This page is meant to answer frequently asked questions regarding object oriented design principles, design
patterns, refactoring etc. See also
DesignPatternFaq and
OoPatternsUmlRefactoringFaq.
Where on the net do I find information on OO design?
See OoDesignLinks
What are good books on object oriented design?
See OoDesignBooks
How do I come up with a design?
See HowToDesign
Why should I use accessor methods (getters/setters)?
See AccessorMethods
What is the definition (differences) of the following terms:
BusinessObject (aka DomainObject)
ValueObject
DataTransferObject
DataAccessObject
ImmutableObject
What is the difference between Association, Aggregation and Composition?
AssociationVsAggregationVsComposition
When should I use an interface, when an abstract class?
InterfaceVsAbstractClass
Questions from IBM Sample Test
Which of the following are recommended when developing an OO system?
https://coderanch.com/t/96601/patterns/help-IBM-testhttps://coderanch.com/t/98174/patterns/clarifications-ICE-questionshttps://coderanch.com/t/98286/patterns/One-Sample-Test
CategoryFaq