The dynamic reasoner allows for embedding of eXpress diagnostics within an application. The main difference between this and the eXpress Embedded Reasoner is that the eXpress Embedded Reasoner uses the pre-calculated diagnostics sequences from eXpress, whereas the dynamic reasoner calculates the diagnostics on-the-fly as tests are performed. This allows for out-of-order testing were when some test cannot be immediately performed due to system conditions, lack of equipment or training then the dynamic reasoner will prompt for alternative tests to isolate the failures.
Development/Data Process Flow
Dynamic diagnostics are developed by creating a functional dependency model in eXpress. A dynamic diagnostic design file is then generated and configured within eXpress for use by the Dynamic Reasoner. The dynamic reasoner communicates with DSI Workbench or an integrated health management system using message queues to receive system status from and send a diagnosis to the integrated health management system. The integrated health management system by querying the reasoner can then either provided a fault code to the Analyst to assist in manual troubleshooting using an integrated electronic technical manual (IETM) or by providing direct repair instructions to the health management system Analyst.
