select the transactional model
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Answer:
From Wikipedia, the free encyclopedia. Transactional model, generally speaking, refers to a model in which interactions in two directions are considered together, for example from one person to another and back, or from one subsystem to another and back.
Answer:
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Explanation:
The transactional model describes the way in which you can use transactions in message flows to accomplish certain tasks and results.
A message flow consists of the following constituent parts:
An input source
The message flow or logic, which is defined by a sequence of nodes
Zero or more external resources that are accessed during the flow
Zero or more output targets
The following steps represent a typical sequence of events in the message flow transaction:
A message is taken from the input source; for example, a queue.
Data is read from or written to one or more external resources; for example, a database.
A message is sent to an output target; for example, a queue.
The system quiesces and waits for the next input message.
During this sequence of events, the state of the data in the system changes, regardless of the number of external resources that the message flow accesses, and whether it generates an output message.