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Documentation > User Guide > EBX® Metadata Management > User Interface > Navigation pane > Technology
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# Create a system

## Overview

In the Technology group of the Main perspective, select Systems to access the system screen. A main page listing all existing systems displays.

If you click on Hierarchy view, you will see a few built-in systems needed for harvesting and provisioning features.

- TIBCO Data Virtualization

- IBM DB2 (several versions)

- HBase (several versions)

- HSQLDB

- Microsoft Excel

- Microsoft SQL Server (several versions)

- Oracle MySQL (several versions)

- Oracle Database (several versions)

- PostgreSQL (several versions)

These built-in systems cannot be deleted as are needed by harvesting & provisioning features. You are able to create other systems and system types, according to your needs.

## Create a new system

After clicking on the + icon in the top left corner, you have access to the creation screen. In this screen you have to fill system information.

## Create a new stack

A stack is a way to rationalize information system and technical architecture governance by associating different systems together in a structured manner and trying to limit the combinations between them.

In the EBX® Metadata Management application, a stack is defined as a system referencing another system.

To define a new Stack, create a new System using System type = Stack and fill the other System attributes.

Then you have two possibilities to define the stack components

- From the Stack itself, in the Stack components tab, associate the components (Systems) of this stack (for instance, a database + an application server and a web server, to define a web application stack)

- From each component, in the Stacks tab, associate this component to the wanted stack.

Documentation > User Guide > EBX® Metadata Management > User Interface > Navigation pane > Technology