# Cheat sheets

### What's a cheat sheet?&#x20;

Our cheat sheets provide an overview of the most important system families, with a brief description and necessary classification according to [Bygningsdeltabell](https://a-lab-1.gitbook.io/a-lab-digital-manual/definitions/bygningsdeltabell). They also explain what these families can be used for according to the [BEP](https://a-lab-1.gitbook.io/a-lab-digital-manual/definitions/bep), what properties are required according to the [MMI](https://a-lab-1.gitbook.io/a-lab-digital-manual/bim-gjennomforingsplan/mmi), and provide a few examples of the corresponding [LOIN](https://a-lab-1.gitbook.io/a-lab-digital-manual/definitions/lod-and-loin). Additionally, they include a few best practice tips.

The structure of the cheat sheets is always the same, but the amount of information may vary.

<figure><img src="https://4229861674-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2F-MJXJWi-MF8V2GeaFsM-%2Fuploads%2FIV71P4eFTAPFjIwhspzc%2FCheatSheet.jpg?alt=media&#x26;token=a26a3776-1032-4c3f-b9f5-7efb4e0de428" alt=""><figcaption><p>cheat sheet template</p></figcaption></figure>
