Software development is a methodology based on the principles of the Lean manufacturing process, which Toyota developed. Poor software development aims to maximize value and minimize waste in the software development process.

• Several principles underpin Lean software development:
• Respect for people: All team members should be treated with respect and allowed to contribute their ideas and knowledge.
• Continuous improvement: Lean software development involves continuously looking for ways to improve the software development process and the software itself.
• Just-in-time delivery: Lean software development focuses on delivering value to the customer as quickly as possible rather than working on long-term projects that may provide little value.
• Elimination of waste: Lean software development aims to eliminate waste in all forms, including overproduction, unnecessary steps in the process, and defects in the software.
• Focus on value: Lean software development focuses on delivering value to the customer and maximizing the value of the software to the user.
• Flow: Lean software development aims to create a smooth flow of work through the development process, with minimal disruptions or delays.
• Pull-based development: Rather than pushing work through the development process, Lean software development uses a pull-based approach, where work is started only when needed.

By following these principles, organizations can improve the efficiency and effectiveness of their software development process and deliver higher-quality software to their customers.