L'organigramme fonctionnel : un outil indispensable

Methodology for Creating a Functional Organizational Chart
📌 The functional organizational chart is an essential tool for every designer, especially in the initial phase of a project, helping to overcome the "fear of the blank page."
📌 The methodology for creating the chart is divided into two axes comprising five distinct steps, applicable generally but specifically tailored here for designing a television set decor.
📌 The approach emphasizes that the organizational chart is a didactic process, meaning it is not fixed and will evolve throughout the design process, serving as a crucial base for reflection.

The Five Steps of Functional Organization
📌 Axis 1 (Organizational Phase): Involves identifying site constraints (Step 1) and then listing and organizing all necessary functions based on the program/brief (Step 2).
📌 Axis 2 (Zoning Phase): Focuses on allocating surfaces to functions (Step 3), inserting these functions into the physical space based on those allocated surfaces and constraints (Step 4), and finally establishing the functional relationships/connections between spaces (Step 5).
📌 Site constraints (Step 1) for architecture or interior design include factors like orientation (e.g., South/West exposure), as well as neighboring walls, existing utility passages (electrical, plumbing), and existing openings.

Function Allocation and Zoning
📌 Functions (Step 2) can be independent or grouped into broader entities (e.g., "Entertaining" encompassing reading, watching TV, or receiving guests), which then map to spatial zones (e.g., "Living Room").
📌 Surface allocation (Step 3) involves determining the required square footage for each function, often documented in a synthetical table for rationalization; for example, in housing, the Kitchen might require $8 \text{ m}^2$, while dining/entertaining functions might share $27 \text{ m}^2$ in the living area.
📌 A schematic trick for visualizing surface proportions (Step 3) involves drawing the total area as a simple rectangle (e.g., $20 \text{ m}^2$ as $4 \text{ m} \times 5 \text{ m}$) to quickly judge the proportional divisions before actual spatial layout.

Insertion and Relationship Establishment
📌 Inserting functions into space (Step 4) means physically placing the determined surface areas within the project's physical limits and constants (constraints) at a proportional scale, eventually progressing toward a normalized scale like $1/100$ or $1/50$.
📌 Establishing functional relationships (Step 5) materializes the necessary connections and circulations between the zones (e.g., the path an invited guest takes from the guest table to the stage area in a TV set), which directly informs the layout strategies.

Key Points & Insights
➡️ Methodology is key to speed and efficiency in design; adopting a structured method like this five-step process is highly recommended at the start of any project.
➡️ The organizational chart serves as a dynamic base document for synthesizing the client's program and integrating it into a spatial organization, helping to manage complexity early on.
➡️ Always account for site factors (orientation, neighboring structures, utilities) in Step 1, as these impose necessary constraints on the final spatial arrangement.
➡️ Use tables to synthesize surface attribution in Step 3; this rationalizes the thought process and clearly defines the scale relationships between functions.

📸 Video summarized with SummaryTube.com on Feb 22, 2026, 09:58 UTC