> For the complete documentation index, see [llms.txt](https://community-test.logicnets.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://community-test.logicnets.com/release-9/platform-documentation/advanced-topics/system-integration/system-integration-with-web-applications.md).

# System Integration with Web Applications

## Description

LogicNets allows you to integration your LogicNets-based application with external Web applications.

### Options Available

| Option                                                                 | User experience                       | Level of complexity                                                           | Level of security |
| ---------------------------------------------------------------------- | ------------------------------------- | ----------------------------------------------------------------------------- | ----------------- |
| Open external app in another browser tab                               | User must switch between browser tabs | <p>Easy<br>Just launch the external application</p>                           | Secure            |
| Open in same tab - re-direct and provide                               | User stays on the same browser tab    | Moderate; might require adaption of external application to accept a back-URL | Secure            |
| Embed external app in an iframe panel within the logicnets application | Seamless                              | Complex                                                                       | Insecure          |

WARNING: LogicNets does not recommend the use of iframes in general, as iframes are considered as unsafe and therefore it the use of it may potentially lead to integration issues, security breaches and forced changes to external applications.

### Data Exchange

| Option                                                                                               | Direction                          | Level of security    |
| ---------------------------------------------------------------------------------------------------- | ---------------------------------- | -------------------- |
| <p>Include context information in Query parameters<br><em>Note: content-length restrictions</em></p> | LogicNets >> Ext. application      | Insecure             |
| Window\.PostMessage()                                                                                | LogicNets << - >> Ext. application | Somewhat more secure |
| Postback URL                                                                                         | LogicNets << - >> Ext. application | Secure               |


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