Extensibility

Learn here about intrinsic capabilities to extend your applications in verticalization and customization scenarios.

Extensibility of CAP applications is greatly fueled by CDS Aspects, which allow to easily extend existing models with new fields, entities, relationships, or new or overridden annotations → Learn more about using CDS Aspects in the Domain Modeling guide.

As illustrated in the graphic above, different parties can build and deploy CDS Aspects-based extensions:

• Customizations – Customers/Subscribers of SaaS solutions need options to tailor these to their needs, again using CDS Aspects to add custom fields and entities.

• Toggled Features – SaaS providers can offer pre-built enhancement features, which can be switched on selectively per tenant using Feature Toggles, for example, specialization for selected industries.

• Composition – Finally, 3rd parties can provide pre-built extension packages for reuse, which customers can pick and compose into own solutions.

• Verticalization – 3rd parties can provide verticalized versions of a given base application, which they can in turn operate as verticalized SaaS apps.

The following guides give detailed information to each of these options.

Extend SaaS Apps

This guide explains how subscribers of SaaS applications can extend these on tenant level, thereby customizing them for their specific needs.

Feature Toggles

Toggled features are pre-built extensions built by the provider of a SaaS application, which can be switched on selectively per subscriber.

Reuse & Compose

Learn how to compose enhanced, verticalized solutions by reusing content from other projects, and adapt them to your needs by adding extensions or projections.