The Force.com Workbook shows you how to create an application in a series of tutorials. While you can use the Force.com platform to build virtually any kind of application, most applications share certain characteristics such as:
¥ A database to model the information in the application
¥ Business logic and workflow to carry out particular tasks under certain conditions
¥ A user interface to expose data and functionality to those logged in to your application
¥ A public website to show data and functionality on the Web