| Integration Type | Protocol/Method | Use Case | |-------------------------|-------------------------------------------|----------------------------------------------| | HRIS | REST API (JSON) or ODBC | Sync employee hires/terminations | | Payroll | Flat file (CSV), SFTP, or direct SQL view | Automate salary calculations | | Active Directory | LDAP / SAML 2.0 | Single sign-on (SSO) | | Slack / Teams | Webhooks | Send daily attendance alerts to managers |