Before you create or edit a data field, decide whether to add it to a single-value category or a data table. To create and edit data fields in your project, go to Manage data fields and customize templates.
A single-value category is a group of single-value data fields. Each single-value data field can store only one user-entered value at a time, for example, a project leader or a due date. Some single-value data fields can have multiple options, for example, a project's status can be 'not started', 'in progress', or 'completed', but the data field can store only one status at a time. The following image shows examples of single-value data fields on a form.
A data table contains data fields that can have rows of values. For example, a project typically has several tasks and each task might have information about what it is, who it's assigned to, and when it's due. The following image shows an example of a data-entry table where data fields are the columns (Subject, Status, and Start Date) and the user-entered values are the rows.
If you have a group of closely-related data fields, then you can create a new single-value category or data table. For example, you might create a new data table called Vendor to categorize vendor-related data fields such as name, address, phone, contact, goods, services, and so on.