The 5 BIM phases


Thanks for your comments on my last article „Can I organize the BIM process using the CPM method?“. I would like to go back to the phases. I’ve refined my graphics a bit.

You are right that my graphic is a simplified representation and that the individual phases and their transitions are somewhat more extensive. My aim was to demonstrate these phases in terms of project management and implementation in digital form.

The phases themselves have nothing to do with BIM. The work processes are lived normality. If we now represent these individual phases as digital, continuous processes, then we call the whole as Building Information Modeling. All data and information generated during the BIM process flow into the digital model of a building and structure and are then available to the respective persons at each phase of the BIM process. 30 years ago, I have already dealt with these questions, but only now do we have the most components that allow us a digital continuity. I consciously say „most“ because not only the introduction of BIM requires a continuous perfection of the companies but also a perfection of the digital tools. Both factors contribute to the perfection of the digital data package of a building. This is my goal and you should set it your goal.

Why did not I create a circular diagram in my diagram? The most commonly used diagrams in BIM are usually circular. A circle with arrow symbols represents a constant cycle and recurring process steps. However, the consistent representation of time as a continuous axis is missing. That is why I always choose a representation that includes the time. The time axis on my diagram is shown in light blue. It also symbolizes the development of a company that has several buildings. Each building has its own BIM process.



Phase 1 – Development – New construction

As soon as a company is considering whether to build a new building, the BIM process is already starting. Data and information are generated in digital form. From this digital package the planners later develop a digital model. At some stage, an internal process becomes an integral part of the company’s internal process. The development phase transitions into the planning phase in a smooth transition. The continuous exchange between developers and planners can therefore not be supported by the CPM method.

Phase 2 – Planning – New construction

The company has commissioned an external planning office, which in turn cooperates with different specialist planners. The digital building model is created and the data and information package is growing continuously. The consistent use of BIM ensures that the three-dimensional building model is completely finished down to the last detail before the construction phase begins. The complete digital package is then handed over to the construction company. This is a break with the practical practice that the entire construction industry must carry out.

Phase 3 – Construction – New construction

Additional data and information are added to the digital packet. The new building is finished. The digital package is up to date.

Phase 4 – Maintenance/Use – New construction

The transition to the utilization phase is again a little fluent. The BIM process goes back from external to internal. Thanks to the use of BIM, we have no construction defects that have resulted from planning errors. The number of supplements could be reduced to a minimum. The small number of construction marks is processed. The first reference, planned with the support of the digital model, will take place. Afterwards, the building has arrived in the company’s maintenance and use phase. The digital data packet is continually updated and supplemented. All smaller measures, e.g. The replacement of an automatic door, are carried out and also changed in the digital package.

Phase 5 – Demolition (or sale)

The transition between the maintenance/use phase and the demolition or sale is again fluid. The workforce is organized and the demolition or sale prepared. The complete digital package of the building will be handed over to the demolition company or the buyer. With a sale, a well-maintained digital data package will be reflected in the future. The buyer saves a corresponding development and planning effort. In the case of a sale, the BIM process of the building will continue in the company of the new owner. (You did not see this on the graphic.)



Now we come to the consideration of the phases, if the conversion or a large reconstruction of a building is pending. The BIM process supports, facilitates and accelerates the transitions between internal and external, external and internal as well as the planning phase itself.

Phase 1C – Development – Conversion

In the transition from the utilization phase to the planning phase, a development process also takes place in the company. The employee’s abstract is given its own transition phase, which ends with the start of the creation.

Note: At this time, the digital future of your company decides with regard to the digitization of buildings and real estate. If your building has already been created within the framework of a BIM model, then all parties will not discuss how the conversion is to be implemented. It is exciting with your buildings, which have not yet been created as part of a BIM process. This decision falls into the development phase during the first big conversion!

Phase 2C – Planning – Conversion

Planning is an external process and does not interfere with the company’s operation. Now at this stage of the BIM process, the well maintained and up-to-date digital data package proves to be a real gain and a time saving. Many previously necessary activities which have disturbed the operation of the company can now be dispensed with.

Phase 3C – Construction – Conversion

The construction phase includes a partial tear. (I have not shown this in the graphic.) Now the completely completed planning phase in the BIM process proves to be a real cost factor for the company. The biggest disturbing factor for the productivity of a company is the construction phase in the conversion. The shorter it is, the shorter is also the restlessness and disruption of the productivity of the company.

Phase 4C – Maintenance/Use – Conversion

In terms of content, there is nothing new about Phase 4.


The goal is to keep the digital data package up-to-date with the three-dimensional object and building data, with the information and documentation through all phases. This is a major challenge for all digital tools and / or software products used during the BIM process. There is no software producer who can offer us a complete continuity through all phases as an all-in-one feature. The number of solutions offered for the individual phases is large and unclear, as are the consultations offered.

Diversity is important and diversity is a major challenge for users in the company. I like to create the digital future of your company. I always accept inquiries.


Kommentar verfassen / Post a comment

Trage deine Daten unten ein oder klicke ein Icon um dich einzuloggen:

Du kommentierst mit Deinem Abmelden /  Ändern )

Google+ Foto

Du kommentierst mit Deinem Google+-Konto. Abmelden /  Ändern )


Du kommentierst mit Deinem Twitter-Konto. Abmelden /  Ändern )


Du kommentierst mit Deinem Facebook-Konto. Abmelden /  Ändern )

Verbinde mit %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.