This document discusses four different ranking and classification methods used for jobs in a company: 1. Ranking Method - Ranks jobs based on monthly salaries from highest to lowest paid. 2. Classification Method - Classifies jobs into four classes based on skill level from executives to less skilled workers. 3. Comparison Method - Compares jobs based on factors like skills, physical effort, and working conditions to determine wage rates. 4. Point Method - Assigns points to factors like skills, effort, and responsibilities to determine a total point range and corresponding daily wage rate and job grade.