ArcReady - Scalable And Usable Web Applications

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Architecting for Scalable and Usable Web Applications
As Enterprises and Software Vendors start to develop more and more applications on the Internet there is an increasing importance to architect these applications for both growth and for the optimal user experience. Software + Services allows you to develop fantastic applications, but there are pitfalls with architecting the applications in the wrong way.

Our Central Region Architect Evangelists will lead us through two great discussions on scaling web applications and creating the best possible user experience.

Session 1: Architecting for Scalable Web Applications In this session we will explore the patterns that typical applications follow as their scalability needs grow due to increased demand. We will also discuss best practices from companies that have gone up the scalability curve like Amazon.com, MySpace and Flickr. We will discuss the common bottlenecks that prevent scalability as well as how to tackle tough issues like state management in a application that is scaled across servers and even data centers. We will also discuss the “scale later” philosophy and how it should be accompanied by a solid plan to scale your applications.

Session 2: Architecting for Usable Web Applications In this session we will discuss how to architect your application with the user in mind. We have more choices than ever before for developing applications (Traditional Web Apps, AJAX, RIA technologies like Flex and Microsoft Silverlight and even smart clients) and picking the technology is only part of the solution. The architecture of the application must be designed correctly to provide a pleasing user experience and (potentially) to add new and interesting clients in the future.

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  • ArcReady - Scalable And Usable Web Applications

    1. 1. ArcReady: Architecting for Scalable and Usable Web Applications
    2. 2. Agenda <ul><li>SESSION 1: Architecting for Scalable Web Applications </li></ul><ul><li>15 Min Break </li></ul><ul><li>SESSION 2: Architecting for Usable Web Applications </li></ul><ul><li>Evals & Raffle </li></ul>
    3. 3. SESSION 1: Architecting for Scalable Web Applications
    4. 4. So you have a scalability problem? Congratulations!
    5. 5. References <ul><li>“ Running a megasite on Microsoft Technologies” (MIX06) </li></ul><ul><li>“ Myspace.com: Megasite V2” (MIX07) </li></ul><ul><li>“ Amazon.com's Simple Storage Service, Elastic Compute Cloud, and Simple Queue Service” (SAF07) </li></ul><ul><li>“ Building Scalable Web Sites” Book by Cal Henderson – Flickr architect </li></ul>
    6. 6. Scalability <> Performance
    7. 7. Scalability is how your application behaves as the number of users increases
    8. 8. Performance is how your application behaves when there is just one user
    9. 9. Number of Requests Cost per Request
    10. 10. Load <> Stress
    11. 11. Load is how many simultaneous users your application can serve
    12. 12. Stress is how well your application behaves when resources become limited
    13. 13. Where are the scalability limits? Network Database Web server Code
    14. 14. Pattern: Nickel Defense
    15. 15. Pattern: Scale Up
    16. 16. CASE STUDY: Scaling up with IIS7 at Dell.com
    17. 17. <ul><li>Simplified server management </li></ul><ul><li>Fewer servers, reduced costs </li></ul><ul><li>Improved performance </li></ul><ul><li>Deploy Windows Server ® 2008 Enterprise operating system with Internet Information Services 7.0 </li></ul><ul><li>Implement fully automated server and application deployment </li></ul><ul><li>Simplify management of servers that run Dell.com </li></ul><ul><li>Reduce number of servers and rate of server growth </li></ul><ul><li>Improve site performance to maintain good user experience </li></ul>Dell simplifies server management, lowers costs, and increases Dell.com Performance “ Our vision for the Dell.com architecture absolutely requires the new features in Windows Server 2008, which is key to our ability to simplify our online commerce environment.” Ben May, Senior Systems Engineer, Dell
    18. 18. PATTERN: Scale Out
    19. 19. PATTERN: Specialize Web Services Image Server Web Application
    20. 20. PATTERN: Split the application msdn.microsoft.com technet.microsoft.com microsoft.com
    21. 21. PATTERN: Split the database 1 Reference Transaction
    22. 22. PATTERN: Split the database 2 Write Copy Read Copy Read Copy
    23. 23. PATTERN: Geo Distribution
    24. 24. PATTERN: Offload the work
    25. 25. Anti-patterns <ul><li>Spending all your time looking at the code </li></ul><ul><li>Caching everything (twice!) </li></ul><ul><li>Services calling services (especially across the network) </li></ul>
    26. 26. DEMO: Team System Load Testing
    27. 27. Discussion: “Scale Later”
    28. 28. BREAK: 15 Minutes
    29. 29. SESSION 2: Architecting for Usable Web Applications
    30. 30. PART 1: What’s the Secret Formula?
    31. 31. What’s your favorite application?
    32. 32. What application do you use the most ?
    33. 33. Effective Satisfying Efficient Useful Adaptive Reliable Cost-effective Desirable Usable
    34. 34. Experience Engineering User Needs Interaction Design Information Design Visual Design Experiences that create value! + + +
    35. 35. PART 2: What is our palette?
    36. 36. Application Archetypes Information / Reference E-Commerce Data Viewer/Editor Utility Entertainment Document Viewer/Editor
    37. 37. UX Continuum SharePoint ASP.NET+AJAX Gadgets RIAs Infopath OBA Winforms WPF XNA Ubiquity Richness Next Generation
    38. 38. SharePoint Sites
    39. 39. Standards Based Web Apps (ASP.NET + AJAX & Mashups)
    40. 40. Gadgets
    41. 41. Rich Internet Applications (Silverlight)
    42. 42. Infopath Forms
    43. 43. Office Business Applications
    44. 44. Standards Based Windows Applications (Winforms)
    45. 45. WPF Applications
    46. 46. XNA Applications
    47. 47. DEMO: UX IQ
    48. 48. PART 3: Best Practices
    49. 49. Form follows function
    50. 50. Create a set of design tenets
    51. 51. Use the appropriate level of fidelity
    52. 52. DEMO: ProtoXAML
    53. 53. Build with the customer and user’s input
    54. 54. Build for ease of use ..but don’t forget the power users 70 20 10
    55. 55. Plan for concurrency
    56. 56. Balance the computing load
    57. 57. Balance security with usability
    58. 58. Build for supportability & maintenance
    59. 59. What are some of your best practices?
    60. 60. © 2008 microsoft corporation. all rights reserved. this presentation is for informational purposes only. microsoft makes no warranties, express or implied, in this summary.

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