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Control processors have more processing power than controllers,
allowing them to handle the demands of large AV systems
with many devices to control.
GUI Development
If touchpanels are the chosen user interface, GUIs must
be designed and built. Show the client sample GUI tem-
plates. Determine if an existing template is acceptable
or if a custom design is required. Once GUI development
starts, map out the required functionality of the system
and develop the GUIs accordingly. Keep it simple. Include
only functionality needed to meet client goals, avoiding
the temptation to control every device function. Keep
everything easy to read and understand, avoiding screen
clutter. Be consistent. Provide screen shots to the client
FIGURE 10: Software tools from AV system suppliers, supported by helpful
guides and training courses, provide everything it takes to design highly functional
touchscreen GUIs that are intuitive and engaging.
showing the colors, labels and logos that will be used and
demonstrate the general flow of the GUI before getting
too far into design. Get client approval in writing. All
major AV control system suppliers provide GUI- building
software tools and helpful guides to facilitate GUI devel-
opment. When GUI design is complete, provide screen
captures to the client showing all functionality. Provide
a live demonstration, if possible, letting the client inter-
act with the GUIs. When the client is satisfied, get final
approval in writing (Figure 10).
