Applying the 80:20 Rule in Software Development

80:20 Who uses What, What do you Really have to Deliver

Another well-known 80:20 rule in software is that 80% of users only use 20% of features. This came out of research from the Standish Group back in 2002, where they found that:

• 45% of features were never used;
• 19% used rarely;
• 16% sometimes;
• only 20% were used frequently or always.

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