Short Answer
In vyzn, variants are technically versions of a model: you create them via the «+» icon, choosing between «Variante erstellen» (create variant, e.g. from a new IFC model) and «Variante duplizieren» (duplicate an existing variant), then adapt them. To compare them, you create a performance report in the building, select two to five variants and start the calculation. The finished report compares the variants across the key metrics – including a rating and a ranking.
When to Use This
Comparing variants is one of the core ideas of vyzn. Whenever you want to compare several states of your project – for example with different building elements, materials from the catalogue or configurations – you build variants for this purpose and compare them in a performance report.
Prerequisites
- An IFC model that you can upload, or an existing variant that you can copy.
- For the variant comparison in the performance report, you need at least two and at most five variants.
Step-by-Step Instructions
Part 1: Create variants
- Click the «+» icon and choose between «Variante erstellen» (create variant, e.g. by uploading a new IFC model) and «Variante duplizieren» (duplicate an existing variant as a copy). In vyzn, your variants are technically versions of a model.
- Adapt the new variant, for example with different building elements, materials from the catalogue or configurations.
- Repeat these steps until you have built up all the variants you want to compare.
Part 2: Compare variants
- In the building, open the menu item "Performance-Berichte" (performance reports).
- Click "Bericht erstellen" (create report), give the report a name and choose a phase (Wettbewerb/competition, Exploration, or Vertiefung/detailed design).
- Select the variants you want to compare – currently between two and a maximum of five.
- Start the calculation.
Expected Result
The finished report opens as a variant comparison. It compares the variants across the key metrics, including:
- Life cycle assessment/emissions (e.g. greenhouse gas emissions, embodied energy)
- Energy (heating demand, SIA 380/1)
- Costs
- Area and comfort metrics
The report does not just place the variants side by side – it also puts them into context: per section and overall with a rating and a ranking, with the best variant highlighted. You can download the report as a PDF, share it and recalculate it when your data changes.
Good to know: If you have a specific comparison workflow in mind, we are happy to look at it together on one of your projects and set up the first report with you.