Different principles used when discussing Software Development and Delivery processes.

Organizations which design systems… are constrained to produce designs which are copies of the communication structures of these organizations.

Entities should not be multiplied without necessity.

The simplest solution is most likely the right one.

The problem of determining, from a description of an arbitrary computer program and an input, whether the program will finish running, or continue to run forever.

Adding human resources to a late software project makes it later.

A methodology for identifying the most important limiting factor (i.e. constraint) that stands in the way of achieving a goal and then systematically improving that constraint until it is no longer the limiting factor. In manufacturing, the constraint is often referred to as a bottleneck.

For many events, roughly 80% of the effects come from 20% of the causes.

Assuming that specific conditions are more probable than a single general one.