Business logic

docs/latest/advanced/architecture.md

@@ -5,6 +5,22 @@
 The [`OHIF/Viewers`](https://github.com/OHIF/Viewers/tree/react) repository contains the source code for the OHIF Medical Imaging Viewer. It is effectively a React [progressive web app](https://developers.google.com/web/progressive-web-apps/) (PWA) that combines the business logic housed in [`OHIF/ohif-core`](https://github.com/OHIF/ohif-core) and the components in our React Component library [`OHIF/react-viewerbase`](https://github.com/OHIF/react-viewerbase). It provides customization for common use cases through [configuration](../essentials/configuration.md) and for adding functionality via [extensions](./extensions.md).
 
 The purpose of this documentation is to better illustrate how these pieces work together to create a Viewer and where you should direct your attention for contributions.
+
+### Business Logic
+
+Our goal is to maintain the majority of our business logic in [`OHIF/ohif-core`](https://github.com/OHIF/ohif-core). `ohif-core` offers pre-packaged solutions for features common to Web-based medical imaging viewers. For example:
+
+- Hotkeys
+- DICOM Web
+- Hanging Protocols
+- Managing a study's measurements
+- Managing a study's DICOM metadata
+- A flexible pattern for extensions
+- [And many others](https://github.com/OHIF/ohif-core/blob/master/src/index.js#L49-L69)
+
+It does this while remaining decoupled from any particular view library or
+rendering logic. While we use it to power our React Viewer, it can be used with Vue, React, Vanilla JS, or any number of other frameworks.
+
 ![Architecture Diagram](../assets/img/architecture-diagram.png)
 
 <center><i>architecture diagram</i></center>