Case Study on the Use of Visuals to Track Revenue, Expenses, and Process What is CCO? How is it used? The CCO technique has no traceable origin, but its application is self-evident and imminently practical. The technique is typified by its initialism, i.e., CCO that self-describes the process: what is the condition underlying the problem(s), what is the cause of the underlying problem(s), and what is the outlook of the underlying problem? Here, the author provides an illustration of CCO and how his firm used it in an engagement.