Design Pattern for Make a Mind Mapping Application [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, visit the help center. 开发者_如何学Python Closed 10 years ago.

What is the best suitable pattern for making a Mind Mapping Style Application like MindMiester, XMind, etc. Composite or Decorator or another pattern ?

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Design patterns are for solving algorithmic/object oriented problems in code/library/framework level when creating software, not for purposing the software itself.