Answer:
1. Identify the application’s purpose.
2. Identify the items that the user must provide.
3. Identify the items that the application must provide.
4. Determine how the user and the application will provide their respective items.
5. Draw a sketch of the user interface.
Step-by-step explanation:
There are five steps to plan a windows forms application, mentioned above in the proper order. First of all, the purpose of the application has been identified. Then, inputs of the form from user and output of the form will be identified. Then it has been identified that, how the inputs and output, will be provided. In last, user interface will be drawn.