Page 29 - BIM and ISO 19650 from a project management perspective

This is further exemplified through the following figure where it is shown that, in a traditional setting, significant information about
the project is lost between different phases, and this is true for between different stakeholders as well.

project phases
DESIGN PROCURE BUILD OPERATE

information ideal information flow

BIM information flow
traditional information flow
loss of information

time

Figure 8. Knowledge base throughout the project lifecycle 11

With an agreed source of knowledge in the form of a BIM model, information is better communicated and remains within the knowl-
edge base even after stakeholders who have implemented this knowledge have finished with their involvement in the project.

The interoperability should be available for both the baseline data (BIM model, through the ISO 16739:2013 Industry Foundation
Classes standard) and analyses results (clash detection, cost simulations BIM5D, construction simulations BIM4D).
Current open formats should be extensively utilised, as they will be the basis for most open formats in the future (most of them have
existed for many years and have had several iterations and versions, gaining popularity and user base along the way):
• ISO 16739:2013 Industry Foundation Classes (IFC), as well as the newer IFC 4 with 4D/5D support and oncoming ver-
sion IFC 5 with infrastructure support (with buildingSMART International being the main organisation working on this
format)

11 Source: Eastman, C., Teicholz, P., Sacks, R., & Liston, K (2011). BIM Handbook: A Guide to Building Information Modeling for Owners, Managers, Designers, Engineers, and Contractors. Hoboken,
NJ: John Wiley & Sons. 29