This newer model of making applications, is based on an open-source project called Cloud Foundry. The newer SAP CAP (Cloud Application Programming) model also uses MTA to deploy its applications. The SAP HANA XSA application, is also called a MTA application, which stands for, multi-target application. Not only does this provide us with a significant performance boost, but it also comes along with numerous other improvements, on the front of security and operations. This provides us with the ability to write our database and business logic on the SAP HANA database, itself.

More conceptual information about SAP HANA XSA programming model can be found in this document 6. SAP HANA XSA (Extended Services, Advanced) is the latest iteration of this concept. CDS views, AMDP and stored procedures, allow us to move much of the processing logic from ABAP or the application-side to the HANA database.Д«ut, wouldnвЂ™t it be even better, if we could build an application that was completely native to HANA, with no Netweaver AS? This is the exact idea behind SAP HANA XS, where a lightweight javascript runtime is embedded directly into the SAP HANA database. With all the speed and power of SAP HANA, it makes much more sense to do most of the processing in the HANA database itself, at the lowest level before passing data to the application-side processing logic. All of a sudden, the bottleneck has moved from the database-side to the application-side. We also know this as the SAP R3 architecture, where we divide things into the presentation layer, application layer and the database layer.ДЄll of this was fine, until the appearance of SAP HANA database, which provided us with a performance that was an order of magnitude better than its competitors. This approach provides us with ample amount of flexibility on the UI side, but for the backend, we are still dependent on ABAP and the NetWeaver application server, to execute the business and processing logic for us and the database server to perform queries and send data to the Netweaver AS. Newer alternatives now use Fiori-based UI, with an OData service from the backend, that transports data back and forth. However, that came with its own set of drawbacks. However, with the onset of the вЂњcloudвЂќ movement, SAP is providing its customers and developers, a completely new services-oriented application model, that leverages containers and the latest open source standards, for cloud-based applications.Дevelopers have been able to provide web-based SAP applications, through the use of WebDynpro for a long time.

Making applications for SAP in the past, has always been rooted in proprietary tools and frameworks.

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