What is BIM

Building information modeling

There was a drawing board and a pencil at first. Subsequently, Computer-Aided Design (CAD) emerged, wherein drawings were created using identical linear tools but executed on a computer. Builders still worked with paper, and project managers managed the project with the help of 2D drawings only. Then came BIM, which marked the transformation from traditional 2D layouts to a 3D information space, a game-changer for the entire construction sector.

Building information modeling (BIM) is a model-based technology linked with a project information database. Simply put, with BIM technology, a building is constructed digitally. In this case, virtual models of each construction block as well as architectural, constructive, and MEP (mechanical, electrical, and plumbing) parts represent a single BIM model. The resulting computer-generated model possesses the precise geometry and information essential for assisting in the building's construction, fabrication, and acquisition processes. Therefore, let us attempt to ascertain BIM’s fundamental principles, essential components, and, without a doubt, its advantages.

The technology is built on three pillars: 3D, Information, and Collaboration.

The technology is built on three pillars: 3D, Information, and Collaboration.

  • 3D Model

    A three-dimensional model of a construction element is its visual representation. A BIM model is a 3D where each object "knows" which construct it is and which one it is associated with.

  • Information Management

    Parameters control the behavior of an element. In the parameters, one can change the properties, thereby managing the information on the project.

  • Collaboration

    Collaboration between designers by linking model files in the Revit model for construction, as well as between the design office and the construction site by sending remarks via a mobile application with a photo and a comment attached to a model element. Both were carried out in the Common Data Environment (CDE).

World construction practice is abounding in errors that led to huge costs and unfinished construction, as well as examples of incorrect reading of drawings by builders due to a lack of information. A three-dimensional representation of the adjoining structures and nodes, together with user-friendly applications for collaboration between project members and information management, would help avoid ridiculous errors in design and construction, saving time and money. Furthermore, in addition to the simulations conducted on the model, such as the building's shape, size and volume, orientation, insulation levels, window sizes, and airtightness factors, there would be no glaring failures such as leaning towers, melting glass skyscrapers, and incomplete tunnels and airports.

Trust me, I am an engineer
Fig. 1 Trust me, I am an engineer

Critical Ingredients for applying BIM technology

  • BIM software for construction

    The basic model development software must have the functionality of the above three criteria. This also applies to Mobile Apps for Construction (for example, SIGNAX BIM software for mobile).

  • BIM specialists

    These are professionals with experience in design and construction, thinking three-dimensionally, proactive, and trained. Moreover, using BIM technology, it is possible to set up work remotely, considering a dispersed team. Therefore, enterprises possess a significant prospect of attracting highly skilled specialists to their teams, irrespective of their geographical location.

  • New procedures

    Incorporating BIM roles in the company, setting up a CDE, configuring the issuance of the model to the construction site, and digital document management linked to the model during the construction.

SIGNAX BIM software for mobile
Fig. 2 SIGNAX BIM software for mobile


  • Early Construction Cost Control.

    BIM allows developers to not only build the most daring architectural ideas, such as biometric structures with complicated facades and interiors or high-rise buildings, but also automatically calculate volumes in the model at an early stage, so they can find a more optimal solution.

  • Increased project and Construction Collaboration.

    It is already the norm for companies using BIM technology to hold general meetings with a demonstration of the model on a large screen. The majority of the challenging technical issues are eliminated by such working sessions before the project is officially launched for work. And builders are already beginning to appreciate the ease of reading design decisions thanks to 3D. Such a visual analysis of the model is possible using a tablet and Cloud-based Construction Software services that have all the necessary functions.

  • Improved decision-making in sustainable design and construction practices.

    Such issues as poor access to above-ceiling components and insufficient space to allow the full thickness of duct insulation can be eliminated using the existing collaboration functions in BIM software. And the issue of using outdated blueprints is not present when using a BIM model on a construction site.

    The use of space between building services (like plumbing and ventilation) and avoiding mistakes during construction is enhanced by automated checking collision clash detection (Fig. 3). Furthermore, virtual walk-throughs of a BIM model can help with the decision-making process of how to best use the space.

  • Reinforced construction and project management.

    Construction sites are an environment where multiple activities are occurring simultaneously, resulting in another huge problem - tasks that are out of order. Here, a BIM model can be employed to generate 4D simulations that depict the construction process of the building over a period of time. As a result, a smooth workflow and the avoidance of delays or accidents are ensured by properly managing the construction site logistics.

  • The foundation for Ongoing Facilities Management: Complete BIM models help manage buildings, making them much easier to renovate in the future.

    The challenge of improving and standardizing the quality of the information Facility Managers have to face is constantly faced. BIM is a digital repository for all building components, and as a full 3D model, it can show views with a clarity that users usually don't get from standard 2D building drawings.

Advanced clash Detection in SIGNAX Tools and Autodesk Navisworks
Advanced clash Detection in SIGNAX Tools and Autodesk Navisworks
Fig. 3 Advanced clash Detection in SIGNAX Tools and Autodesk Navisworks


The field of Building Information Modeling is regarded as one of the most promising advancements in the architecture, engineering, and construction (AEC) industries. The construction industry has now experienced the significant outcomes of this relatively new technology. Let us list the fundamental ones:

  • Reduces construction time and cost;
  • Enhanced quality of the project and an overall better build;
  • Preventing accidents on the construction site.

And that should be enough to understand that BIM approach is the point of no return, after which it is unlikely that anyone will return to 2D CAD. As is the case now, no one imagines the execution of drawings on a drawing board. Using BIM models for buildings and infrastructure is better than using traditional methods. This means there are fewer mistakes and rework, and it saves money and time.

To summarize, BIM is not only about software and 3D. It is also about the way of thinking, which saves time. Lost time is the most costly thing in construction. Among other products on the market, SIGNAX is designed to help you reduce the time needed to make the correct management decision. The construction industry will then be able to produce high-quality objects.

Completed BIM model is a digital repository
Fig 4. Completed BIM model is a digital repository.