The hardest single part of building a software system is deciding precisely what to build.

Even the best planning is not so omniscient as to get it right the first time.

Improving your process won't move you from good to great design. It'll move you from bad to average.

The management question, therefore, is not whether to build a pilot system and throw it away. You will do that. Hence plan to throw one away; you will, anyhow.

Show me your flowcharts and conceal your tables, and I shall continue to be mystified. Show me your tables, and I won't usually need your flowcharts; they'll be obvious.

Originality is no excuse for ignorance.

I have never seen an experienced programmer who routinely made detailed flow charts before beginning to write programs.