Antipattern

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What are antipatterns?
- Commonly used patterns that are inefficient or counterproductive in practice
- The opposite of design patterns
- A proven and documented refactored solution exists
Categories of antipattern
- Orgnaizational
- Project management
- Software design
- Methodological
- Configuration management
Organizational antipatterns
- Vendor lock-in
- Analysis paralysis
- Stovepipe enterprise
Project management antipatterns
- Software bloat
- Smoke and mirrors
- Mushroom theory of management
- Groupthink
Software design antipatterns
- God class
- Big ball of mud
- Poltergeists
- Gold plating
Programming antipatterns
- Coding by exception
- Cargo cult programming
- Hard/soft coding
- Magic numbers/strings
- Spaghetti code
- Boat anchor
Methodological antipatterns
- Copy and paste
- Golden hammer
- Reinventing the wheel
- Premature optimization
- Test driven development
Student antipatterns
- Nightmare before deadline
- Ask me no questions, tell me no answers
- Headbanger
- Never ending story
- Redeye
What is analysis paralysis?

OVer analysis of requirements or design that prevents progress
What is stovepipe enterprise
- Information is only transmitted up and down the organization
- Deparments/peers don't communicate
Alternative name to smoke and mirrors

Vaporware
What is a big ball of mud antipattern?
- A system with no recognizable architecture
- Usually the occurs over time with lots of people working on it
What are poltergeists?
- Objects who only purpose is to pass information to another object
- Usually have a very short lifetime
- Associated with middle man code smells
What is gold plating?

Working on a project beyond the point where the value is worth the effort
What is coding by exception?

Code evolves by having special case functionality added piecemeal
Examples of cargo cult programming
- Copy and pasting code that you don't understand
- Overuse of design patterns
- Unnecessary comments
- Deletion code in garbage collected languages
- Factory objects for simple objects
What is cargo cult programming?

Ritual inclusion of program structures that have no use in the program
What is a boat anchor?
- Keeping a part of the system that no longer has a use
- Associated with lazy class code smell
- Makes maintenance hard and lowers understandability
When is copying and pasting ok?
- Boiler plating
- Replicate and specialize
- Cross-cutting concerns
What is Tester driven development?
- New requirements are specified by bug reports
- Characterized by long testing phase
What are the symptoms of tester driven development
- Very late projects
- Poor code quality
Causes of tester driven development
- Testing started too soon
- Requirements were incomplete
- Tester are inexperienced
- Developers are inexperienced
- Poor project management

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Author

Ant

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Card Set

Antipattern

Description

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Updated

2020-12-11T03:19:54Z

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