Application-Level Requirements List
1. First the program should provide some information including the title, user instructions, and the overall purpose to better acquaint the user.2. The program display should be easy to use while inputting information.3. The purpose and instructions for the program must be apparent.4. Simplicity in the wording and outputs is important to avoid any possible confusion and make the program user friendly.5. Written in a fashion that allows further expansion by others at a later date.6. The program must be able to handle multiple conversion of currency at the same time or after one another without restarting the process.7. The ability to restart the program when a user has accomplished all they set out to do.
Hierarchy Chart
Design
Input and output process

Diagram Control Flow —-Main Control
Control Flow —Get_Int_ValueControl Flow Diagram—Convert Currency
Control Flow Diagram—-Main Control

Control Flow Diagram—Display MenuControl Flow Diagram—Get_Int_ValueControl Flow Diagram—Convert CurrencyControl Flow Diagram—Display ResultsInternational currency type (menu selection)

Pseudo Codes
Main module
Declare Nationality as string
Declare Currency Type as integer
Declare Currency Amount as real
Declare US Dollar as real…