What makes software development unique from the development of other large, complex products, such as ships, utilities, bridges, roads, or buildings?

Why do plan-driven and linear-sequential development practices often fail when developing software?

What are some of the development practices often associated with lightweight and agile-based software development practices?

Why do you think the software engineers who defined the Agile Manifesto found common ground on values and principles instead of specific development practices?

Why is XP considered a methodology and not a framework?

Why is Scrum considered a framework instead of a methodology?