Rapid Application Development
                            using
Free and Open Source Frameworks


 RAD Solutions Private L...
Why RAD
      ●
          Today's world is agile
      ●
          Requirements and business rules change dynamically
    ...
Moving towards RAD

         ●
             Switching from statically typed languages like
             Java or .Net to dy...
Dynamically typed
         languages
          ●
              5-10 times more productive than Java or .NET
          ●
  ...
Why we prefer Python
      over Ruby and others
      ●
          Popular
            –   Availability of Libraries, tools...
A few references
      ●
          http://home.pacbell.net/ouster/scripting.html
      ●
          http://www.ferg.org/pro...
Leading RAD Frameworks
               ●
                   Turbogears
               ●
                   Pylons
         ...
TurboGears
Turbogears

        ●
            Rapid web development mega framework
        ●
            A pack of many best-of-the-br...
Sample application
        ●
            Let's develop a sample application in minutes!
        ●
            Refer http:/...
Unique features of
      TurboGears
      ●
          Full support for SQLAlchemy – the complete ORM
      ●
          Col...
Components of Turbogears
      ●
          Database ORM: SQLAlchemy, SQLObject
      ●
          Controller: CherryPy
    ...
SQLALchemy

      ●
          The king of ORMs in Python
      ●
          Mapper pattern – no restriction in mapping to
 ...
CherryPy
      ●
          The application server of Turbogears
      ●
          A pythonic, oo web app framework
      ●...
Genshi
      ●
          The templating engine of Turbogears
      ●
          Templates are well-formed XML
      ●
     ...
MochiKit

        ●
            The Default JavaScript/AJAX library of
            Turbogears
        ●
            Python...
Others
        ●
            Some other components of Turbogears are:
              –   Identity management
              ...
For Management
Benefits of Turbogears

      ●
          Better products can be developed much
          cheaper and faster
      ●
     ...
Benefits of Turbogears
      ●
          Business processes and back office
          operations can be easily automated
 ...
Benefits of Turbogears
       ●
           Rapid prototyping
             –   Customers say “ I may not know how to define...
Conclusion

         The cutting-edge MVC RAD frameworks are the
             answer to the agile business solutions of
  ...
References
        ●
            http://sanjaypatel.blogspot.com/2007/07/why-i-chose-turbogears.html
        ●
           ...
Thank You!
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Rapid Application Development using FOSS

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Rapid Application Development using FOSS MVC frameworks

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Rapid Application Development using FOSS

  1. 1. Rapid Application Development using Free and Open Source Frameworks RAD Solutions Private Limited 220/226, Sekhar Enclave Lane 3, Biju Pattnaik College Road, Jayadev Vihar Bhubaneswar 751015  info@radsolutions.co.in
  2. 2. Why RAD ● Today's world is agile ● Requirements and business rules change dynamically ● New application requirements emerge everyday ● Traditional software development methodologies and tools are no more adequate ● Rapid application development and maintenance is needed! Page 2 Freely redistributable
  3. 3. Moving towards RAD ● Switching from statically typed languages like Java or .Net to dynamically typed languages like Python, Ruby ● Using cutting edge MVC frameworks ● Using FOSS software development tools Page 3 Freely redistributable
  4. 4. Dynamically typed languages ● 5-10 times more productive than Java or .NET ● Features making it so productive – Dynamically typed ● Type checking is done at run-time ● classes and functions are objects, can be created and altered at runtime – No Compilation cycle – Concise – Powerful Page 4 Freely redistributable
  5. 5. Why we prefer Python over Ruby and others ● Popular – Availability of Libraries, tools and frameworks – There is a good deal of free and open source software available in Python for all kind of activities ● Faster ● Some features like internationalization is better supported Page 5 Freely redistributable
  6. 6. A few references ● http://home.pacbell.net/ouster/scripting.html ● http://www.ferg.org/projects/python_java_side-by-side.html ● http://www.artima.com/weblogs/viewpost.jsp?thread=4639 Page 6 Freely redistributable
  7. 7. Leading RAD Frameworks ● Turbogears ● Pylons ● RoR ● Django ● Zope ● You may be interested to read Why I chose TurboGears Page 7 Freely redistributable
  8. 8. TurboGears
  9. 9. Turbogears ● Rapid web development mega framework ● A pack of many best-of-the-breed free and open source frameworks for developing complete web applications ● MVC pattern ● database-driven, ready-to-extend application can be developed in minutes Page 9 Freely redistributable
  10. 10. Sample application ● Let's develop a sample application in minutes! ● Refer http://radisfun.com/Tutorials Page 10 Freely redistributable
  11. 11. Unique features of TurboGears ● Full support for SQLAlchemy – the complete ORM ● Collection of best-of-the-breed components ● Numerous widgets available ● Identity management ● Form validation ● Being used by many vital products like TinyERP Page 11 Freely redistributable
  12. 12. Components of Turbogears ● Database ORM: SQLAlchemy, SQLObject ● Controller: CherryPy ● Template engine: Genshi, Kid ● Javascript/AJAX library: MochiKit ● Automated testing: Nose ● Others: Widgets, Identity Management, FormEncode Page 12 Freely redistributable
  13. 13. SQLALchemy ● The king of ORMs in Python ● Mapper pattern – no restriction in mapping to complex databases ● Can handle composite primary keys ● Powerful enough for complicated tasks ● Extremely easy to use for all the basic tasks Page 13 Freely redistributable
  14. 14. CherryPy ● The application server of Turbogears ● A pythonic, oo web app framework ● Maps URL request to Python methods ● CGI variables are mapped to method arguments Page 14 Freely redistributable
  15. 15. Genshi ● The templating engine of Turbogears ● Templates are well-formed XML ● Supports template inheritance and XSLT-like matching ● Designer-friendly: viewable in browser Page 15 Freely redistributable
  16. 16. MochiKit ● The Default JavaScript/AJAX library of Turbogears ● Pythonic JavaScript library ● “ Makes JavaScript suck less” ● Well-documented ● Reliable (lots of automated tests) Page 16 Freely redistributable
  17. 17. Others ● Some other components of Turbogears are: – Identity management ● User, group, permission scheme ● IP-based access control – Widgets – Form Validation through FormEncode Page 17 Freely redistributable
  18. 18. For Management
  19. 19. Benefits of Turbogears ● Better products can be developed much cheaper and faster ● Developed products are easily maintainable ● Developers enjoy the development and maintenance cycles ● Learning curve is lesser ● Customers get the “ time to market” advantage Page 19 Freely redistributable
  20. 20. Benefits of Turbogears ● Business processes and back office operations can be easily automated ● Web solutions can be developed quite easily ● Provides agile solutions, which do not resist change ● Achieves Productivity Arbitrage – the competitive advantage gained by delivering solutions below market price, but incurring lower delivery cost by using new technologies. Page 20 Freely redistributable
  21. 21. Benefits of Turbogears ● Rapid prototyping – Customers say “ I may not know how to define my application, but I’ ll know when I see it.” With Turbogears, the prototype could happen faster, in multiple cycles ● Iterative development is enjoyable Page 21 Freely redistributable
  22. 22. Conclusion The cutting-edge MVC RAD frameworks are the answer to the agile business solutions of tomorrow Page 22 Freely redistributable
  23. 23. References ● http://sanjaypatel.blogspot.com/2007/07/why-i-chose-turbogears.html ● http://agilemanifesto.org/principles.html ● http://www.turbogears.org ● http://www.sqlalchemy.org ● http://www.cherrypy.org ● http://genshi.edgewall.org ● http://mochikit.com Page 23 Freely redistributable
  24. 24. Thank You!

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