# Workplace Strategy Planner Object Reference

The Workplace Strategy Planner package includes several custom objects and fields that are described in this section. Workplace Strategy Planner requires Workplace Command Center and builds on standard objects, such as Employee, Location, and Address.

The relationships between objects used by Workplace Strategy Planner are described in the following diagram:

![Workplace Strategy Planner introduces three new custom objects (Crisis Metric, Crisis Metric Threshold, and Location Assessment) and uses the standard objects Employee, Crisis, Location, and Address.](https://a.sfdcstatic.com/developer-website/sfdocs/service-cloud/media/wkplan_strategy_planner_erd.png)

- **[Standard Objects Used by Workplace Strategy Planner](/docs/service/workdotcom-dev/guide/wkplan-standard-objects.md)**

  Workplace Strategy Planner requires Workplace Command Center and uses the standard objects Location, Crisis, Address, and Employee. Strategy Planner also uses custom fields on the standard objects Address and Employee.

- **[Custom Objects Used by Workplace Strategy Planner](/docs/service/workdotcom-dev/guide/wkplan-custom-objects.md)**

  The Workplace Strategy Planner managed package installs several custom objects that are required in addition to the standard objects Employee, Location, Crisis, and Address.