Tutorial #1: Develop an App
For this workbook you need two organizations, one for development, and one for testing. In a real-world scenario, you would have additional organizations for sales (publishing and licensing), public demos, and possibly many more for development and testing. But let's keep it simple for now, two organizations are enough to show the typical lifecycle. If you're familiar with Salesforce, you know that an organization, or org for short, is a cloud unto itself. If you're new to Salesforce, then you can think of an organization as a separate environment where you might develop, test, or publish your app.
After you get your organizations, you'll create a simple Warehouse application to keep track of merchandise. This is a simplified version of the Warehouse application created in the Force.com Workbook.