Source: Photo by Wilhelm Gunkel on Unsplash
“Real-time describes various operations or processes that respond to inputs reliably within a specified time interval (Wikipedia).”
Real-time data must be processed soon after it is generated otherwise its value is diminished, and real-time applications must respond within a tight timeframe otherwise the user experience and business results are impaired. It is critical for real-time applications to have reliably fast access to all data, real-time or otherwise.