You must create a data system before working with any other objects because a data system is the owner of components in a data lake, including infrastructure objects, readers, parsers, lookups, pipelines, and writers.
A data system is a concept only in Calabash. It has no counterparts in any cloud platform. In other words, it is an organizer of objects in Calabash.
Here is how to create a data system.
- Log in to the Calabash GUI.
- Click on “Home” in the upper left corner.
- Click on the big green button for “Create Data System.”
See the following screenshot for an example.
![](https://datacanals.com/wp-content/uploads/2021/08/558x455-tutorial-datasystem-1024x835.webp)
For the time being, the only supported platform is GCP. So your primary task is to come up with a good name for your data system. In this tutorial, we are about to build a data lake for the finance department. Therefore, we name it “lake_finance.”
Click on “Save” to commit the data system to the Calabash repository.