> For the complete documentation index, see [llms.txt](https://docs.dietrichs.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.dietrichs.com/dietrichs-intelligent-documentation/docs-de-en/design-program/modellbereiche.md).

# Model areas

In the building structure, all areas of a building and the Free Construction are combined in one model. Every component, for example the post of a wall, has all the possibilities of a component in Free Construction. Being able to do everything with every component is a major advantage; however, work is only efficient if the inputs are tailored to the specific situation of the component. Why should one enter three-dimensional coordinates for the post of a wall when a post always stands vertically in a wall and parallel to its outer surfaces; it is sufficient to enter only a longitudinal dimension in the wall. These special input options are summarized in the model areas.

In the current version, the following model areas are available:

**Floor plan**: For entering walls, windows, and doors in the floor plan.

**Wall construction**: Bars and panels can be entered into the walls. The layer contours of the walls can be adjusted.

**Slab field**: Slab planes can be defined in different storeys, optionally by adopting a floor plan contour, and assigned detailing

**Slab construction**: In slab fields, structural slab components and slab lining can be created and edited in detail

**Roof determination**: Here, a house outline can first be generated, optionally by adopting a floor plan, or by tabular or graphical input, and provided with roof attributes for automatic roof determination. For this purpose, profile values and slope changes can be assigned to each contour line.

Roof determination is then transferred automatically.

**Dormer**: In the model area 'Dormer', dormers are determined and the dormer supporting structure is entered. In addition, the main roof openings and dormer walls can be entered.

**Bar structure**: In bar structure, bar systems can be entered via vertical and, if necessary, also free planes. This model area is particularly suitable for trusses, brackets, posts under any timber, and similar elements.

**Free construction**: DICAM: Creation of new components or further processing of components that were created in the other model areas. Particularly flexible input is possible here.

Each building is reopened in the model area that was last edited in that building. If a new building is created, you automatically enter the model area Floor Plan. We assume that the vast majority of buildings have at least one floor plan, and that input begins with this.

You switch between the model areas using the functions in the menu 'File Operations - Model Area'.


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