---
summary: 'The mental model behind ScaiLine: architecture, attributes, templates and
  rules.'
order: 4
title: Concepts
path: concepts
status: published
---

# Concepts

The pages in this section explain how ScaiLine thinks, so the console and the mail flow make
sense rather than needing to be memorised.

* [Architecture](concepts/architecture): the principles every design decision traces back to,
  the components and what runs where.
* [Attributes](concepts/attributes): where signature data comes from, how sources are ordered and
  how the console shows where a value came from.
* [Templates](concepts/templates): the designer, conditional blocks, variants and images inside
  the message.
* [Rules](concepts/rules): which template a sender gets, for which recipients and when.