3.6.2 Types of Fields

There are three types of fields in most screens:

• Mandatory fields
• Optional fields
• Conditional fields

• Mandatory Fields
  Of the many fields in a screen, the inputs to some may be mandatory. This means that you cannot save the record without giving a valid input in such fields.
• Optional Fields
  
• Conditional Fields
  
• Option lists
  Values for certain fields are selected from an option list. The option list contains valid values for the field.