11.5 Transaction Mapping (Analysis)

	Similar to 'transform mapping', transaction analysis makes use of DFDs diagrams to establish the various
	transactions involved and producing a structure chart as a result.

Transaction mapping Steps:

Review the fundamental system model

Review and refine DFD for the SW

Assess the DFD in order to decide the usage of transform or transaction flow.

Identify the center of transaction and the flow characteristics along each action path

Find transaction center

Identify incoming path and isolate action paths

Evaluate each action path for transform vs. transaction characteristics

Map the DFD in a program structure agreeable to transaction processing

Carry out the 'factoring' process

Refine the first iteration program/ architecture using design heuristics for improved SW quality

11.5 Transaction Mapping (Analysis)

	In transaction mapping a single data item triggers one of a number of information flows that affect a function
	implied by the triggering data item.

The data item implies a transaction.