What does the term 'model is current and consistent' imply in BIM?

The term 'model is current and consistent' in BIM indicates that the models are regularly updated and aligned with project specifications. This means that throughout the construction process, any changes or updates to design, materials, or construction methods are accurately reflected in the BIM models. This consistency ensures that all stakeholders, including architects, engineers, and contractors, are working from the same information, minimizing errors and misunderstandings.

Maintaining current and consistent models is crucial for effective coordination among the various disciplines involved in a project, as it allows for real-time collaboration and decision-making. When the models are aligned with the latest project specifications, it helps in tracking progress, managing resources more efficiently, and adhering to schedules and budgets. This approach also aids in reducing costly rework, improving the overall quality of the construction process.

In contrast, the other options suggest scenarios that do not align with the principles of effective BIM practice, such as only reflecting initial design phases or not updating models to save time, which would create discrepancies and ultimately lead to project complications. Inconsistency across different models is contrary to the goal of having a unified and up-to-date representation of the project, which can lead to significant challenges in communication and execution during construction.