User device configuration specification module with versioning and preview

A method, comprising:

• graphically rendering, by one or more processors, a graphical user interface having an Assignment Map canvas for specifying a first Assignment Map, the first Assignment Map graphically representing configuration data for a set of one or more user devices;
• receiving, by the one or more processors, user input specifying a plurality of conditional logic blocks at respective graphical positions within the Assignment Map canvas, each conditional logic block comprising a set of one or more conditional logic nodes, each conditional logic node having a respective assignment rule and a respective set of one or more Library Items;
• for each user device of the set of one or more user devices, evaluating, by the one or more processors, the plurality of conditional logic blocks in an order determined by a relative graphical position of each conditional logic block along a root line within the Assignment Map canvas;
• identifying, by the one or more processors, one or more differences between the first Assignment Map and a second Assignment Map;
• rendering, by the one or more processors, a graphical display depicting the differences between the first Assignment Map and the second Assignment Map;
• receiving, by the one or more processors, user input modifying one or more conditional logic blocks of the plurality of conditional logic blocks based on the identified differences between the first Assignment Map and the second Assignment Map;
• and
• configuring, by the one or more processors, each user device using respective configuration data generated based on an evaluation outcome of the plurality of conditional logic blocks.