نفسياً بحال افضل من الحال منذ عدة اسابيع اللهم لك الحمد و الشكر انفرجت الضائقة التى مررت بها و اصبح الحال للافضل

From The Book Professional Software Development

Engineers Produce Plans , Builders Implement The Plans To Produce a Product

Terri Maginnis

If We Built Our Houses The Way We Build Software , The First Wood Picker That Came Along Would Destroy Civilization

Pareto principle

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For other uses of the word pareto, see Pareto.

The Pareto principle (also known as the 80-20 rule, the law of the vital few and the principle of factor sparsity) states that, for many events, 80% of the effects come from 20% of the causes. Business management thinker Joseph M. Juran suggested the principle and named it after Italian economist Vilfredo Pareto, who observed that 80% of income in Italy went to 20% of the population. It is a common rule of thumb in business; e.g., "80% of your sales comes from 20% of your clients."

Pareto principle - Wikipedia, the free encyclopedia