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    Extensibility

    Learn here about instrinsic 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 Modelling guide.

    extensibility.drawio

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

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

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

    • Customizations — Customers of SaaS solutions (i.e. subscribers of which) need options to tailor these to their needs, again using CDS Aspects to add custom fields and entities.

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

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