Question 20 Interpersonal and team skills are very useful tools/techniques for collecting requirements. What are some other examples of tools and techniques for this work? 4 Data representation and data analysis Organizational process assets Waterfall and Agile principles All of the items listed are tools and techniques Project charter and requirements traceability matrix Question 21 One useful input to the 'Validate Scope' process is work performance data. Another one would be Organiztional process assets Decision making Inspections