-The SmartThings SDK is an add-on package for the Atom IDE editor -With the GUI editor, the generation of an IoT device’s plugin package is simplified so you can make web apps quickly using HTML, CSS, JavaScript, and JSON for a Cloud-connected device -Simulators for your Samsung Connect app plugin and virtual IoT device, so that you can test the interaction between the app and device, without needing any phone or IoT device hardware. -SmartThings API enables you to integrate, control and monitor a variety of your IoT devices and services into the SmartThings cloud -Providing both a WYSIWYG editing view and access to the underlying code -The Plugin Editor provides you with full control over both the UI appearance of an IoT device as it appears in the Samsung Connect app, as well as the device behavior when consumers control the UI widgets on the device plugin.

Basically an easy way to define the plugin to control an IoT device. All you need to identify the devices features and settings. You'll both have the opportunity to design the plugin through the GUI or Underlying code. Integrated CLI provides few more additional functions too. The best part is like having the simulators to make interaction between the app and device and off course without having any phone or IoT device hardware.

The best thing i like about samsung galaxy sdk is that it allows users to try and make the program and look even better and it teaches you these things that are really needed in SDK and when you learn these things i guess you are really good at SDK , im trying to learn them right now and wow its so easy and good I Reccommend this to every user