In this chapter, you worked through the first two phases of application development: understanding the problem and designing a solution. You learned how to develop an application specification by interviewing users and examining the data and requirements, creating an optimal form layout for your users, and learned which widgets are available in Tkinter for dealing with different kinds of input data. Most importantly, you learned that developing an application doesn't begin with code, but with research and planning.
In the next chapter, you'll create a basic implementation of your designs with Tkinter and Python. We will get familiar with the Tkinter widgets required to create our form, build the form, and place the form within the application. We'll also learn how to make our form trigger callback actions and discover how to structure our code to ensure efficiency and consistency.