Explain why designing the appropriate HR System for a firm can result in a sustained competitive advantage? What are the main categories of how HR systems can

Explain why designing the appropriate HR System for a firm can result in a sustained competitive advantage?What are the main categories of how HR systems can be translated into organizational outcomes such as reduced costs and financial returns? Provide examples.Compare what the HR systems might look for at Wal-Mart, a new web startup company, and a law firm. How would you achieve a sustainable competitive advantage through HRM systems in each of these firms?What questions need to be asked during an HRM audit? How do they contribute in identifying an improvement area or change effort?