Is Big Data really a problem on its own, or are the use, control, and security of the data the true problems? Provide speci c examples to support your answer. What are the implications of having incorrect data points in your Big Data? What are the implications of incorrect or duplicated customer data? How valuable are decisions that are based on faulty information derived from incorrect data? Explain the difficulties involved in managing data. What are the problems associated with poor-quality data? What is master data management? What does it have to do with high-quality data? Explain why master data management is so important in companies that have multiple data sources. Describe the advantages and disadvantages of relational databases. Explain why it is important to capture and manage knowledge. Compare and contrast tacit knowledge and explicit knowledge. Draw the entity-relationship diagram for a company that has departments and employees. In this company, a department must have at least one employee, and company employees may work in only one department. Draw the entity-relationship diagram for library patrons and the process of checking out books. You are working at a doctor's office. You gather data on the following entities: PATIENT, PHYSICIAN, PATIENT DIAGNOSIS, and TREATMENT. Develop a table for the entity, PATIENT VISIT. Decide on the primary keys and/or foreign keys that you want to use for each entity