According to Ritzer, the four main dimensions of McDonaldization are:
Efficiency - The optimum method of completing a task. The rational determination of the best mode of production. Individuality is not allowed.
Calculability - Assessment of outcomes based on quantifiable rather than subjective criteria. In other words, quantity over quality. They sell the Big Mac, not the Good Mac.
Predictability - The production process is organized to guarantee uniformity of product and standardized outcomes. All shopping malls begin to look the same and all highway exits have the same assortment of businesses.
Control - The substitution of more predictable non-human labor for human labor, either through automation or the deskilling of the work force.
There are other dimensions of McDonaldization that Ritzer didn't include with the main four, but are worthy enough for prime attention. They are:
Irrationality - A side effect of over-rationalized systems. Ritzer himself hints that this is the fifth dimension of McDonaldization. An example of this could be workers on an assembly line that are hired and trained to perform a single highly rationalized task. Although this may be a very efficient method of operating a business, an irrationality that is spawned can be worker burnout.
Deskilling - A work force with the minimum abilities possible to complete simple focused tasks. This means that they can be quickly and cheaply trained and are easily replaceable.
Consumer Workers - One of the sneakiest things about McDonaldization is how consumers get tricked into becoming unpaid employees. They do the work that was traditionally performed by the company. The prime example of this is diners who bus their own tables at the fast food restaurant. They dutifully carry their trash to friendly receptacles marked "thank you." (The extreme rationalization of this is the drive-thru; consumers take their trash with them!) Other examples are many and include: ATM's, salad bars, automated telephone menus, and pumping gas.