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15. In project management, scoring models is a method used to evaluate alternative information system projects. In order to use this method, we need to: a) estimating cash inflows and outflows of information system projects. b) assigns weights to various features of information systems and calculates weighted totals. c) lists the relative probability of risks and the relative impact of risks associated with information system projects. d) calculate return on investment and net present value. c) none of the above. 16. Customer relationship management systems (CRM) typically has three major components: sales, customer service, and a) operation. b) public relations. c) human resources. d) research and development. e) marketing 17. is processed data, giving meanings to data through context and relations. Answers what, who/which, when, and where. a) database. b) information. c) data. d) wisdom. e) knowledge. 18. All of the following is true about non-relational databases (NoSQL) except: a) non-relational databases (NoSQL) stores data across distributed machines (nodes). b) non-relational databases (NoSQL) are easier to scale. c) non-relational databases (NoSQL) handle large volumes of unstructured and structured data (Web, social media, graphics). d) non-relational databases require specific data structure and build relationship between the tables. e) non-relational databases (NoSQL) are fault-tolerant. 19. In project management, risk/benefit analysis and scoring models are used in a) scope verification. b) Gantt chart. c) project scope management. d) portfolio project management. e) project cost management