Working in the SAP NetWeaver Java and Enterprise Portal areas, it seems to me the differentiation between the Portal offers in the context of the SAP HANA Cloud Framework is not made clear enough for customers.
The SAP Enterprise Portal from version 7.4 is the on-premise solution offer which supports the usage of SAP HANA as database. It can be run with other databases but it is going in the direction of being tightly integrated with SAP Cloud solutions.
More details are available in following SAP NetWeaver Portal 7.4 document: http://scn.sap.com/docs/DOC-49289
Advantages of this solution are developed in Yaviv blog: http://scn.sap.com/community/hana-cloud-portal/blog/2013/10/17/on-premises-managed-or-cloud--comparing-different-portal-deployment-options
• Full control over deployment (hardware / OS platform)
• Full flexibility for customization and extensions
• Individualized sizing
The SAP HANA Cloud Portal is the on-demand solution offer which is running in the SAP HANA Cloud Framework as the name indicates.
Advantages are:
• Lean, flexible Portal Paas (Platform as service)
• Fast time to value with regular updates
• Easy integration with on premise
• Lower TCO via scalable public cloud (Total cost of ownership)
• Standards based, open platform
Then, there is this question of integration of the SAP HANA Cloud Portal on demand with the on premise Portal solution. The FAQ from the SAP HANA Cloud Portal community network page gives some hints about how it can be achieved:
Is SAP HANA Cloud Portal a successor of SAP NetWeaver Portal 7.3x?
No, it is not a successor of Portal on-premise. The Cloud Portal can be an extension to Portal scenarios and can be integrated with your on-premise applications.
Will it be possible to migrate content from the classic SAP NetWeaver Portal to SAP HANA Cloud Portal?
Migration will not be possible since the two products are not directly related. However, cloud portal is designed to reuse content from SAP NetWeaver Portal.
If I run on-premise SAP solutions, how do I integrate with SAP HANA Cloud Portal?
The solution enables a secure and reliable integration with the customer's on-premise network for leveraging existing on-premise investments.
The Cloud Portal enables various methods of consuming On-Premise content:
(1) Consume EP 7.0/7.3 iViews and ABAP web application, assuming client has direct access to the web application.
(2) Consume data services based on SAP Cloud Connector (SCC).
SAP HANA Cloud Portal community network page: http://scn.sap.com/community/hana-cloud-portal