Technology

AvantGo Technology

AvantGo features a unique, patented architecture that delivers unparalleled scalability, reliability, and development flexibility to marketing and media clients. The service's architecture enables seamless connectivity between wireless and sync modes, as well as support for the widest range of mobile devices on the market. The Dynamic Mobility Model encompasses three aspects:

  • Multi-mode capability - AvantGo subscribers can access the service by syncing their device via their notebook or desktop computer, then viewing the content in "offline" mode, or by connecting to a wireless or Wi-Fi network to "surf" content and applications in real-time. Both modes enable users to receive content that AvantGo downloads to them - either via sync or real-time, wireless connections. Each of AvantGo's connectivity modes provide distinct advantages:

    • Sync: When users view synced content, they benefit from fast response times, reliable access to data (no drop-offs), easy access from any location (even from areas without wireless service), and no air-time fees.

    • Wireless: Wireless connectivity gives users real-time information updates and transactions, and they can issue ad-hoc queries to websites and web-based applications. Support includes 802.11b Wi-Fi and Bluetooth connection modes, as well as cellular networks.

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  • Cross-platform performance - Only AvantGo enables marketing and media organizations to develop mobile web content once, then deploy that content to multiple devices simultaneously. AvantGo supports all of the major industry platforms and networks, including:

    • Platforms: Microsoft Pocket PC, Palm OS (Sony and Palm), Symbian

    • Networks: CDMA, GSM, CDPD, GPRS, 3G

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  • Open Standards Support - The AvantGo service leverages open web industry standards in its design and interfaces, so marketing and media clients can maximize the value of their web investments by leveraging standard web tools to create and deploy mobile websites. AvantGo's open standards support includes:

    • On-device dynamic presentation - AvantGo's latest browser* includes support for DHTML, HTML 4.01, XHTML 1.0 and CSS 1.0 Style Attribute for user interface components

    • On-device data - Includes support for XML data synchronization to device plus cross-platform JavaScript API

    • On-device logic - Includes support for JavaScript and Document Object Model (DOM) to control presentation and access to data

    • Security standards, including support for end-to-end SSL

    • *Some earlier versions of the AvantGo browser support HTML 3.2 only.

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Scalable Infrastructure

The AvantGo mobile internet service supports more than one million device syncs to its active user base per day. This infrastructure scalability ensures that the service can deliver marketing and media channels, banner ads and promotions, and splash pages reliably and with high performance page views.

AvantGo leverages a distributed computing model to service its fast-growing user community. As the user community grows and the number of simultaneous synchronizations increases, the AvantGo server software can be distributed onto multiple machines. The primary server uses the HTTP protocol to communicate between its own internal Sync Server, UI Server, and database, with the entire software system run through a load balancer for greater efficiency. In addition, automatic rollover and failover processes ensure data and application integrity, regardless of how many users and devices access the service simultaneously.

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