Sustrik's law: "Well-designed components are easy to replace. Eventually, they will be replaced by ones that are not so easy to replace." > In a long-lived pr

Sustrik's law: "Well-designed components are easy to replace. Eventually, they will be replaced by ones that are not so easy to replace." > In a long-lived project, components are being replaced. Nice reusable components are easy to replace and so they are. Ugly non-reusable components are pain to replace and each replacement means both a considerable risk and considerable cost. Thus, more often then not, they are not replaced. As the years go by, reusable components pass away and only the hairy ones remain. In the end the project turns into a monolithic cluster of ugly components melted one into another. http://250bpm.com/blog:49 http://250bpm.com/blog:49