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SES 2: Extension Scenarios with SAP HANA Cloud Platform

Some of the principle that SAP follows for every SAP HCP extension integration project, are:

  • Zero integration costs for running SAP HCP applications next to an existing SAP Cloud Solution.
  • One unified experience for SAP partners creating extensions for SAP cloud products – development process, onboarding, operations and support.
  • One unified experience for SAP customers leveraging and managing extensions – tightly integrated administration experience, optional trials and embedded extensions.

Need for Software-as-a-Solution Extension

The major difference between the Software-as-a-Service (SaaS) world and the on-premise world is that in on-premise, IT is fully in control with plan process updates and execution of new ideas and requirements. They can directly influence each layer in the model, though the business objects model, network, system setup and UI-level customizations.

SaaS solutions emphasize the fact that there is ‘one code line’ and continuous flow of innovation with frequent release cycles. Introducing customer-specific features in the main code line is practically not possible in economically efficient way. Since in this case, the product is provided by the vendor, corporate IT teams have no longer control on any layer.

Today, transition to cloud and SaaS is an unstoppable trend. In order to address the loss-of-control issue associated with the transition to cloud solutions, SAP is on a journey to gear-up corporate teams with required tools to keep providing high-quality services to business stakeholders.

HTML5 vs. Java Application on SAP HCP

With the popularity of HTML5/JavaScript framework, it becomes tempting to implement scenarios in HTML5 and move forward with it. The big drawback here is the security. You need to keep in mind that your HTML5 and JavaScript code executes in a browser, which is prone to being compromised. You should implement business data in these cases only:

  • All data manipulation operations are available as backend service APIs which enforce adequate authorization and checks.
  • All of backend systems use one user base and have SSO configured to a common identity provider.
  • You have to manage role assignments for your HTML5 app.

For any HTML5 application, SAP recommends describing backend service API endpoints in the neo-app.json application descriptor, which will result in endpoints being proxied in SAP HANA Cloud Platform. Therefore, it is sometimes required to mitigate Cross Origin Resource Sharing (CORS) in browser, to prevent JavaScript code from loading content from multiple domains that the user has not explicitly interacted with before.

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