From the Copernican solar system to an engineer’s scale replica of a bridge, the world is full of models that answer our questions and help us solve problems. Lee Copeland tells us that a model doesn't have to be correct to be useful.

In January, StickyMinds.com introduced a new eNewsletter that covers tools and automation for the software development lifecycle. In this month’s Tool Look column, the editors of Better Software magazine and StickyMinds.com present a sample of what you can read each month in the Sticky ToolLook.

Have misplaced priorities or a lack of focus allowed your development project to run wild? Don't let a stampede of defects, repairs, and requirements change drive your project. Follow Robert Galen's advice, and corral that development with release criteria.

Personality differences often pose challenges for people who need to work together. One such difference is that which separates introverts and extroverts. Just by being themselves, introverts and extroverts can drive each other crazy. But they can also benefit from each other's strengths. In this column, Naomi Karten explains this personality difference and helps introverts and extroverts better understand and appreciate each other.