Microsoft Architect Council Mobile Applications

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    Microsoft Architect Council Mobile Applications - Presentation Transcript

    1. Mobile applications for your customers
    2. Case study: Brussels community website
      • Customer
        • Brussels hoofdstedelijk gewest
        • CIBG (central IT department of Brussels)
      • Goals
        • Reinforce economy by creating a digital local community
        • Monetise services / platform (in the long term)
      • Must-have features
        • Works offline: permanent presence on the user’s phone
        • Automatic update of content through web services
        • Easy distribution (SMS “MyService” to 3236)
        • Website integration
        • Works on 80% of mobile phones
      www.citylive.be
    3. Functionality: online city community www.citylive.be
    4.  
    5.  
    6.  
    7. Solution architecture: Citylive Community Services Platform
      • Functionality
        • Service creation
        • Service delivery
        • Service management
      • Technical
        • SOA architecture
        • SQL server 2000 DB
        • MS .NET 3.0 framework backend / ASP.NET frontend
        • Web services (JSON, REST, SOAP) through WCF
        • Session management and telco service integration through Microsoft Connected Services Framework 3.0
      www.citylive.be
    8. Solution hardwarde
      • Hosting:Kangaroot datacenter with Global Crossings, Tiscali and FreeBIX 1GB connections
      • Servers: HP cluster with SAN as virtual server host
      • Mobile phones: everything that runs Windows Mobile or Java J2ME
      www.citylive.be
    9. Solution software: Hydra
      • Functionality:
        • Collection of enabling services out-of-the-box
        • Central & secure repository for profile and application data
        • Provides abstraction layer for applications & websites using simple API’s
        • Controlled environment handling privacy/authentication/authorization
      • AD based authentication of services (internal or external)
      • Impersonation for non-authenticated service consumers
      • Authorisation: own service or CSF
      www.citylive.be
    10. Solution software: Application creation www.citylive.be
    11. Solution software: Mobile Widget engines
      • Reference implementation on .NET Compact Framework
      • After validation, porting to J2ME, Javascript, Flash
      • Symbian: tried, but too fragmented / difficult process / weird architecture
      www.citylive.be
    12. Operation / system management
      • Service Operator : Has a web-based management interface
      • Widget authors : publish their apps and remain responsible (are supported through separate glowe.org website and can come to information sessions)
      • Community members : can transfer ownership of data entities in the system to each other. Escalation process with manual intervention if no agreement
      • Users : select their own content & widgets, create their own accounts, distribution by SMS and self-installation
      • Technical operations : regular process monitoring / server monitoring with MOM, regular DB and software maintenance schedules
      www.citylive.be
    13. Development cycle for mobile
      • Starts on PC
        • prototyping in .NET on desktop before implementing in .NET CF (is one of the bis advantaged of Windows Mobile)
      • Methodology: Scrum++
        • agility linked with the room to breath for some innovation
      • Tools: Microsoft toolchain
        • Visual studio, team server with sourcesafe, documentation on Sharepoint
    14. Challenges / lessons learned
      • Things to do
      • Make mock-ups FIRST
        • Mobile apps have no set expectation
        • You can’t predict what will work
        • Do extensive user testing
        • Be prepared to change your concept
        • Technical POC alone is not enough
      • Use the internet & its protocols
        • A mobile does not live in your network
        • VPN’s are a thing of the past
        • SOAP is nice when critical, XML is easier
        • Use the universal firewall bypass port (80)
      • Think Multi-platform
        • 1 platform only is not realistic
        • When you can: move up an abstraction layer or two (but web browser might be too thin)
      • Things to avoid
      • Stay out-of-control
        • With mobile, the user is in control
        • You can’t manage his device. Forget it.
        • Give users tools so they can DIY.
      • Avoid the bigger picture
        • Focus on a concrete function with an immediate value add for the user
        • Trying to change work processes, integrate with business intelligence, cover a larger scope: it will all fail
        • Mobile is new: create demand first
        • When it’s time for the bigger picture, current technology will be obsolete
      • Translate the web to mobile
        • In some cases, mobile websites are OK
        • But: don’t just convert existing web tools
        • Mobile has a different usage model then fixed (“browsing” is done on a desk)
      www.citylive.be
    15. Influence of future evolutions from MS
      • XAML : would make a great open cross-platform mobile abstraction layer (please)
      • SQL server compact : gets you there fast, but needs to open up to other platforms to be viable outside of corporate walls. (e.g. use XML schemes in WCF)
      • Popfly (mashup dev tool): will really take of if given some mobile service delivery blocks
      • DirectX : user input,video rendering,sound and 3D are big problems in mobile. MS has a nice architecture here
      • Directpush : Don’t keep the magic for Activesync, open up the API to ISV’s.
      www.citylive.be Whishlist of things Microsoft can do for the mobile application industry
    16. Stay in touch www.citylive.be blog.citylive.be www.citylive.be

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