The evolution of content distribution models over the past decades has introduced a tremendous amount of flexibility for content processing and delivery. The availability of metadata, which provides information related to descriptive, business, and technical aspects of content, is needed to take advantage of advanced content streaming approaches. Commonly used metadata approaches primarily serve static distribution models. Additionally, there are a lack of solutions available that provide a consistent, user-friendly, and efficient approach to managing metadata. This document provides a starting point for understanding metadata usage and challenges and looks at organizations that have developed metadata-related standards.