Life-cycle Quotes

In the Patanjali Yoga, five fundamental impurities are mentioned: avidya (nescience), asmita (ego), raga (attachment), dvesha (aversion), and abhinivesa (gross worldliness, craving).... They are klesas, very inadequately defined as defilements.... All that we have desired and thought have gone into making them. They are woven into the fabric of our emotions, desires, thoughts. They keep us bound down to a particular life-cycle. They are built up of samskaras, impressions accumulated over repeated births. (Ram Swarup)
Economic principles underlie the overall structure of the software lifecycle, and its primary refinements of prototyping, incremental development, and advancemanship. The primary economic driver of the life-cycle structure is the significantly increasing cost of making a software change or fixing a software problem, as a function of the phase in which the change or fix is made. View quote
Barry Boehm