The two prior installments of this series covered quite a bit of territory (for a list of those articles, see "Other Articles in This Series," below). Looking back, we started with a simple 5250 RPG application and repurposed the code with the goal of turning it into a mobile application. Using CGIDEV2 to add a web interface let us stay in our comfort zone by never straying outside of RPG. But it is a big world out there, so we delved into HTML5, Ajax, and JSON. To change our ...

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