Straddle technique straight, and head and trunk pass the bar at the same time. Charles Dumas, the first high jumper to clear 7 ft, and John Thomas (silver medal at the 1964 Olympics) used this technique. Valeriy Brumel (gold in 1964) dove a little bit, his head going over the bar before his trunk. Probably the most extreme exponent of the dive straddle was Bob Avant, who cleared 7 ft. in 1961. Avant's technique was close to a pure dive, with just a small knee lift on his lead leg. The last world record jump with the straddle technique was Vladimir Yashchenko's
Event partitioning The premise of event partitioning is that systems exist to respond to external events: identify what happens in the business environment that requires planned responses, then define and build systems to respond according to the rules of the business. In particular, a business system exists to service the requests of customers. A customer, in the jargon of the Unified Modeling Language (UML), is an "actor". The method has the following steps. The technique was extended with "non-event" events by Paul T. Ward and Stephen J. Mellor in "Structured Development for Real-Time Systems: Essential Modeling Techniques". Yourdon/DeMarco style of data dictionary