Australian Government Architecture Reference Models Version 3.0

Term Definition
Exchange Package
An Exchange Package is a description of a specific recurring data exchange
between a Supplier and a Consumer. An Exchange Package contains
information (metadata) relating to the exchange (such as Supplier ID, Consumer
ID, validity period for data, etc.), as well as a reference to the Payload (message
content) for the exchange. An Exchange Package can also be used to define the
result format for a query that is accepted and processed by a Query Point in a
data sharing scenario.
Relationships:
� An Exchange Package refers to an Entity.
� An Exchange Package is disseminated to a Consumer.
� An Exchange Package queries a Query Point.
� An Exchange Package refers to a Payload Definition.
Example: an Exchange Package describes a specific recurring data exchange
involving shipment information.
Entity See the Data Description chapter.
Supplier
Consumer
Payload Definition
Query Point
A Supplier is an entity (person or organisation) that supplies data to a Consumer.
Relationships:
� A Supplier produces an Exchange Package.
Example: a federal agency that supplies data to one or more other federal
agencies.
A Consumer is an entity (person or organisation) that consumes data that is
supplied by a Supplier.
Relationships:
� none
Example: an Australian Government agency that consumes data from one or
more other Australian Government agencies.
A Payload Definition is an electronic definition that defines the requirements for
the Payload (data) that is exchanged between a Supplier and a Consumer.
Relationships:
� none
Example: A specific message set expressed as an XML schema or an EDI
transaction set that contains information about a ‘Person’ entity.
A Query Point is an endpoint that provides an interface for accessing and
querying a Data Asset. A concrete representation of a Query Point may be a
specific URL at which a query Web Service may be invoked.
Relationships:
Data Asset See the Data Context section.
� A Query Point accesses a Data Asset. Example: a specific URL at
which a data service may be invoked.
� A Query Point returns a result set specified in an Exchange Package.
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