Compensation Management Pay Ranges, Grades, and Bands

Order Description
3. Contrast pay ranges and grades with bands. Why would use either? Does their use assist or hinder the achievement of internal alignment? External competitiveness?
Book Used from this class and information is from Chapter 8 provided in attachment:
Milkovich.G., Newman, J., & Gerhart, B. (2014). Compensation. Eleventh Edition. McGraw-Hill, Companies, Inc.
Mikovich, et. al. – Chapters 7 – Defining Competitiveness
Mikovich, et. al. – Chapters 8 – Designing Pay Levels, Mix, and Pay Structures