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.
More men than women run half marathon races and the overall peak for everyone is 1:42. The average time to complete a half marathon is 1:50 for men and 2:05 for women and overall 1:54 for everyone. Winning times tend to be about 1:08 for men and 1:19 for women - there are faster and slower winning times of course.