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+# IBoM variants
+
+This is an analysis and test of the *variants* implementation of [IBoM](https://github.com/openscopeproject/InteractiveHtmlBom)
+
+## What goes inside the SCH
+
+- The field used for variants must be specified using `--variant-field`
+- The field can contain only one value. So you create some kind of component groups.
+
+## What goes outside the SCH
+
+- Two optional lists are passed to create the variant.
+- Components without a group are always included.
+- Whitelist: only the groups listed here are included.
+  - If this list is empty all groups are included, unless listed in the blacklist.
+- Blacklist: groups listed here are excluded.
+
+## Where is in the code?
+
+In core/ibom.py function skip_component.
+
+## Conclusion
+
+### Advantages
+
+- The `Config` field is simple.
+- You have "exclude from" and "include only" options.
+
+### Disadvantages
+
+- Critical part of the information is outside the project.
+
+
+
+
diff --git a/experiments/variants/KiBOM/README.md b/experiments/variants/KiBOM/README.md
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+# KiBOM variants
+
+This is an analysis and test of the *variants* implementation of [KiBOM](https://github.com/SchrodingersGat/KiBoM)
+
+## What goes inside the SCH
+
+- The variants are implemented using the `Config` field (the name can be configured).
+- By default a component is included in all variants.
+- You can exclude a component from one variant adding `-VARIANT_NAME` to the `Config`.
+  - If you want to exclude this component from more than one variant just add more `-VARIANT_NAME` entries. Comma separated.
+- If a component will be included **only** in one variant you can use `+VARIANT_NAME`.
+  - Again you can add more than one `+VARIANT_NAME` entry. So the component will be included only if generating one of the selected variants.
+
+## What goes outside the SCH
+
+- When you generate the BoM you can select one or more variants, again comma separated.
+- The `-VARIANT_NAME` and `+VARIANT_NAME` is tested using a list of all the indicated variants.
+- By default the list of variants is ['default']. So *default* is like a special variant.
+
+## Where is in the code?
+
+The Component.isFitted() method implements the functionality.
+
+## Conclusion
+
+### Advantages
+
+- Almost all the information is inside the project.
+- You have "exclude from" and "include only" options.
+
+### Disadvantages
+
+- The `Config` field could become large.
+
+
+
+