This document discusses key components for mobile device management (MDM) in both bring-your-own-device (BYOD) and company-owned device scenarios. It identifies 17 key components for MDM, including policy, risk management, configuration management, software distribution, security settings, and selective wipe/remote wipe capabilities. For each component, the document provides a brief description and rates its importance as either "must have", "optional", or dependent on individual organizational risk assessments. The goal is to help organizations understand essential MDM capabilities for managing diverse mobile environments.