Mobile Data Models

There are three ways to model enterprise data so that mobile applications can be developed to access data in your enterprise: Mobile Business Objects using the Sybase Mobile SDK, Data Objects using SAP Data Orchestration Engine (DOE), and OData using SAP® NetWeaver Gateway.

Based on the mobile application category that meets your user and data needs, and prior to defining your data models, identify the mobile application archetype you will use for development.

Category	Mobile Application Archetype	Data Model
Offline applications	Native Object API applications	Mobile Business Object or Data Orchestration Engine
Hybrid Apps	HTML5 / JS Hybrid apps	Mobile Business Object or OData
Online applications	OData SDK applications or REST API applications	OData or other business data model

Based on your data model and business logic, the EIS interface must be defined. This process eventually involves adapting existing services exposing data from the EIS. Your data models connect with your EIS using these data services.

Mobile Business Objects
Mobile Business Objects (MBOs) are developed to define the mobile data model to be used by Object API Applications and HTML5/JS Hybrid Apps. Developers build the data model using the Unwired WorkSpace graphical tools, which are provided with Sybase Mobile SDK. These tools simplify and abstract EIS connections, and provide a uniform view of transactional objects. MBOs are reusable, allowing you to leverage them across multiple mobile device types.
OData
The SAP NetWeaver Gateway exposes OData with extensions specific to SAP. Service documents, that describe service interaction and data, allow users to interact with the SAP application.
Data Orchestration Engine
When the back-end enterprise system includes the Data Orchestration Engine (DOE) component of SAP NetWeaver Mobile, DOE data objects define the mobile data model for Object API Applications. DOE consolidates data from diverse SAP back-end sources and distributes it to applications via Sybase Unwired Platform messaging.