Naval Air Warfare Center Aircraft Division, Contracts Department, Building 129-2, Highway 547, Lakehurst, NJ 08733-5083

R -- SERVICES TO CREATE A PROTOTYPE/DEMONSTRATOR- NEXT GENERATION TEST GENERATOR SOL N68335-00-R-0398 DUE 060200 POC Mrs. Joyce Discenza, Code 25221JD, (732) 323-2148 (Fax: 732-323-7531) E-MAIL: N68335-00-R-0398, Discenzajm@navair.navy.mil. The Naval Air Warfare Center Aircraft Division, Lakehurst, N.J. intends to procure services to create a prototype and demonstrator for the Next Generation Test Generator (NGTG). The NGTG is an automatic test generator algorithmic process developed at NAWC Lakehurst for complex electronic Units Under Test (UUTs). The process is a controlled search strategy that automates the development of efficient test sequences and maximizes diagnostic capabilities. The process consists of Test Proposer, Test Evaluator, timing and data structure control, and model / simulation of UUT. Components that will transfer with data to automatic test equipment or embedded diagnostic systems include, final test sequence, timing and data structure control information (attributes), and Virtual Adaptive Real Time Diagnostic Classifier (VARD) component. VARD was the component known as the test evaluator in the NGTG search methodology. VARD is a data fusion process that employs a fuzzy neural system known as, Fuzzy Adaptive Resonance Theory (Fuzzy ART). The NGTG is a stochastic search loop that is based on Genetic Algorithms (GA) that generates a population of proposed test sequences. Each test sequence, which consists of an individual row in the population, is presented to the simulation of the UUT (good and fault models) separately as test pattern at a time after the UUT is initialized with an initialization sequence. Each test pattern consists of a set of inputs that are inserted to a single pin in the UUT. The evaluation of the test is based on VARD and any industry accepted circuit simulator(s) to simulate good and faulty UUTs. VARD is composed of Fuzzy ART components. There is a Fuzzy ART for each analog output pin with separate acceptance limits. A preprocessing loop will be provided to adjust the Fuzzy ART parameter to generalize the Neural Network for different specification limits defined by the design criteria of the UUT. The NGTG will operate on digital, analog and mixed signal UUTs. To compensate for the slew rates and time constants, the ability to control time of test vector application must be assured. The good and faulty UUT models may reside on third party computers at remote sites. Hence the ability to send test vector candidates to these remotely ran models through the web must be provided. The responses from these circuits must be sent back to the NGTG for further evaluation and subsequent optimization. The prototype must be a flexible test generating system based on Active-X controls to allow a test developer to incorporate custom built programs in C/C++ using Microsoft C/C++ compiler. The NGTG must be based on Object Oriented Programming Principles. The NGTG source code shall be provided as a deliverable. The code shall have extensive comments to assure internal documentation explaining all variables, flags, and short description of functions and algorithms. Commercial quality user manuals shall be provided as the external documentation. This documentation shall have sufficient explanation of how to set up NGTG run with different options for modeling. Also it shall explain how to set up "run" parameters for GA, Fuzzy ART and simulations. The duration of this contract is six (6) months from the time of award. The Government intends to negotiate with Probus Test Systems of Howell, N.J. for these services, as a result of their specialized experience. See Note 22. Posted 05/19/00 (W-SN456453). (0140)

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