Project management ABC: S for SIA

Swiss precision in project management: The SIA method for successful construction projects

What is SIA?

The abbreviation SIA stands for the “Swiss Society of Engineers and Architects”, whose standards provide a structured framework for the planning and implementation of construction projects. They divide the entire life cycle of a building into clearly defined phases, from the initial idea to the management of the finished building. This approach ensures transparent communication between all parties involved and efficient project management. The standards not only ensure the quality and safety of construction projects, but also focus on sustainability and environmental compatibility.
The SIA standards are not only mandatory in Switzerland. They are also held in high regard internationally and often serve as guidelines for civil engineers and architects worldwide.

The SIA phases

The SIA phases divide construction projects into work phases and thus help to systematically structure and manage these projects. There are basically six SIA phases, which in turn can be divided into 12 sub-phases.

The six SIA phases

1. strategic planning: In this initial phase, the foundations for the project are laid. Needs are formulated in which the client’s requirements, goals and wishes are recorded. Solution strategies are then developed to meet these needs in the best possible way.

2. preliminary studies: The project is now being fleshed out. Various solution variants are developed and evaluated in terms of their feasibility, economic viability and environmental compatibility. The aim is to select the best approach and create a solid decision-making basis for further planning.

3. project planning: This is followed by the detailed elaboration, planning and conception of the selected project. Precise plans and technical specifications are drawn up for both the architectural and technical aspects of the project. This phase is divided into three important sub-phases:

• Preliminary project: Preparation of a rough draft with initial cost estimates.
• Construction project: Detailed planning with precise cost calculations and schedules.
• Authorization procedure: Obtaining all necessary permits and approvals from authorities.

4th call for tenders: In this phase, the services to be provided by external companies are put out to tender. The necessary materials must also be procured in this phase. To this end, offers are obtained, reviewed and contracts are concluded with the selected companies. Careful tendering is crucial in order to obtain high-quality services at fair prices.

5. realization: This is followed by the implementation phase, in which the construction project is realized. It includes construction management, supervision of the construction work, quality control and cost management. Close cooperation between all parties involved is essential here in order to complete the construction on time and within budget.

6. management: Once the construction work has been completed, the utilization phase of the building begins. This phase includes the commissioning, maintenance and long-term operation of the building. The aim is to maintain the value and functionality of the building over its entire service life.

Advantages of phase control according to SIA

The application of the SIA standards offers numerous advantages:

• Clear structure: The project process is made transparent and comprehensible by dividing it into defined phases.
• Efficient communication: Everyone involved knows at all times what phase the project is in and what tasks are pending.
• Quality assurance: Standardized processes and clear responsibilities ensure the quality of the construction project.
• Cost control: Early cost estimates and continuous cost management help to avoid budget overruns.

Challenges during implementation

Despite the many advantages, there are also challenges when applying the SIA phases:

• Complexity: Detailed planning and documentation require a great deal of effort and specialist knowledge.
• Flexibility: Unforeseen changes can disrupt the established process and require adjustments to the ongoing process.
• Resource management: Precise planning of the resources required in each phase is essential to avoid bottlenecks.

Conclusion

The SIA standards represent a clear and proven standard for the phased management of construction projects. Their structured approach enables transparent planning and implementation that covers the entire project life cycle. By precisely defining phases and responsibilities, costs, time and resources are managed efficiently, significantly reducing the risk of delays and budget overruns. Particularly in complex construction and engineering projects, the SIA provides valuable guidance and ensures that everyone involved is working towards a common objective.

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