To get maximum benefit out of any upgrade, complimentary training systems need to be introduced in parallel with any hardware improvements. A wide range of training devices are now on the market. There are simple crew trainers, that allow gun crews to practice basic fire missions, and observer parties to rehearse the techniques for calling fire missions. More complex systems are now available to allow all elements of the indirect fire team to train together. These use virtual reality simulation technology to allow observers to 'see' the results of their calls for fire and make any necessary adjustments.
Data inputted by the gun crew determines where the rounds fall.
Some of these systems are based in purpose built facilities and others are field deployable, using applique devices to artillery hardware to generate the necessary inputs to the virtual environment.