The web Community's own Rule Engine (or for short, webCoRE) is a general rule engine for SmartThings. It works by allowing users to create scripts that are interpreted and executed by the SmartThings SmartApp, allowing for complex decisions.
[details about the installation process go here]
webCoRE uses a web interface for most interactions with the user. The Dashboard is the central hub to controlling webCoRE.
The building block of webCoRE is called a piston. It's really what drives the engine, after all. A piston is a standalone automation process that executes tasks based on predefined logic.
During the SmartApp installation process, you will be asked to enter a security password. Make sure to remember it, as you will need it to initialize the dashboard. You can always change the security password by going to the SmartThings SmartApp's Settings and tapping on Security. You will also be asked to select a list of devices that webCoRE will have access to. You can change this list at any time by going back to the SmartThings SmartApp's Settings menu and tapping on Available Devices. Once you completed the installation procedure, tap the Dashboard menu. This will open the Dashboard in a web browser that will swiftly prompt you for the security password. Enter the password and click Authorize and you should now see the Dashboard. [more details here]