Workflow Engine .NET C# Overview
https://workflowengine.io
WorkflowEngine.NET - component that adds workflow in your application. It can be fully integrated into your application, or be in the form of a specific service (such as a web service).
The benefits of using WorkflowEngine.NET:
Designer of process scheme in web-browser (HTML5)
High performance
Quick adding to your project workflow
Autogenerate incoming list
Change the scheme process in real-time
Database providers: MS SQL Server, MongoDB, RavenDB, Oracle, MySQL, PostgreSQL.