## 3 The First Workshop: Reviewing Existing BIM Guides
### Reviewing Existing BIM Guides  
The authors reviewed four domestic and seven international BIM guides in order to figure out how closely they would fit to the desired BIM guide. Table 4 shows the review results from the 11 guides. Five categories to classify the contents of the guides were established as follows: Generals, BIM Definition, BIM Modeling, BIM Usage at Design Stage, and BIM Usage at Construction Stage. The classification was made for convenience  
\begin{table}
\begin{tabular}{c c c c} \hline \hline \multirow{2}{*}{**Level**} & **Construction Capacity** & \multirow{2}{*}{**Numbers**} & **The Predetermined Range of Project Sizes to** \\  & **Evaluation (M: million)** & & **Contract (Before Bidding Price)** \\ \cline{3-4}  & & & **Civil Works** & **Architectural Works** \\ \hline
1 & More than USD 500 M & 58 (0.46\%) & More than USD 142 M & More than 5100 M \\ \hline
2 & USD 500 M–USD 100 M & 137 (1.08\%) & USD 142 M–USD 79 M & 5100 M–579 M \\ \hline
3 & USD 100 M–USD 50 M & 176 (1.4\%) & USD 79 M–USD 46 M \\ \hline
4 & USD 50 M–USD 27.5 M & 302 (2.4\%) & USD 46 M–USD 33 M \\ \hline
5 & USD 27.5 M–USD 16.7 M & 500 (4\%) & USD 33 M–USD 18 M \\ \hline
6 & USD 16.7 M–USD 10 M & 823 (6.5\%) & USD 18 M–USD 11 M \\ \hline
7 & USD 10 M–USD 6.7 M & 640 (5.05\%) & USD 11 M–USD 6.7 M \\ \hline Others & Less than USD 6.7 M & 10,015 (79.2\%) & Less than USD 6.7 M \\ \hline Total & & 12,651 (100\%) & \\ \hline \hline \end{tabular}
\end{table}
Table 3: The levels of construction capacity evaluation policy in Korea [42].  
The 4 advising subjects in the workshops were requested to estimate whether the 27 items could systematically guide the POs to understand the tasks they were supposed to perform in procuring a BIM service. Additionally, they were solicited to determine whether there was be a guide among the 11 that could be used as the one-stop reference. The subjects pointed out that while a few of the guides were relatively more comprehensive than the others, barely any of them could be usable as the one-stop reference.  
Among the guides, it was found that the one from PSU [20] delivered three categories that the POs needed to focus on when planning BIM service procurement: BIM Team Selection, Contract Procurement, and Project Execution. Additionally, four documents in the categories were emphasized as being necessary to prepare, including the RFQ, the RFP, BIM Contract Requirements, and Standard BEP Template. It was understandable that the principles and criteria of BIM Team Selection were necessarily addressed in the RFQ and RFP development. Likewise, the category of Contract Procurement embraced BIM Contract Requirements, and the category of Project Execution contained the Standard BEP Template.  
The advising subjects said that a new guide should necessarily include the three categories and the four documents, since these cover the fundamental tasks required when the POs procure the BIM services. It was also concluded that as a matter of course, a few of the categories and documents would be either modified or invented to meet research purposes; however, the items still provided insight about what the POs should concentrate on in order to be successful in procuring BIM services.