Wirth’s law
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Wirth's Law states that software tends to bloat and become slower at a faster rate than hardware becomes more powerful. It was coined by computer scientist Niklaus Wirth in response to noticing software expanding to utilize all available memory and processing power. The document discusses causes of software bloat like prioritizing flashy features over usability. It suggests solutions like only including necessary features and giving users more customization control.
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- 1. Wirth’s Law Team 18 Laurence Lim Zohaib M. Clay R.
- 2. Agenda • Niklaus Emil Wirth • Software Bloat • Description of Wirth’s Law • History • Discussion
- 3. Niklaus Emil Wirth • Swiss Computer Scientist • Program Language Designer • Software Engineering Pioneer
- 4. Software Bloat • Wrote a paper lamenting software bloat in 1995 o Plea for Leaner Software o Software expands to fill the available memory • Every now and then Software comes out that has features that are more aesthetic then practical to the user o Software that comes in multiple tier offerings o Lose scope of main reason people use the software to begin with o Simplistic VS. Add-ons upon Add-ons o No need for too many features
- 5. Cause and Solution • Causes? o Software producers choose flashy/complexity over delivery true benefit o The user interfaces of software “forces “ users to accept unnecessary features o The focus is on making money then providing the desired product • Solution? o Strip down to basic necessity o Have features optional o Create the experience with the user in mind o Create basic template – user has control over customization
- 6. Wirth’s Law • Law: Software is getting slower more rapidly than hardware becomes faster • EX: Windows Vista installed on a computer designed for Windows 98 – Vista OS is too advanced for the available memory and processing speed
- 7. Discussion 1) Wirth’s Law leads to Software bloat 2) Software’s speed has an inverse relationship with hardware 3) Increased need for technical support 4) Decrease amount of Features 5) Give the users what they want 6) Started with unnecessary features on software 7) Related to Moore’s Law - overall processing power for computers will double every two years
- 8. Work Cited • http://searchsoftwarequality.techtarget.com/definit ion/Wirths-Law • http://en.wikipedia.org/wiki/Wirth%27s_law • http://en.wikipedia.org/wiki/Software_bloat • http://www.techopedia.com/definition/24381/wirth s-law • http://www.mooreslaw.org/