About Fiori OVP

The overview page (OVP) is a data-driven SAP Fiori app type and floorplan that provides all the information a user needs in a single page, based on the user’s specific domain or role. It allows the user to focus on the most important tasks, and view, filter, and react to information quickly.

Each task or topic is represented by a card (or content container). The overview page acts as a UI framework for organizing multiple cards on a single page. The overview page is based on SAP Fiori elements technology, and uses annotated views of app data, meaning that the app content can be tailored to the domain or role. Different types of card allow you to visualize information in an attractive and efficient way.

from SAP
https://experience.sap.com/fiori-design-web/overview-page/

About Open UI5

What is Open UI5?

OpenUI5 is an open source JavaScript UI library, maintained by SAP and available under the Apache 2.0 license. OpenUI5 lets you build enterprise-ready web applications, responsive to all devices, running on almost any browser of your choice. It’s based on JavaScript, using JQuery as its foundation, and follows web standards. It eases your development with a client-side HTML5 rendering library including a rich set of controls, and supports data binding to different models (JSON, XML and OData).

from: http://openui5.org/