The ability of computers to control the video fifa 15 coins image has introduced exciting possibilities for enhancing feedback. An inexpensive IBM-based system was developed for the team sport of field hockey; this system has been modified to analyse and provide feedback for ice hockey and soccer (Franks and Nagelkerke, 1988). Following the game, a menu-driven analysis pro- gram allowed the analyst to query the sequentially stored time–data pairs. Because of the historical nature of these game-related sequences of action, it was possible to perform both post- and pre-event analysis on the data. That is to say, questions relating to what led up to a particular event or what followed a particular event could now be asked. In addition to pre- senting the sports analyst with digital and graphical data of team performance, the computer can also be programmed to control and edit the videotape record of the game action.

The interactive video computer program could access, from the stored database, the times of all specific events such as goals, shots, set plays and so on. Then, from a menu of these events, the analyst could choose to view any or all of these events within one specific cate- gory. The computer may be programmed to control the video such that it finds the time of the event on the video and then plays back that excerpt of game action. It was also possible to review the same excerpt with an extended ‘lead in’ or ‘trail’ time around that chosen event.

Recently, more and more feedback is given in the form of edited videotapes. It is obvi- ously more relevant to the feedback between the coach and the player that the players see the elements of their performances that the coach is discussing. This form of feedback is far more immediate to the task of communicating the message from the analyses and obviously easier to understand than tables of data, or even clearly presented colour graphics. Consequently, the modus operandi of a notational analyst working with a coach, has changed radically from that 5 or 6 years ago. The analyses are still completed, either in-event or post-event, but the data are then reinterpreted via edited video tapes – some coaches still want the actual data on their players’ performances. As everybody is now ‘visually’ literate, the expectation of the quality of the videos is that it will be broadcast quality. If it is not, players tend not to watch or give the messages in the video any credence. Consequently, sophisticated computerized video editing suites have become a necessary part of the notational analysts’ battery of equipment.

The ability of computers to control the video image has now made it possible to enhance existing sport specif ic analytical procedures. The pioneering work of Franks and his colleagues was completed without the use of digital video or the much larger memory capacities that are now available for computers. The advent of these has enabled commercial systems for objective observation to be developed for the f irst time. Most of these involve a generic data input system that can then be tailored to any sport desired. The data entry can be completed in-event or post-event, with the program linking the events to the time code on the computer, the implications of the subsequent analyses can then be rendered by the com- puter editing the relevant parts of the performance and downloading them to tape for the coach and player. This factor considerably simplif ies the searching and editing processes described above. At present the editing facilities are crude and do not offer the broadcast- quality presentations of specific editing suites.