eXtropia: the open web technology company
Technology | Support | Tutorials | Development | About Us | Users | Contact Us
 ::   Tutorials
 ::   Presentations
Perl & CGI tutorials
 ::   Intro to Perl/CGI and HTML Forms
 ::   Intro to Windows Perl
 ::   Intro to Perl 5
 ::   Intro to Perl
 ::   Intro to Perl Taint mode
 ::   Sherlock Holmes and the Case of the Broken CGI Script
 ::   Writing COM Components in Perl

Java tutorials
 ::   Intro to Java
 ::   Cross Browser Java

Misc technical tutorials
 ::   Intro to The Web Application Development Environment
 ::   Introduction to XML
 ::   Intro to Web Design
 ::   Intro to Web Security
 ::   Databases for Web Developers
 ::   UNIX for Web Developers
 ::   Intro to Adobe Photoshop
 ::   Web Programming 101
 ::   Introduction to Microsoft DNA

Misc non-technical tutorials
 ::   Misc Technopreneurship Docs
 ::   What is a Webmaster?
 ::   What is the open source business model?
 ::   Technical writing
 ::   Small and mid-sized businesses on the Web

Offsite tutorials
 ::   ISAPI Perl Primer
 ::   Serving up web server basics
 ::   Introduction to Java (Parts 1 and 2) in Slovak


Introduction to Web Programming
Introduction to Object Oriented Design  

  • Well these days, everyone seems to be talking about Object-Oriented Design. Well what is it?

  • Object-Oriented design (OOD) is a programming methodology which has the following characteristics

    • OOD allows programmers to more closely model the real world than ever before.

    • OOD is also a methodology which lends itself well to rapid prototyping. Object-Oriented programs can be built and modified very quickly because OOD provides the programmer with excellent tools for abstraction.

    • OOD produces reusable code. Once objects are built, it is very easy to use them in future applications so you need not ever reinvent the wheel.

    • Finally, OOD helps programmers work in dynamic environments. Object-Oriented programs can be modified quickly and easily as real-world requirements change.

  • Let's look at what the guru of Java Object Orientation, Bruce Eckel has to say,

    "Object-oriented programming appeals at multiple levels. For managers it promises faster and cheaper development and maintenance. For analysts and designers the modeling process becomes simpler and produces a clear, manageable design. For programmers the elegance and clarity of the object model and the power of object-oriented tools and libraries makes programming a much more pleasant task, and programmers experience an increase in productivity. Everybody wins, it would seem.

    If there is a downside it is the expense of the learning curve. Thinking in objects is a dramatic departure from thinking procedurally, and the process of designing objects is much more challenging than procedural design, especially if you are trying to create reusable objects."

  • Okay, so that was pretty abstract. Let's step back and come at OOD from another perspective. Perhaps some history is in order.

Object-Oriented Design Resources

Previous Page |Next Page