Understanding the Differences Between BIM, CAD, VDC, Revit and ARCHICAD

Each of these technologies plays a unique role in the lifecycle of building design and construction. Let's explore how BIM, CAD, VDC, Revit, and ARCHICAD shape the world around us.

BIM - Building Information Modeling

BIM is a process that utilizes 3D components and objects to create a 3D BIM model of a building. It represents the collaborative process of all entities involved in the construction and lifecycle management of built assets, working together to share and act on information. BIM's true capability lies in the 'I' - information, from conception to completion. All gathered information is not only stored but also actionable. This makes BIM highly collaborative, allowing architects, engineers, real estate developers, contractors, manufacturers, and other construction professionals to plan, design, and construct buildings within a unified 3D model. The information in a BIM model is shared via a common data environment (CDE), an online space where all entities can access and collaborate on the project.

CAD - Computer Aided Drawings

CAD (Computer Aided Design) uses computer software to create digital designs of real-world objects, serving as a form of digital paper and pencil. It allows for easy changes to be reversed and even for tests to be conducted without physical construction. In the future, CAD software programs will revolutionize workflow and project management within the construction process.

VDC - Virtual Design Construction

VDC is an advanced construction methodology that leverages 3D modeling, digital technologies, and real-time collaboration to plan, design, and manage the flow of work more efficiently. It enables the development of a digital twin of physical objects, allowing all project entities to visualize, analyze, and optimize every aspect of the construction process from conception to completion. While there might be confusion between BIM and VDC, it's important to note that VDC is a subset of BIM, specifically focused on converting design into construction.

Revit

Revit is a BIM software that supports both parametric and direct, non-parametric modeling. This allows architects and engineers to develop unlimited design changes while setting up precise design and construction workflows in BIM. It is a tool that enables the BIM methodology for various AEC industry workflows, including design and documentation. Revit is often mistakenly considered synonymous with BIM, but they are distinct. BIM covers many AEC workflows, while Revit is one of the software solutions facilitating those workflows.

ARCHICAD

ARCHICAD is an architectural design software that is exceptional for advanced workflows beyond basic drafting. It aligns project delivery from the conceptual stage to the final documentation stage through the BIM methodology. Despite having 'CAD' in its name, ARCHICAD is a BIM tool. In fact, it was one of the first BIM software programs to be available in the 1980s. Both ARCHICAD and Revit are tools that support the BIM process, each with its own unique features and strengths.

In conclusion, while BIM, CAD, VDC, Revit, and ARCHICAD all serve important roles in the construction industry, they have distinct differences and applications. Understanding each one can help project teams choose the right tools for their specific needs, leading to more efficient and successful construction projects.