The BIM Charter is an essential element among the documents that govern a BIM process which establishes the policy and guidelines for a project owner's BIM strategy.
Unlike the BIM specifications document or the BIM Convention, the BIM Charter concerns all Project management projects. For example, it will specify the general principles for producing the digital model, the deliverables expected according to the targeted use cases and phases of the building's life cycle, the technical specifications of the digital model and the roles and responsibilities of the actors.
The BIM requirements docuement is a part of the documents that govern a BIM process. It succeeds the BIM Charter and will be accompanied by the BIM Convention to frame a BIM project.
The BIM requierments document, is a document specific to the project owner, aims to explore in detail the objectives and expectations of putting a project into the BIM context.
To do this, the documents will be inspired by the more global BIM strategy specified in the BIM Charter, and will apply it to the specificities of a project.
Thus, it will specify elements such as the project's BIM objectives and use cases, the project milestones and associated deliverables, the responsibilities of the stakeholders and the technical requirements of the model (georeferencing, tree structure, format, format, naming rules, control method, etc.).
The BIM conventiont is a document that is inspired by the guidelines of the BIM Charter and the BIM requirements document. Its objective is to provide an operational BIM strategy for a project.
On a major project, several BIM conventions can follow one another for each of its phases (e.g : a BIM convention can be defined for the design phase, then followed by another agreement for the execution phase for the pm).
Together, these agreements define the BIM Execution Plan for the project.
At the same time, the agreements themselves are evolving since a project is a long-term project. The agreement therefore evolves naturally to adapt to new actors, to the uses and needs of the project.
A history of versions should therefore be maintained.
It is not always necessary to produce a 3D model of your building to take advantage of a digitization project: a multitude of technical uses are also possible around a point cloud.
This 3D footprint of the building, which is particularly faithful to reality, is a healthy basis for conducting detailed studies (e.g. deformation studies, infrastructure and equipment audits, etc.).
The point cloud is also a representation of the existing to which a 3D model or plans can be compared to detect discrepancies and be updated.