2 discussion board questions from data modeling and warehousing class

1) Every business does not need a data warehouse. When does a business just need a transactional database for their data reporting needs and when does a business need a data warehouse? When would you recommend implementing a data warehouse and when would you recommend against it? What are the pros and cons of data warehouses? Be specific.

2)At Wilmington University, there are people with many different roles who need different subsets or aggregations of the data: the president, the deans, the chair of each program, the online coordinators who work with many different chairs, the admissions and financial aid staff, instructors, student advisors, site managers who schedule classrooms, program assistants who order textbooks, etc. What are some examples, not stated in the case study in Week One, of data analysis (business intelligence) that people in different roles might need to do? List at least two examples involving OLAP and/or data mining. In addition to creating your own thread on the discussion board, please respond to at least two other students’ postings

Note; you need to give a small comment to 2 other classmates work