On Three Competing Maintenance Actions and the Related Condition Control

<table class="table-group" id="tab1"><tr><td><table class="table"><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr class="thead"><td align="left">If condition</td><td align="center">Time to maintenance</td><td align="center">Terminating action</td></tr><tr><td class="thead-hr" colspan="3"><hr/></td></tr><tr><td align="left"><svg height="10.7" id="M17" style="vertical-align:-0.30096pt" version="1.1" viewbox="0 0 43.349998 10.7" width="43.349998" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.7)">
<g transform="translate(72,-63.44)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑋</tspan>
<tspan style="font-size: 12.50px; " x="13.340701" y="0">&lt;</tspan>
<tspan style="font-size: 12.50px; " x="25.38109" y="0">𝑌</tspan>
</text>
</g>
</g>
</svg> &amp; <svg height="10.7" id="M18" style="vertical-align:-0.30096pt" version="1.1" viewbox="0 0 46.912498 10.7" width="46.912498" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.7)">
<g transform="translate(72,-63.44)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑋</tspan>
<tspan style="font-size: 12.50px; " x="13.340701" y="0">&lt;</tspan>
<tspan style="font-size: 12.50px; " x="25.38109" y="0">𝐻</tspan>
</text>
</g>
</g>
</svg></td><td align="center"><span style="width: 13.4125px;"><svg height="10.325" id="M19" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 13.4125 10.325" width="13.4125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.325)">
<g transform="translate(72,-63.74)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑋</tspan>
</text>
</g>
</g>
</svg></span></td><td align="center">CM</td></tr><tr><td align="left"><svg height="11.9375" id="M20" style="vertical-align:-1.29163pt" version="1.1" viewbox="0 0 41.162498 11.9375" width="41.162498" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.9375)">
<g transform="translate(72,-62.45)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑌</tspan>
<tspan style="font-size: 12.50px; " x="10.152436" y="0">≤</tspan>
<tspan style="font-size: 12.50px; " x="22.192825" y="0">𝑋</tspan>
</text>
</g>
</g>
</svg> &amp; <svg height="10.7" id="M21" style="vertical-align:-0.30096pt" version="1.1" viewbox="0 0 42.924999 10.7" width="42.924999" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.7)">
<g transform="translate(72,-63.44)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑌</tspan>
<tspan style="font-size: 12.50px; " x="10.152436" y="0">&lt;</tspan>
<tspan style="font-size: 12.50px; " x="22.192825" y="0">𝐻</tspan>
</text>
</g>
</g>
</svg></td><td align="center"><span style="width: 11.6125px;"><svg height="10.325" id="M22" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 11.6125 10.325" width="11.6125" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.325)">
<g transform="translate(72,-63.74)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝑌</tspan>
</text>
</g>
</g>
</svg></span></td><td align="center">PM</td></tr><tr><td align="left"><svg height="11.9375" id="M23" style="vertical-align:-1.29163pt" version="1.1" viewbox="0 0 46.4375 11.9375" width="46.4375" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.9375)">
<g transform="translate(72,-62.45)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐻</tspan>
<tspan style="font-size: 12.50px; " x="14.37845" y="0">≤</tspan>
<tspan style="font-size: 12.50px; " x="26.418839" y="0">𝑋</tspan>
</text>
</g>
</g>
</svg> &amp; <svg height="11.9375" id="M24" style="vertical-align:-1.29163pt" version="1.1" viewbox="0 0 44.650002 11.9375" width="44.650002" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,11.9375)">
<g transform="translate(72,-62.45)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐻</tspan>
<tspan style="font-size: 12.50px; " x="14.37845" y="0">≤</tspan>
<tspan style="font-size: 12.50px; " x="26.418839" y="0">𝑌</tspan>
</text>
</g>
</g>
</svg></td><td align="center"><span style="width: 15.175px;"><svg height="10.325" id="M25" style="vertical-align:-0.0pt" version="1.1" viewbox="0 0 15.175 10.325" width="15.175" xmlns="http://www.w3.org/2000/svg">
<g transform="matrix(1.25,0,0,-1.25,0,10.325)">
<g transform="translate(72,-63.74)">
<text transform="matrix(1,0,0,-1,-71.95,63.79)">
<tspan style="font-size: 12.50px; " x="0" y="0">𝐻</tspan>
</text>
</g>
</g>
</svg></span></td><td align="center">SM</td></tr><tr class="table-tr"><td colspan="3"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

Alternative realizations of a service sojourn.

Journal of Quality and Reliability Engineering

tab1

Table 1

Table 1: On Three Competing Maintenance Actions and the Related Condition Control 