First, open Visual Studio and create a new project.
Call this project “AccountingService”.
Then, add a project called “AccountingProcessor”
Next, add another project and call it “AccountServicesUnitTests”
And finally one last project to contain your business objects called “AccountingCommon”
With iteration one, we want to create a simple program to add two numbers together.
The AccountingService will be called with two parameters, a and b.