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MobiLink synchronization is adaptable and flexible. The following are some of its key features:
Easy to get started Using the Create Synchronization Model Wizard, you can create synchronization applications quickly. The wizard can handle many difficult implementation details of complex synchronization systems. Sybase Central Model mode allows you to view a synchronization model offline, provides an easy interface for making changes, and has a deployment option for you to deploy the model to your consolidated database.
Monitoring and reporting MobiLink provides two mechanisms for monitoring your synchronizations: the MobiLink Monitor and statistical scripts.
Performance tuning There are several mechanisms for tuning MobiLink performance. For example, you can adjust the degree of contention, upload cache size, number of database connections, logging verbosity, or BLOB cache size.
Scalability MobiLink is an extremely scalable and robust synchronization platform. A single MobiLink server can handle thousands of simultaneous synchronizations, and multiple MobiLink servers can be run simultaneously using load balancing. The MobiLink server is multi-threaded and uses connection pooling with the consolidated database.
Security MobiLink provides extensive security options, including user authentication that can be integrated with your existing authentication, encryption, and transport-layer security that works by the exchange of secure certificates. MobiLink also provides FIPS-certified security options.
Data coordination MobiLink allows you to choose selected portions of the data for synchronization. MobiLink synchronization also allows you to resolve conflicts between changes made in different databases. The synchronization process is controlled by synchronization logic, which can be written as a SQL, Java, or .NET application. Each piece of logic is called a script. With scripts, for example, you can specify how uploaded data is applied to the consolidated database, specify what gets downloaded, and handle different schema and names between the consolidated and remote databases. Event-based scripting provides great flexibility in the design of the synchronization process, including such features as conflict resolution, error reporting, and user authentication.
Two-way synchronization Changes to a database can be made at any location.
Upload-only or download-only synchronization You can choose to perform only an upload or only a download, and doing a two-way synchronization.
File-based download Downloads can be distributed as files, enabling offline distribution of synchronization changes. This feature includes functionality to ensure that the correct data is applied.
Server-initiated synchronization You can initiate MobiLink synchronization from the consolidated database. This means you can push data updates to remote databases, and cause remote databases to upload data to the consolidated database. See MobiLink - Server-Initiated Synchronization.
Choice of network protocols Synchronization can occur over TCP/IP, HTTP, or HTTPS. Palm devices can synchronize through HotSync. Windows Mobile devices can synchronize using ActiveSync.
Session-based All changes can be uploaded in a single transaction and downloaded in a single transaction. At the end of each successful synchronization, the consolidated and remote databases are consistent. (If you want to preserve the order of transactions, you can also choose to have each transaction on the remote database uploaded as a separate transaction.)
Either a whole transaction is synchronized, or none of it is synchronized. This ensures transactional integrity for each database.
Data consistency MobiLink operates using a loose consistency policy. All changes are synchronized with each site over time in a consistent manner, but different sites may have different copies of data at any instant.
Wide variety of hardware and software platforms A variety of widely-used database management systems can be used as a MobiLink consolidated database, or you can define synchronization to an arbitrary data source using the MobiLink server API. Remote databases can be SQL Anywhere or UltraLite. The MobiLink server runs on Windows, Unix, Linux, and Mac OS X. SQL Anywhere runs on Windows, Windows Mobile, or Unix, Linux, and Mac OS X. UltraLite runs on Palm or Windows Mobile. See Supported platforms.
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