A JS library for low-code app development, based on business object, event and activity classes defined with property ranges and other property constraints. OEMjs allows building business apps quickly without boilerplate code for user interfaces, constraint validation and data storage management.

A GUI to demonstrate a merge method that helps merge two manipulated data structure into a single master data structure. This is useful for offline collaborations. The master data structure can also be classified. The nodes can also be turned into a BST if all nodes are numeric.