The document discusses several human resources modules: 1. The Employee module allows inputting employee details, job profiles, contact information, biographies, education, and work experience. It also manages employee resignations. 2. The Leave Application module tracks employee leave requests and approvals. 3. The Salary and Payroll module defines pay periods, salary structures, assigns salaries, generates pay slips, and accounts for salary payments. 4. The Appraisal module creates templates to evaluate employee performance against goals and provides development guidance.