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Uploaded byRichard Peter Ong
Web Applications - Behind the Scenes + Open Source Examples
The document discusses the basics of web applications including common types like content management systems, e-commerce sites, and forums. It explains the differences between web and desktop applications and covers the basic components and workflow of a web application from the browser to the server. Examples of open source web applications are provided for different types like Mambo CMS, OSCommerce, SugarCRM, and PunBB.
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Web Applications - Behind the Scenes + Open Source Examples
- 1. Web Application behind the scenes Arpee Ong
- 2. Who Am I?Name: Richard Pet er Ong a.k.a. Arpee Work: Lead Software Developer, Internal Projects @ SysIQ Inc. USA Other Affiliations: Core Developer of Mambo CMS, MiaCMS and CamiroCMS Member, PHP User Group Philippines IT Consultant @ LevitanSoftware, Kalibo, PH
- 3. Who Are you?IT Students / Faculty Future Web Application Developers
- 4. Scope and Coverage:Basic Web Application Workflow Examples Components, what makes Web Applications tick Sample on the spot codes using PHP
- 5. WHAT IS AWEB APPLICATION? Any application that is served commonly via http or https protocol Usually being served from a remote computer acting as a host/server
- 6. How does aWeb Application differ with Desktop Applications ?
- 7. Common Web Applicationsdo not need to be installed on the client Requires only a Web Browser to run Easily Distributable due to native support of the underlying technoloy to concurrent connections and users Web vs Desktop
- 8. Common Desktop Applicationsare secured by nature, because physical access is needed to tamper with data Does not require network or internet connection to function because they usually deal with offline data only Web vs Desktop
- 9. Common Types WebApplications (Open Source Examples)
- 10. Content Management Systems(CMS) E-Commerce Customer Relationship Management Systems (CRM) Forums / Discussion Boards Common Types
- 11. Are Web Applicationswhich supply the basic functionalities of a ready-to-deploy dynamic website which deals with articles and content. Content Management Systems
- 12. Mambo CMS - http://mambo-foundation.org MiaCMS - http://miacms.org Joomla - http://joomla.org Drupal - http://drupal.org Content Management Systems
- 13. Are Web Applicationswhich supply the basic functionalities of a ready-to-deploy E-Commerce Website which serve as an online shopping portal. E-Commerce Systems
- 14. OSCommerce - http://oscommerce.com Magento - http://www.magentocommerce.com/ E-Commerce Systems
- 15. Are Web Applicationsmainly used for Customer Support. It is a system where client ' Ticket Complaints ' are managed and resolved Customer Relationship Management Systems
- 16. SugarCRM - http://sugarcrm.com VTiger - http://vtiger.com Customer Relationship Management Systems
- 17. Are Web Applicationsmainly used for threaded communication among its community user-base. It is considered as an 'enhanced bulletin board' system due to its similarity with the BBS systems we knew from the late 80's Forums / Discussion Boards
- 18. PunBB - http://punbb.informer.com/ SMF - http://www.simplemachines.org/ Forums / Discussion Boards
- 19. Layers of a Web Application
- 20. Layers: Browser RenderedHTML HTML Code Script (Server Side)
- 21. Browser Rendered HTMLHTML Code Script (Source)
- 22.
- 23. REQUEST RESPONSE Server(Host) User (Client)
- 24. User (Client) –Actions invoking a Web Request Initial Page Load Loading of Media (CSS, Javascript, Images, Flash, Videos etc.) Submission of Forms Download Requests
- 25. Basic Components ofa Web Application
- 26. Basic Components: DatamodelUser Interface Application Logic
- 27. Datamodel: Is wherethe actual data is stored/retrieved Data is stored in tabular format with predefined columns and datatypes
- 28. User Interface: Iswhat the end-user sees. It is commonly a collection of static HTML files (optionally with Javascript/CSS and other media). These Static HTML are commonly called “Theme” or “Template” and where processed Data will be placed upon script processing.
- 29. Application Logic: Isthe main workhorse of a web application, it interacts with the Datamodel and outputs processed data to the User Interface.
- 30.
- 31. The END ContactInfo: [email_address]