> Markdown version of [Business Logic](https://vaadin.com/docs/v24/building-apps/business-logic). Section index: [llms.txt](https://vaadin.com/docs/v24/building-apps/llms.txt)

# Business Logic

- [Add a Service](https://vaadin.com/docs/v24/building-apps/business-logic/add-service.md): Learn how to add an application service to a Vaadin application.