They are often referred to as "the way we do things around here". These practices follow unwritten rules or behaviors, which usually deviate from the required rules or instructions (Addendum/Human Factors, 2011 pages 14-25). According to Beber (2010), they can be applied through peer pressure and force of habit after working in the workplace for a long time. Some rules and procedures are designed and tested and should be strictly enforced and followed for a reason. Standards are usually developed to solve problems that have ambiguous solutions. Ambiguous situations can lead the AMT to use another's behavior as a frame of reference around which to base their own reactions. Some norms are actually dangerous as they often detract from the group's productivity. New workers can often identify such norms rather than longtime workers because they are new to the workplace (Gasset,