Describe a programming project or situation in the workplace that would lend itself to array usage?

A practical workplace example:

A company sells products. Every product is pictured before it is shipped.

The programming has parallel arrays. The array that stores the pictures has the picture number (which is sequential). It also has the product (order) number. The program (somehow) gets the time of the picture and stores it in the row. It also stores the date.

OrderNumber, PictureNumber, PictureTime, PictureDate

Another array has the customer data. Each order number appears in the customer data array. (I'm still new to this,) but the order number would be the key, right? It would be used to look up the picture and also to see the customers that ordered it (along with the other products ordered by those customers).

OrderNumber, LastName1, Picture1, LastName2, Picture2, …

Or, the customer last name could be the key in the array. The columns would be first names, address, phone number, and past orders. The array would be dynamic so it can store many order numbers.

LastName, FirstName1, FirstName2, Address, Phone, Order1, Order2, Order3, …

How's that sound? Who wants to refine it?