Two key ideas underlying modern Agile development practices. First, that work can be done more effectively by Whole Teams in which people work together collaboratively to design and build systems. They share code, the review each other’s work, they share ideas and problems and solutions, they share responsibility, they work closely with each other and communicate constantly with each other and the customer.
The second is that working software is designed, built and delivered incrementally in short time boxes.
The idea of developers working together collaboratively, sharing code and reviewing each other’s work isn’t new. It goes back to Egoless Programming first described by Gerald Weinberg in the early 1970s, in his book The Psychology of Computer Programming.
In Egoless Programming teams, everyone works together to build the best possible software, in an open, respectful, democratic way, sharing ideas and techniques. People put personal feelings aside, accept criticism and look for opportunities to learn from each other. The important thing is to write the best possible code. Egoless programmers share code, review each other's work, improve code, find bugs and fix them. People work on what they can do best. Leadership of the team moves around and changes based on what problems the team is working on.
The result is people who are more motivated and code that is more understandable and more maintainable. Sounds a lot like how Agile teams are trying to work together today.
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