Preparing content for digital signage can be a daunting task. If one breaks it up into the three types of networks; Point of Sale (all about the shopper), Point of Wait (the relevant dwell time), and Point of Transit (people on the go), then one can begin to create a plan for their network.
The planning process is the key to arriving at a viable network that delivers consitantly. Understanding the technology is important, but understanding what is going to go onto your network is critical to the success of any network.