This module is a great place to "start" if you are unfamiliar with creating digital artifacts. This OER module walks through the basics of three differing kinds of digital artifacts and their creation process.
The purpose of backward design is to help educators plan instruction with the end goals in mind, rather than starting with content. This approach is also known as "purpose-driven teaching". This website's general breakdown of backward design can help guide anyone through the process of applying this approach to their design process.