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  Southern Illinois University


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Welcome to ecourse.org: the Information Infrastructure for Education in the information age! This system allows instructors from any school or college (including home schools and training programs) to teach either onsite or online courses . It allows students to manage all their ongoing school works and past academic records at one location.

Our mission is to redefine the model of learning and re-engineer its process by providing innovative administrative and instructional technologies. Click here for our beliefs.

If you are a school administrator and would like to use ecourse.org for your classes, please create school profiles. Instructors and students may signup independent user account. For questions, contact us.


What is your opinion? Could another species someday replace us as Earth's dominant intelligent life and, if so, which species?
 
  • (643 Week 8/15 Outline: Class Diagrams) (by Liping Liu) Class Diagram: A graphical model representing conceptual objects and their relationships Two Types of Relationships: Inheritance: Instance Level: Child objects are special kinds of a parent object (is-a relationship) Class Level: Child classes are sub classes of a parent class Wrong: A child object is contained in a parent object (why?) Example 1: Employee, FullTimer, and PartTimer Account, Checking, and Savings Encapsulation Principle Revisit:  private data for parent class must be changed into protected one behavioral members must be changed into virtual if child class needs to change their implementation... more >>


This system is designed and developed by Professor Liping Liu with financial support from Southern Illinois University at Carbondale. It evolved from a prior version called CourseWeb (for courses prior to Year 2000) and UXTEND.COM and www.e-course.org.
     
 
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