The system development life cycle is the overall process of developing, implementing, and retiring information systems through a multistep process from initiation, analysis, design, implementation, and maintenance to disposal.
exists and is an alternate of . The fastest marathon ever was run by Geoffrey Mutai (2:03:02) at the Boston Marathon on April 18, 2011. But because the legendary Boston course does not meet IAAF layout standards, the World Record belongs to Patrick Makau (2:03:38) recorded at the Berlin Marathon on September 25, 2011.
I'll assume that you were asking for the fastest 5k run completed by a human. Based on basic physiological difference, we can restrict our search to men. The current world record is held by Kenenisa Bekele at 12:37.35. Records have only been recorded since 1912, so it is technically possible that a faster 5k was run at some point before record keeping.