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Developing Smart Client Applications For The Enterprise

Developing Smart Client Applications For The Enterprise. Keith Elder Team Leader / Sr. Software Engineer Quicken Loans Blog: http://keithelder.net/blog/ Email: keith@keithelder.net . About Quicken Loans. Originally founded in 1985 as Rock Financial by Dan Gilbert

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Developing Smart Client Applications For The Enterprise

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  1. Developing Smart Client Applications For The Enterprise Keith Elder Team Leader / Sr. Software Engineer Quicken Loans Blog: http://keithelder.net/blog/ Email: keith@keithelder.net

  2. About Quicken Loans • Originally founded in 1985 as Rock Financial by Dan Gilbert • Grew to one of the largest independent mortgage banks in the country • 1998 IPO • 1999 Launched Rockloans.Com • 1999 Intuit, Inc (makers of TurboTax and Quicken) purchased Rock Financial. • July 2002 Dan Gilbert purchased Quicken Loans back from Intuit. Retained Quicken Loans branding and marketing initiatives. • 4500 employees • Largest online retail home loan lender

  3. Take Aways • What is a Smart Client? • Why you should consider Smart Clients over Web Applications for internal use within the Enterprise. • How to deploy a Smart Client using ClickOnce. • How to provide your end users with automatic updates.

  4. Part 1: What is a Smart Client?

  5. Remember Mainframes? Single Architecture – Mainframes – Dumb Terminals

  6. Mid 80’s Personal Computers (dual tier) – Thick Clients Remember Thick Clients?

  7. Remember How The Web Solved Everything? Web Applications Solve Everything!

  8. Aren’t we really back to where we started?

  9. Smart Client Thick Client Heavy footprint Web services and offline/online support Rich User Experience Tough to deploy Web Application High developer productivity Broad reach Network dependency Easy change management “DLL Hell” Responsive UI Reduced User Experience Easy to deploy Device adaptability Complex to develop Smart Client

  10. Benefits Provides connection pooling to database Allows for updates to business layer without affecting clients Disconnected / Connected Smart Client Architecture SQL 2005 Business Logic Documentation Web Services Cluster Clients

  11. Disclaimer(s)! • Are Smart Clients just related to .Net? • No – Smart Clients can be built on top of any operating system • Ok fine but are Smart Clients a technology or an architecture? • Both! It is a combination. • SmartClientyourApp = .Net + SOA + Winforms + Windows • SmartClientyourApp = (Java or Python) + SOA + (GTK or QT) + *Nix

  12. Smart Client Benefits (1/2) • Local resources • Direct display and peripheral access • Responsive graphics, printers, digital camera’s, smart phones, pda, etc. • Use of installed applications • Word, Excel, VSTO • Connected • Access to network resources • Web services, SQL Databases • Less payload on server than web application • Minimal training

  13. Smart Client Benefits (2/2) • Offline capable • Cache online data • Update when connected • Datasets in smart documents • Intelligent deployment and update • Easy non-administrator deployment • Automatic updates • Rich / easy developer experience

  14. .Net Smart Client (what do you need to build one?) • Visual Studio 2005 • Download: http://msdn.microsoft.com/vstudio/express/ • Provides rich visual designer support • Integrated ClickOnce testing and deployment • Visual Studio Tools for Office • .NET Framework 2.0 or 3.0 • Windows Forms • ClickOnce deployment • Web server to deploy web services and ClickOnce deployment • Total Cost to Leverage This Technology: $4.95 / month hosting account • Visual Studio Express – Free • .NET Framework – Free • Web Server - $4.95 / month

  15. Smart Client (GUI) Intro to .Net 2.0 WinFormsand Sample Application - Enterprise Desktop (sorta)

  16. Part 2: Deploying a Smart Client with ClickOnce

  17. ClickOnce application deployment published on a web or file server Client follows link to serverhttp://localhost/app/EnterpriseDesktop.application Application deployed locally in user’s profile directory & executed Subsequent executions check for updates & execute local install ClickOnce Deployment Overview Server application files Client

  18. ClickOnce • Smart Client deployment technology • Provides web-deployment simplicity • End User • Provide web-deployment flexibility • Publisher • Automatic update of application • System.Deployment • Security isolation and optional restricted permissions • Non-administrative installs and uninstalls

  19. ClickOnce Deployment

  20. Application Updates • Auto-update deployment options • Before application launch, or • Update check occurs after app-launch • Scheduled update checks • Weekly, monthly, etc. • System.Deployment == Customize it to suit your business needs

  21. ClickOnce Auto-update(Versioning)

  22. Smart Client Summary • Rich features easier than ever to implement • Windows Forms 2.0 new controls • Windows Forms 2.0 improved data integration • Installation and update easier than ever • ClickOnce web-style simplicity • ClickOnce web-style security • SmartClient rich feature-set • Customers access existing and new application features easily • Customers access your application with or without network connectivity

  23. Resources • My Blog • http://keithelder.net/blog/ • Email • keith@keithelder.net • Resources • http://msdn.microsoft.com/smartclient/ • http://practices.gotdotnet.com/projects/scbat • Patterns and Practices • http://msdn.microsoft.com/practices/ • Smart Client Software Factory • Enterprise Library • Web Services Software Factory • Mobile Software Factory

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