Week 6 Discussion2

"Logical and Physical Design" Please respond to the following:

• In  order to ensure optimal database performance, the logical and physical  design should consider the user requirements thoroughly. Suppose you  have been hired to transform a conceptual model into a logical model for  a sales database. Describe the specific steps that you must perform in  order to appropriately construct the database model. For each step  mentioned, speculate the risks that would take place and how you would  avoid or mitigate those risks.     
• Suggest at least three  activities that are required in the physical design process of a  database to ensure adequate physical storage and data access. Analyze  why user, security groups, and role definitions are essential to  maintain the integrity of the database.