Contractors' work is nothing but information management through designing, engineering, procurement and construction. As opposed to the general perception of construction industry, it is a high level knowledge workers’ job. Delivering the completed physical structure is not the only contractual obligation, but also handing over the data, information and knowledge of the structure.

Nowadays contractors’ works are heavily dependent on computer data processing. 2D, 3D CAD data, calculation data, equipment and attribute data, vendors’ data, procurement data and documents, just to name a few.

However the more and more software tools are used, separately served for various purposes, the complexity, integrity and data quality become harder to manage. The amount of data for a large scale project easily exceeds those of decent size enterprises. Dealing with this sheer volume of data and the complexity in a limited project timeframe, requires a good data management framework.

This presentation is a case study of large scale international projects, which covers the following points:

• How DMBOK is used?
• Who benefits from data quality and why do they ask for it?
• Problems of project base data management
• How to achieve data quality in a limited project time?
• What framework is required to manage the data?
• What did we do and how did we do it?
• How do we keep improving it?