- Project plans
- Project activities
- Legislation and standards
- Industry context
Last edited 20 Sep 2018
Data drops for BIM
See also our Step-by-step guide to using BIM on projects supported by more than 100 linked articles.
Building Information Modelling (BIM) is a very broad term that describes the process of creating and managing digital information about a building or other facility (such as a bridge, highway, tunnel, and so on).
To ensure projects are properly validated and controlled as they develop, data is extracted from the evolving building information model and submitted to the client at key milestones. This submission of data is described as a 'data drop' or 'information exchange'.
Generally, data drops are aligned to project stages, and the information required reflects the level of development that the project should have reached by that stage. This might be considered analogous a stage report on a conventional project.
The nature of data drops should be set out in the Employer's Information Requirements (EIRs). The EIRs may be considered to sit alongside the project brief. Whilst the project brief defines the nature of the built asset that the employer wishes to procure, the EIRs define information about the built asset that the employer wishes to procure to ensure that the design is developed in accordance with their needs and that they are able to operate the completed development effectively and efficiently.
Data drops are likely to include:
- Models (Industry Foundation Classes (IFC) models and native project information models).
- Data structures (such as COBie files and schedules).
- Reports (typically PDFs, although native files can be more useable).
The client will check the data in terms of compliance with the Employer's Information Requirements, compliance with the brief, cost/price, and so on, before deciding whether the project should proceed to the next stage. See Employer's decision point for more information.
The timing and exact requirements for data drops will vary with the nature of the project and the needs of the client, however, the RIBA Plan of Work proposes six data drops aligned with the following stages:
- Design brief
- Design development / technical design
- Production information / tender documentation
- Practical completion
- Post-practical completion
 Related articles on Designing Buildings Wiki
Featured articles and news
A form of procurement where the contractor provides a single point of contact for a supply chain.
A month after the devastating fire, emergency reconstruction works are underway.
The London Build Expo is hosting a Diversity in Construction panel and networking session on October 24.
Analysis can help develop a specification, but must not lead to inappropriate specifications being accepted.
Dos and don'ts for creating a smart home.
New ICE publication recommends pay-as-you-go tax to fund roads and other financing options.
BSRIA launches a White Paper on wearable technology and wellbeing in buildings.
Have the pressures of the market shredded the core values of professionalism?
Lead times are a measure of the amount of time that elapses between initiating and completing a construction process.