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MCDM State Management


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MCDM State Management

  1. 1. An Introduction to STATE MANAGEMENT/COOKIES by Elise Chisholm May 12, 2010
  2. 2. STATE MANAGEMENT What is it? State management technology allows websites to identify you, maintain information about you, and even track your online movements.
  3. 3. STATE MANAGEMENT Before state management, the web was like a vending machine. It had little regard for your identity, what products you want, and how many purchases you’ve made. You couldn’t buy multiple products at one time, and there was no “oneclick” feature to remember your personal information. There are two types of state management: Server side Client side
  4. 4. STATE MANAGEMENT Client side – minimal security but faster performance Server side – higher security but can lead to scalability issues when information store is large Session state View state Query strings Database support Hidden fields Profile properties Control state Application state Cookies Server side Client side
  5. 5. COOKIES What are they? Cookies are small files that websites place on your browser. Information travels back and forth between your browser (Firefox, Internet Explorer, etc.) and the websites you’re visiting. They’re usually a combo of letters and numbers
  6. 6. COOKIES For example: If I visit Google for the first time, Google places a cookie on my browser. The next time I visit Google – seconds, days or weeks later – my browser sends Google that same cookie with a cookie ID number that allows Google to recognize my computer.
  7. 7. COOKIES Cookies enable websites to remember your login details every time you visit, and help online stores to keep track of which items you’ve added to your shopping cart. All search engines and most websites use cookies.
  8. 8. COOKIES Third party cookies serve up ads that are relevant to your interests, control the number of times you see an ad, and measure the effectiveness of ad campaigns. There are two types of cookies: first party cookies and third party cookies. Travel back and forth between your browser and the website of a company that’s displaying an ad on the site you’re visiting (usually an ad serving company) Travel back and forth between your browser and the website you’re visiting , allowing that website to store information about your preferences Third party cookies First party cookies
  9. 9. COOKIES <ul><li>Where did they come from? </li></ul><ul><li>1991 Tim Berners-Lee creates the first web browser </li></ul><ul><li>1994 Lou Montulli and Netscape’s New Enterprise Server Division develop cookies </li></ul><ul><li>1996 Cookies become public knowledge thanks to the Financial Times </li></ul><ul><li>1996 Netscape announces option for alerting users about cookies </li></ul>
  10. 10. PRIVACY Most of the time there’s no personally identifiable info in a cookie file (like name, email address, phone number). Cookies can’t be used to run programs on your computer, access info on your hard drive, or deliver viruses. Google has five privacy principles that describe how the company approaches privacy and user information.
  11. 11. PRIVACY You can control which cookies get sent to your browser. To refuse cookies on Firefox or Internet Explorer (if you’re on a PC), click on Tools, Options, Privacy, Show Cookies, Remove.
  12. 12. REFERENCES Information sources: Duffy, J. (2004, September/October). State management. Component Developer Magazine . Retrieved May 2010 from =0409061 . Fink, G. (2008, June 30). ASP.NET client side state management. .NET Zone . Retrieved May 2010 from . Google (2010). Google privacy: a look at cookies. Retrieved May 2010 from . MSDN (2010). ASP.NET state management recommendations. Retrieved May 2010 from . Shah, R. & Kesan, J. (2009). Recipes for cookies: how institutions shape communication technology. New Media & Society . Retrieved May 2010 from .
  13. 13. REFERENCES Information sources (continued): Shillan, C. (2004, March). Deferred ASP.NET session state management. MSDN . Retrieved May 2010 from . Tech Republic (2003, March 12). Retrieved May 2010 from . Tech Republic (2003, March 19). Retrieved May 2010 from .
  14. 14. REFERENCES Images sources: (2010). Retrieved May 2010 from http:// / . Google (2010). Google privacy: a look at cookies. Retrieved May 2010 from . Google (2010). Retrieved May 2010 from . Mozilla Firefox (2010). Retrieved May 2010 from .
  15. 15. THANK YOU