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 3 | 3 | 1 | 2 | 2 |
| 24 | Lack of top management commitment | 2 | 2 | 5 | 3 | 4 | 3 | 3 | 2 | 5 | 2 | 1 | 2 | 3 | 1 | 4 | 2 | 3 | 4 | 4 | 3 |
| 25 | Lack of learning resources of BIM technology | 1 | 2 | 5 | 3 | 1 | 3 | 1 | 3 | 2 | 2 | 2 | 2 | 4 | 5 | 2 | 5 | 2 | 3 | 2 | 2 |
| 26 | Industry’s resistance to change from traditional working practices | 4 | 2 | 3 | 3 | 2 | 3 | 3 | 3 | 1 | 1 | 3 | 4 | 3 | 2 | 3 | 4 | 2 | 5 | 3 | 4 |
| 27 | Lack of experts | 2 | 1 | 4 | 4 | 2 | 4 | 1 | 2 | 4 | 5 | 3 | 4 | 2 | 4 | 4 | 5 | 4 | 2 | 2 | 2 |
| 28 | Lack of practical experience and academic exchanges of BIM project | 2 | 2 | 5 | 2 | 2 | 2 | 2 | 3 | 3 | 4 | 2 | 5 | 3 | 3 | 2 | 2 | 5 | 3 | 3 | 2 |
| 29 | There is no issued BIM standards and guidelines by policy sectors and industries competent authorities | 4 | 3 | 2 | 3 | 3 | 3 | 5 | 2 | 1 | 3 | 3 | 2 | 4 | 2 | 2 | 3 | 2 | 4 | 2 | 1 |
| 30 | The project participants are not accustomed to collaborative work mode | 2 | 1 | 5 | 1 | 1 | 1 | 1 | 3 | 1 | 4 | 2 | 1 | 2 | 2 | 4 | 3 | 4 | 3 | 3 | 3 |
| 31 | Lack of systematic BIM training courses | 2 | 3 | 3 | 4 | 1 | 4 | 1 | 2 | 3 | 3 | 3 | 2 | 3 | 1 | 1 | 5 | 3 | 2 | 4 | 3 |
| 32 | Sanctions some of the key advantages and disadvantages of BIM | 4 | 2 | 5 | 5 | 2 | 5 | 4 | 4 | 5 | 4 | 4 | 3 | 5 | 5 | 5 | 5 | 5 | 5 | 4 | 5 |
| 33 | Unable to use all people involved in the work of BIM software | 4 | 2 | 5 | 4 | 2 | 4 | 5 | 5 | 4 | 5 | 4 | 4 | 5 | 2 | 3 | 5 | 4 | 3 | 4 | 5 |
| 34 | The increasing of workload of the designers | 3 | 2 | 2 | 5 | 3 | 5 | 2 | 3 | 3 | 2 | 2 | 2 | 2 | 3 | 2 | 3 | 3 | 2 | 2 | 2 |
| 35 | It is difficult for version and safety management of the BIM model | 2 | 1 | 3 | 4 | 2 | 4 | 1 | 2 | 4 | 3 | 3 | 5 | 2 | 3 | 5 | 4 | 4 | 1 | 3 | 2 |
| 36 | The risks of reorganization of BIM-based business processes | 2 | 3 | 2 | 4 | 3 | 4 | 2 | 2 | 2 | 3 | 3 | 5 | 3 | 4 | 4 | 5 | 5 | 2 | 1 | 3 |
| 37 | Lack of clear goal of the adoption of BIM technology within the organization | 2 | 2 | 3 | 3 | 2 | 3 | 3 | 3 | 2 | 2 | 5 | 4 | 4 | 2 | 3 | 3 | 3 | 1 | 2 | 4 |
| 38 | There is no long-term BIM applications’ program within the organization | 2 | 2 | 3 | 4 | 3 | 4 | 2 | 3 | 3 | 4 | 4 | 3 | 2 | 3 | 2 | 3 | 4 | 3 | 3 | 2 |
| 39 | Low level of involvement of BIM users in green projects | 3 | 2 | 5 | 3 | 4 | 3 | 2 | 3 | 4 | 5 | 4 | 3 | 3 | 3 | 3 | 3 | 5 | 2 | 1 | 3 |
| 40 | Inadequate workforce experience, knowledge, and skills | 4 | 3 | 3 | 4 | 3 | 4 | 5 | 4 | 4 | 4 | 4 | 5 | 5 | 5 | 5 | 5 | 2 | 5 | 5 | 5 |
| 41 | Lack of initiative and hesitance on future investments | 1 | 4 | 4 | 4 | 3 | 4 | 2 | 2 | 3 | 2 | 3 | 2 | 3 | 2 | 2 | 3 | 2 | 4 | 4 | 2 |
| 42 | Difficulty in assessing environmental parameters of building properties | 2 | 3 | 4 | 3 | 1 | 3 | 3 | 3 | 2 | 3 | 2 | 2 | 2 | 3 | 1 | 4 | 1 | 4 | 2 | 1 |
| 43 | Nonuniformity of sustainability evaluation criteria and measures | 2 | 1 | 4 | 3 | 1 | 3 | 2 | 2 | 3 | 1 | 3 | 3 | 2 | 1 | 3 | 2 | 3 | 3 | 3 | 3 |
| 44 | Nonimplementation of open source principles for software development | 2 | 1 | 3 | 4 | 1 | 4 | 4 | 3 | 4 | 2 | 4 | 5 | 3 | 2 | 2 | 3 | 4 | 2 | 2 | 4 |
| 45 | Lack of government support and relevant organizations to standardize and localize the technology of BIM | 4 | 4 | 2 | 4 | 4 | 4 | 4 | 5 | 5 | 4 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 |
| 46 | The lack of insurance provisions applying to BIM | 4 | 2 | 2 | 3 | 5 | 3 | 3 | 1 | 1 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 4 | 4 | 2 |
| 47 | Lack of regulations and legal measures to protect the intellectual property of the BIM model | 4 | 2 | 3 | 4 | 5 | 4 | 5 | 4 | 3 | 5 | 4 | 5 | 5 | 4 | 5 | 5 | 5 | 3 | 5 | 5 |
| 48 | Failure to mature the mechanism for resolving BIM projects | 4 | 2 | 4 | 4 | 5 | 4 | 4 | 3 | 3 | 5 | 3 | 4 | 5 | 5 | 4 | 5 | 5 | 5 | 5 | 4 |
| 49 | The lack of model text of BIM standard contract | 4 | 3 | 2 | 2 | 4 | 2 | 2 | 3 | 2 | 1 | 2 | 3 | 2 | 3 | 2 | 3 | 3 | 2 | 1 | 2 |
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