Introducing a peer review or pair programming practice into an organization (or project) can be an effective way to improve quality while minimizing culture change. Peer reviews in the form of a code review can be effective way of identifying defects and therefore improving application quality. When establishing a peer review practice, the following can help to ensure success: establishing coding standards; identifying appropriate level of peers; establishing a closed loop defect system to ensure corrective action; and providing requirements and/or defect records to understand why a particular code artifact is being created, changed, or fixed. Pair programming can also be an effective way of identifying defects and in solving problems, thereby improving application quality. When establishing a pair programming practice, the following can help ensure success: identifying appropriate level of peers; finding people that work well together; and focusing on problem solving work. Once you have started either (or both) practices, continually monitor its effectiveness with both metrics and feedback from the people involved for continuous improvement.
1. Peer Reviews in Software: A Practical Guide, by Karl E Wiegers, Addison-Wesley, 2002
2. Strengthening the Case for Pair Programming, by Laurie Williams, Robert R Kessler, Ward Cunningham, Ron Jeffries, IEEE Software July/August 2000 (http://collaboration.csc.ncsu.edu/laurie/Papers/ieeeSoftware.PDF)