Select two from below and compare and contrast the two terms from the HR perspective, provide a regulation or law that is either federal or state

Select two from below and compare and contrast the two terms from the HR perspective, provide a regulation or law that is either federal or state (perhaps your residing state) to support your assessment to protect the organization or why a current employee policy necessitates a revision. 

1. Key Terms
2. seniority pay
3. longevity pay
4. human capital theory
5. job control unionism
6. General Schedule (GS)
7. merit pay programs
8. just-meaningful pay increase
9. trait systems
10. comparison systems
11. forced distribution
12. paired comparisons
13. behavioral systems
14. critical incident technique (CIT)
15. behaviorally anchored rating scales (BARS)
16. management by objectives (MBO)
17. Brito v. Zia Company
18. 360-degree performance appraisal methods
19. rating errors
20. bias errors
21. first-impression effect
22. positive halo effect
23. negative halo effect
24. similar-to-me effect
25. illegal discriminatory bias
26. contrast errors
27. errors of central tendency
28. leniency error
29. strictness errors
30. internally consistent compensation systems