Fundamentally, creativity tools can be divided into two categories - linear or left-brain techniques and intuitive or right-brained techniques. Different tasks may be more amenable to one type of tool or another. For example, in trying to define the attributes of a complex process, we might use a linear tool. To try to find a new use for one of our products, an intuitive technique may work better. In addition, individuals tend to have a preference for one type of tool versus another. By the time we become adults we typically rely more heavily on one part of our brains (right or left) and thus some of us are more comfortable with one or the other category of creativity tools.