What types of internal databases or information might one find in the following

What types of internal databases or information might one find in the following organizations? ie what information about customers should they have and stored internally- (see PowerPoints and class video)?Hilton Hotels or any hotel chain
INBEV(Budweiser)
Kroger
Then after looking at the attached sales forecasting article (Focus on first and last several pages) answer these questions:
a. What is CHAN4CAST?
b. What else does the model account for, other than the effects of such variables as past sales, trend, own and competitor prices, promotional variables, and seasonality,
c. What do they say in the article in terms of why forecasting is a challenge?
d. What are the takeaways from the article and what can management learn from CHAN4CAST?
Answer the following on a WORD DOCUMENT DOUBLE SPACED WITH TIMES NEW ROMAN AN USE THE ARTICLE provided