Learning Objectives

After completing this lesson, you will be able to do the following:

• Understand Parent-to-pico relationships and subscriptions
• Use the developer tools to manage pico subscriptions
• Link parent picos with a subscription programmatically to their children picos and have them interact. 

Prerequisites 

Completed (Classic) Quickstart lesson.

• Be able to register and install rulesets

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• Be able to create channels.
• Understand how events are raised on channels

Completed Pico-Based Systems.

• Understand what a Pico is.
• Be able to create new child Picos

Subscriptions

One of the most common subscription patterns is parent-to-child.  Subscriptions are symmetric channel pairs that allow two picos to communication. 

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