Engineering and Test Systems

Built-in test (BIT) provides fault finding as a means to aid in system assembly, test, and maintenance. An investigation to evaluate BIT of a particular electronics board used in the in-flight entertainment system for Boeing 777s is described. We found BIT proved useful when failure occurrences were uniquely associate…

A test sequence is given for the test access port (TAP) controller portion of the boundary-scan architecture proposed by the Joint Test Action Group (JTAG) and IEEE Working Group P1149.1 as an industry-standard design-for-testability technique. The resulting test sequence, generated by using a technique based on Rural…

Various terms such as ‘cannot duplicate (CND)’, ‘re-test OK (RTOK)’, ‘no fault indicated (NFI)’, ‘no fault found (NFF)’, and ‘no trouble found (NTF)’, are used to describe the inability to replicate field failures during laboratory assessment. This paper uses CND to refer to all such failures. CND failures can make up…

The problem of generating the sequence of tests required to reach a diagnostic conclusion with minimum average cost, which is also known as a test-sequencing problem, is considered. The traditional test-sequencing problem is generalized here to include asymmetrical tests. In general, the next test to execute depends o…

• TONGUÇ ÜNLÜYURT

The problem of generating the sequence of tests required to reach a diagnostic conclusion with minimum average cost, which is also known as a test-sequencing problem, is considered. The traditional test-sequencing problem is generalized here to include asymmetrical tests. In general, the next test to execute depends o…

• ÖMER ERHUN KUNDAKCIOĞLU

The hub location problem (HLP) is one of the strategic planning problems encountered in different contexts such as supply chain management, passenger and cargo transportation industries, and telecommunications.In this paper, we consider a reliable uncapacitated multiple allocation hub location problem under hub disrup…

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After nearly a century of specialized applications in optics, remote sensing, and acoustics, the near-field (NF) electromagnetic (EM) propagation zone is experiencing a resurgence in research interest. This renewed attention is fueled by the emergence of promising applications in various fields, such as wireless commu…

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• BÜLENT ÇATAY

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As the complexity of modern avionics system increases, the safety becomes the most critical aspect for both the military and civil aviation applications. Therefore, every hardware which will be developed for any aircraft must be designed with the compliance of DO-254 processes. In this paper, the compliance of DO-254…