# Introduction

In NeqModPlus, Simulation models will be developed using INSEL. These models shall be integrated in the Simulation Workflow SimStadt as a Workflow step. A Workflow step can be deployed as part of the SimStadt desktop workflow as well as a (Micro) Web Service. To ensure that the Workflow step is doing exactly the same in both cases, a single code base is required. 
This document proposes a general conceptual approach to integrate INSEL models developed in NeqModPlus as a workflow step in SimStadt and gives some guidelines to implement this integration. In addition, some extension will be proposed to simplify the integration in future.
