6.3. Building out the Product Inventory application

You’re ready to create the Product Inventory application for Brent’s Super Store. To track product inventory the application will consist of a table view that displays all products and their property values. Users can edit properties in the table view, and the application notifies them when a product is out of stock. Although a barebones application it’ll be just what the employees of Brent’s Super Store need at the moment, and you’ll get to practice using KVC and KVO.

6.3.1. Creating the user interface

Let’s get started. Open Xcode and create a new MacRuby application named Product Inventory. Then follow these steps: