> For the complete documentation index, see [llms.txt](https://docs.appclay.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.appclay.com/product-configurator/glossary.md).

# Glossary

**Base price** - the minimal item price without any options selected\
**Published** - product or option set is visible to your customers\
**Product image** - [*Read image guide*](https://docs.appclay.com/product-configurator/image-guide)\
**Scene** - [*Read image guide*](https://docs.appclay.com/product-configurator/image-guide)\
**Option set** - see image below

![](/files/-LlWE5t-Cj43T9iLdeD6)

**Option** - see image below

![](/files/-LlWEGv1ttNwGPgDjZKv)

**Z-Index** - [*Read z-index guide*](https://docs.appclay.com/product-configurator/z-index-sorting)\
**Multiple selections** - multiple options can be selected in this option set\
**Mandatory** -  at least one option must be selected in this option set\
**Selected by default** - this option will be selected by default\
**Thumbnail image** - [*Read image guide*](https://docs.appclay.com/product-configurator/image-guide)\
**Layer image** - [*Read image guide*](https://docs.appclay.com/product-configurator/image-guide)