Property	Description
Custom Data Type	Used for specifications that are based on an X12 or EDIFACT standard. Only applies to if the structure type is delimited.
Custom Date/Time Format	Used for specifications that are based on an X12 or EDIFACT standard. Only applies to if the structure type is delimited.
Justification	For positional and delimited files. If set to Left, the data that is less than the maximum length is aligned left. If set to Right, the data is aligned right.
Pad Character	A character that will be used to pad blank spaces in a field.

The Dictionary Tab

The Dictionary tab is used to set up the properties for agreements. Agreements will be discussed in more detail in the section "BizTalk Management Desk" later in this chapter, but in simple terms, an agreement is used to define the rules for passing documents between two corporations. Using agreements, pipelines can be created that pass documents back and forth between two servers. (We will discuss pipelines in more detail later in this chapter.) The Dictionary tab defines the location of the agreement that is used for a field.

Dictionary Tab Field Properties

Property	Description
Source Type	Indicates the document instance value for the source type.
Source Value	Indicates the actual data in the document instance that will be used to validate a document. For example, an ID number.
Destination Type	Indicates whether the sender or receiver data located in the document instance will be used to validate the document.
Destination Value	Indicates whether the actual destination data in the document instance will be used to validate the actual document.
Document Type	Indicates that the document name in the document instance is to be used to validate the document.
Document Node	When using an envelope schema, the document node indicates the body record that will hold the actual document.
Version	Indicates the document version that will be used to validate the document.