Hello Praveen,

Here are some articles you can read with more information : 

Application composition

Hope it helps!

Paulo Rosário

Hello,
An OutSystems application is an assembly of modules (*eSpaces *and Extensions), defined in Service Studio. An application constitutes the minimum deployment unit among environments in LifeTime. 

You can read more about it in the Article share by @Paulo 
Moreover These are Entities Available in System Module , It can help us to fetch all details regarding espace.

You can take dependencies of them and you can explore them

Hope this helps

Thanks

Hi,

Kindly Check following links :

https://success.outsystems.com/Documentation/How-to_Guides/Data/Data_migration_from_production_to_non-production_environment/Factory_Application_Modules

https://www.outsystems.com/forums/discussion/55327/get-application-name-from-espace-id-on-the-database/?utm_source=service-studio&utm_medium=ost-outsystems-tools&searchId=a87eff55-6384-446e-8a72-90c9a7bcaba4

https://www.outsystems.com/forums/discussion/68838/how-to-fully-recover-a-deleted-espace/?utm_source=service-studio&utm_medium=ost-outsystems-tools&searchId=a87eff55-6384-446e-8a72-90c9a7bcaba4

Regards

eSpace in OutSystems refers to a module where you develop your application. It is the basic building block of an OutSystems app, containing UI, logic, processes, and data models.

Key Features of an eSpace:

1. UI Development – Create screens and layouts for web and mobile applications.
2. Logic Implementation – Define business rules, workflows, and server-side actions.
3. Database Handling – Design entities and manage data models.
4. Integrations – Connect with APIs, databases, and external systems.
5. Reusable Components – Share common functionalities across multiple applications.

How It Works:

• Each eSpace has its own set of modules but can reference other eSpaces.
• Multiple developers can work on different eSpaces within a project.
• Applications usually consist of multiple eSpaces to maintain modularity.

In short, an eSpace is like a project file where you design and develop an OutSystems application.