Requirements and challenges
This chapter explores the challenges that are associated with the application's requirements. The following user-centric statement summarizes the high-level business requirement:
"As a Walmart business unit associate, I need the ability to request information about granular activities or events that are related to the operations of my business unit, and to receive that information within 2 seconds of my request."
The following sections review the technical details of reaching this objective. Factors include data volume, ...

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