a)how/what was data visualization and data management was inthe past and how it has evolved all this years and how is it at present in the health care sector

a)how/what was data visualization and data management was inthe past and how it has evolved all this years and how is it at present in the health care sector. 

b. Explain with examples at least 3 benefits and drawbacks of data visualization and data management in health care industry  

c. State at least 2 challenges of data management and data visualization in health care industry each and how to overcome those challenges  

d. Discuss at least 2 relevant real life case studies regarding data visualization and data management each in health care industry.

e. Give at least 2 recommendations to further improve data management and visualization in health care industry.