Solution Templates are "mini-applications" that can be a great starting point for your next project. You can download these into an empty "Root" holder (they are complete applications), then extend their functionality as you need. Examples include a Leave/Vacation Tracker, a Help Desk, and more.

Basic Parts are meant to be plugged into a contain-many holder of a system you're building. Examples include Customers, Orders, Products, and similar. You can use the search feature at the left to locate the part that you need.