two questions on data warehouse \"less than 1 hour work\"

Q1) a) Why is Metadata essential for IT? List Five processes in which metadata is significant in IT and explain why? b) List any five examples of business metadata? Q2) a) You hired as expert on the data warehouse project in Telecommunication Company. Write a memo to your project leader describing the types of challenges in your environment, and suggest some practical steps to resolve the challenges. b) In your organization, assumes that customer name and addresses are maintained in three customer’s files, supporting three different sources operational systems. Describe in details the identification problem you are likely to face when consolidating the customer record from three files. Write general procedure to resolve the problem.