Ordnung SIA 111 (2003) – Performance Model for Planning and Consulting
Ordnung SIA 111 (2003 edition), also registered as SN 508 111, is a performance model issued by the Swiss Society of Engineers and Architects (Schweizerischer Ingenieur- und Architektenverein). This regulation provides a structured framework for planning and consultancy services in Switzerland. It acts as a professional standard for coordinating the collaboration between clients and service providers, particularly for projects where the output is not a physical building but rather an analytical or strategic result.
The scope of SIA 111 covers diverse domains including Raumplanung (spatial planning), Verkehrsplanung (transport planning), environmental impact assessments, and safety planning. Unlike SIA 112, which is designed for physical construction projects, SIA 111 focuses on Vorabklärungen (preparatory clarifications), strategies, concepts, and the identification of risks and opportunities. The document establishes a lifecycle for these projects consisting of six distinct phases and twelve sub-phases, ranging from initial need formulation to final success monitoring.
This document integrates Allgemeine Vertragsbedingungen (General Contract Conditions) to regulate the legal relationship between parties. It defines the roles of the Beauftragter (service provider), the Gesamtleiter (project lead), and the Auftraggeber (client), ensuring that interdisciplinary tasks are handled through a target-oriented methodology.
Scope and Areas of Application
The performance model applies to projects where results are primarily non-physical. These include strategic developments and planning processes that steer future construction or environmental measures.
- Raumplanung: Spatial and development planning.
- Verkehrsplanung: Transport and traffic infrastructure strategy.
- Umweltverträglichkeit: Environmental impact assessments and remediation concepts for contaminated sites (Altlastensanierungen).
- Naturgefahren: Management of natural and civil hazards.
- Unternehmensberatung: Business and operational consultancy within the planning sector.
Project Phases and Sub-phases
SIA 111 structures the project lifecycle into six main phases, each containing specific sub-phases and defined objectives (Teilphasenziele).
- Phase 1: Vorbereitung (Preparation) – Includes sub-phase 11 for need formulation and project definition.
- Phase 2: Strategische Disposition – Involves analysis of current states, goal setting, and strategic approaches.
- Phase 3: Konzeption (Concept) – Development and selection of solution variants and detailed elaboration.
- Phase 4: Bewilligung (Approval) – Decision-making for implementation and formal permit procedures.
- Phase 5: Realisierung (Implementation) – Execution of the planned strategy or measure.
- Phase 6: Begleitung (Monitoring) – Success control and necessary adjustments.
Roles and Project Management
The regulation distinguishes between the tasks of the individual specialist and the Gesamtleitung (Overall Management). The lead manager is responsible for the administrative and technical direction of the consultant team.
- Gesamtleiter: Acts as the primary contact for the client and handles cross-phase services such as communication, coordination, and documentation.
- Beauftragte: Specialized professionals responsible for specific modules and technical inputs within the sub-phases.
- Frei einsetzbare Teilphasen: Flexible sub-phases for Auswahlverfahren (selection procedures) and Mitwirkungsverfahren (public participation procedures).
General Contract Conditions (AVB)
Section 3 of the document outlines the rights and duties of the contracting parties under Swiss law.
- Sorgfaltspflicht: The consultant must protect the client's interests and act according to recognized professional rules.
- Urheberrecht: Copyright remains with the consultant, while the client has the right to use results for the agreed purpose.
- Aufbewahrung: Documents must be archived in original or suitable form for ten years after project completion.
- Haftung: Liability for damages resulting from breach of duty, including non-compliance with deadlines.
Frequently Asked Questions
What is the difference between SIA 111 and SIA 112?
SIA 111 is used for planning and consultancy projects that do not primarily result in a physical building, such as strategies or environmental concepts, whereas SIA 112 is the standard for construction projects.
How many phases are defined in the SIA 111 performance model?
The model defines six main phases: Preparation, Strategic Disposition, Concept, Approval, Implementation, and Monitoring.
What are the ‘free’ sub-phases in SIA 111?
The model includes two freely insertable sub-phases: F1 for Selection Procedures (Auswahlverfahren) and F2 for Participation Procedures (Mitwirkungsverfahren).
Does SIA 111 cover spatial planning?
Yes, Raumplanung and Entwicklungsplanung are specifically listed as primary areas of application for this performance model.
Who is responsible for the overall project management according to SIA 111?
The Gesamtleiter is responsible for the coordination, communication with the client, and ensuring target achievement across all phases.
What is the retention period for project documents?
Consultants are required to keep project results and documents for ten years following the completion of the mandate.
How is the consultant's fee determined under this model?
Honoraria are based on the contractually agreed services and results, typically calculated using task-specific effort and operational cost assessments.
Does the client have the right to terminate the contract early?
Yes, early termination is regulated under the General Contract Conditions (AVB) based on the Schweizerisches Obligationenrecht (Swiss Code of Obligations).
