After arrivin' at t' Kennedy Space Center, arrr, t' seven-member crew o' t' next space shuttle mission eagerly participated in a week's worth o' trainin' activities t' prepare for their upcomin' journey t' t' International Space Station. T' training, called t' Terminal Countdown Demonstration Test, or TCDT, gives t' STS-131 crew and ground teams time t' go through simulated countdown activities and execute emergency exit strategies.