21) A T-Bone diagram is a tool that allows teams to identify and graphically detail all possible causes related to a problem and discover root causes of the problem at hand. 22) Check sheets graphically illustrate the causes of a certain event. 23) A check sheet is a table or form that is used to allow a team to systematically record and compile data from historical sources or observations as they happen in real time. 24) Pareto charts are usually used when analyzing data about the frequency of problems or causes in a process. 25) Although popular, the NGT has not been shown to enhance one or more dimensions of effectiveness of decision-making groups. 26) When there is concern about some team members not participating, NGT can result in a high-quality decision-making process. 27) TMAP is a tool to achieve aggregate opinions concerning real-world knowledge solicited from experts within certain topic areas. 28) The Delphi Technique may be used by project managers and the project team to discover what is actually known or not known about a specific topic. 29) The Delphi Technique can help generate a consensus. 30) SWOT analysis is a strategic method for identifying whether to use a component or a feature in a project.