The following will explore the relationship between an item, item category, modifier group, and item modifier.
Table of Contents
Overall explanation of each terms
There are five types of available menus: item, item category, item options, item modifier and modifier group.
‘Item’ is a menu of individual items; ‘item category’ is the classification to which an item belongs; ‘item options’ are variations such as color and size for an item; ‘item modifier’ includes a selection of additions such as toppings; the ‘modifier group’ is the group to which an item modifier belongs.
The relationship between item and item category （many to one）
An item can be classified and managed within ‘item category’. On the other hand, one item can only be associated with a single item category.
Eg. Item category ‘A’ contains several items (item 1, 2 and 3) but only item 1 belongs to category ‘A’ (and no other item categories).
The relationship between item modifier and Modifier Group（many to one）
Within the ‘modifier group’, you can classify and manage item modifiers. On the other hand, one item modifier can only be associated with a single modifier group.
E.g. Milk (modifier group ‘b’) has many types of milk (Almond, Soy and Whole), but ‘Almond’ can only belong to Milk (modifier group ‘b’, and no other modifier groups).
The relationship between item and Modifier Group（many to many）
One item can be associated with many modifier groups. Also, one modifier group can be associated with many items.
E.g. Item 3 can be associated with several modifier groups (a and b), and modifier group ‘a’ can be associated with several items (items 1, 2, and so on).
Add from item list
Additionally, you can also register an existing item with one item modifier. For example, you can register a Coke (the item) with item modifier ‘Lunch Special Drink’ from a modifier group.