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Project 675

This project presents a comprehensive demonstration of cloud computing utilizing Google App Engine (GAE) and its integrated data store technology. It employs the Model-View-Presenter (MVP) architecture for efficient backend communication and collaborative development using Mercurial. The application allows for functional testing with Selenium IDE, ensuring high-quality user interactions. A live demo can be accessed at http://pyagenda21.appspot.com/demo. This project exemplifies the advantages of cloud solutions for data management in a collaborative environment.

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Project 675

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  1. Project 675 Natal Venetz Johannes Krampf Christian Gapany Bao Long Ngo Vuong

  2. Summary • Demonstration • Cloud computing, GAE • Data store • Architecture • MVP • Backend communication • Collaborative development • OpenID • Testing with Selenium IDE

  3. Frontenddemonstration : • http://pyagenda21.appspot.com/

  4. Cloud computing, Google AppEngine (GAE)

  5. Cloud computing, Google AppEngine (GAE)

  6. Cloud computing, Google AppEngine (GAE)

  7. Cloud computing, Google AppEngine (GAE)

  8. Data store

  9. Data store • SELECT * FROM usr WHERE id > 500 ORDER BY id; Id = 385 Id = 501 Id = 445 Id = 250 Id = 525 Id = 385 Id = 612 Id = 185 Id = 112

  10. Data store • SELECT * FROM usr WHERE id > 500 ORDER BY id; Id = 385 Id = 501 Id = 445 Id = 250 Id = 525 Id = 385 Id = 612 Id = 185 Id = 112 Id = 501 Id = 525 Id = 612

  11. Data store • SELECT * FROM usr WHERE id > 500 ORDER BY id; Id = 385 Id = 501 Id = 445 Id = 250 Id = 612 Id = 385 Id = 525 Id = 185 Id = 112 Id = 501 Id = 612 Id = 525 Id = 501 Id = 525 Id = 612

  12. Architecture M M V P

  13. Backend communication • Live demo: http://pyagenda21.appspot.com/demo

  14. Model – View – Presenter (MVP) V Pass the call P User interaction Updates Fireevents Manipulates M

  15. Advantages V M

  16. Advantages V FLOW P M

  17. Collaborative developement : Mercurial • Like SVN but muchbetter! • About 425 commits, 120 merges and only 2 manualmerges

  18. Central repository Server Local repository Desktop Working directory Natal Bao Johannes

  19. Central repository Server Working directory Desktop Natal Bao Johannes

  20. Testing with Selenium IDE • Selenium IDE = Firefox extension • Functional tests • Save tests in HTML, Java scripts, Python scripts…

  21. OpenID Provider ID 1) 5) 6) 2) 3) 4) 7) Websites which need ID services User 8)

  22. Questions

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