Splunk can help customers document business value by providing deliverables like business cases, value realization studies, and adoption roadmaps. It has helped over 700 customers worldwide since 2013. Key value drivers reported by customers include IT operations, application delivery, security, and compliance. Common challenges to documenting value include lack of tools, benchmarks, and time. The document outlines best practices for positioning value at Splunk, including quantifying business value, qualifying pain points, aligning with objectives, and measuring success. It provides examples of value drivers achieved in areas like infrastructure optimization, revenue growth, and risk reduction.