You are building a new module to add extra functionality to the Magento application. What files are required?
You are working on a jewelry store that sells rings. Each ring allows an adjustment in size. The customer specifies finger size in inches and the merchant physically adjusts the stocked ring to the required size.
How is this represented in Magento?
You added a new constructor argument to an existing action controller class.
When you reload the page you get a PHP error that the wrong argument is passed to the class.
How do you fix this?
You are reviewing a Magento module and see a directory named Service.
What can you determine from this directory's name?
