@article{oai:ipsj.ixsq.nii.ac.jp:00059877, author = {Kiyoshi, Furuya and Yoshihiro, Tohma and Kiyoshi, Furuya and Yoshihiro, Tohma}, issue = {1}, journal = {Journal of Information Processing}, month = {Mar}, note = {Hakimi and Amin [2] gave necessary and sufficient conditions for identification of all faulty units in a system on the assumption that the tests are complete. We extend those theories to the case where even fault-free units may fail tests of faulty ones. We define a system to be (t r)-diagnosable if all faulty units can be identified from test outcomes provided the number of faulty units and that of test failures do not exceed t and r respectively. Similarly we define totally-・ヘdiagnosability where ・タrepresents the summation of them. We first give the necessary and sufficient condition for a system in which no two units test each other to be totally-・ヘdiagnosable. Then we extend the analysis to general case and give the condition for a system on which no such restriction is placed to be (t r)-diagnosable., Hakimi and Amin [2] gave necessary and sufficient conditions for identification of all faulty units in a system on the assumption that the tests are complete. We extend those theories to the case where even fault-free units may fail tests of faulty ones. We define a system to be (t,r)-diagnosable if all faulty units can be identified from test outcomes, provided the number of faulty units and that of test failures do not exceed t and r respectively. Similarly, we define totally-・ヘdiagnosability, where ・タrepresents the summation of them. We first give the necessary and sufficient condition for a system, in which no two units test each other, to be totally-・ヘdiagnosable. Then, we extend the analysis to general case, and give the condition for a system, on which no such restriction is placed, to be (t,r)-diagnosable.}, pages = {24--27}, title = {On Diagnosabilities of Systems with Incomplete Test}, volume = {8}, year = {1985} }