Automated system testability assessment method

Details Automated system testability assessment method Automated system testability assessment method

1989-03-14

1990-11-13

Atkinson, Charles E.

Excavating

36455101, 364200, G06F 1500, G06F 1100

Patent

active

049707256

ABSTRACT:
A procedure for calculating maintainability and testability parameters of a complex system uses computer software to enable the calculations to be made repeatedly during the development of the system. Failure modes and failure rates, elemental task times and test path data from a branching test flow diagram are input. Screens which identify the data to be input are displayed for ease of data entry. A hierarchical relationship between the modules in the system can be entered so that failure modes and failure rates need only be entered for lowest level modules. The procedure iteratively calculates maintainability and testability parameters starting at the lowest level and using previously calculated data in the next highest level. Fault isolation ambiguity is automatically taken into account by ordering the modules in descending order of total test path/module failure rate isolated by each test path. The ordered data are used in many of the calculations of the maintainability and testability parameters.

REFERENCES:
patent: 4649515 (1987-03-01), Thompson et al.
patent: 4841456 (1989-06-01), Hogan, Jr. et al.
patent: 4866635 (1989-09-01), Kahn et al.

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