Building information modeling (BIM) is a process involving the generation and management of digital representations of physical and functional characteristics of a facility. The resulting building information models support decision-making about a facility from earliest conceptual stages, through design and construction, and its operational life and eventual demolition. This process is supported by various tools and technologies. Building information models are often files but not always in proprietary formats and contain proprietary data that can be extracted, exchanged, or networked to support decision-making regarding a built asset. This information is shared either through openBIM or closeBIM format. So, what is openBIM and why is it important, let's understand.
open BIM is a format that allows each and every project member to access the information model without hampering the native design. It is a universal approach to collaborate with design, realise, and operate buildings based on open standards like IFC, BCF, and others.
To have a better understanding, let's take a concrete example. When we write a document and want to share it with someone, we usually send it in PDF format. The PDF format allows to see the document, add comment and suggestions but keep the original text or visuals unchanged. However, it is not the same as when we share that document in a word format. It is easy to change the original text in that way. Same is with BIM. Here we create a model and then we send it to all project members. If we share it in native file format chances are that anyone can make changes in the original model. But, when the model is shared in open BIM format then the data of it is viewable, measurable, and usable, and the model content is protected. The original file cannot be altered by any other member. openBIM supports transparent, open workflow, allowing project members to participate in it regardless of the software tools they use. It is an approach — a philosophy that empowers all industry stakeholders to participate with meaningful, bi-directional workflows, resulting in better buildings.