# WS-Fed Architecture

## Introduction

WS-Federation (Web Services Federation) is an Identity Federation specification

### Sign-On  


<div drawio-diagram="1828"><img src="https://bookstack.soffid.com/uploads/images/drawio/2023-09/drawing-5-1695822597.png" alt=""/></div>

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[*http://docs.oasis-open.org/wsfed/federation/v1.2/cd/ws-federation-1.2-spec-cd-01.html*](http://docs.oasis-open.org/wsfed/federation/v1.2/cd/ws-federation-1.2-spec-cd-01.html)