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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 189px; height: 1px; padding-top: 394px; margin-left: 560px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left; max-height: 26px; overflow: hidden;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><b>IEC 60335</b> - Household appliances</div></div></div></foreignObject><text x="560" y="398" fill="rgb(0, 0, 0)" font-family="&quot;Helvetica&quot;" font-size="12px">IEC 60335 - Household appliances</text></switch></g></g></g><g data-cell-id="ubt_klcrSJmbAtkwjw60-11"><g><rect x="554" y="409" width="199" height="30" fill="none" stroke="none" pointer-events="all"/></g><g><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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text-align: left;"><div xmlns="http://www.w3.org/1999/xhtml" style="display: flex; align-items: unsafe center; justify-content: unsafe flex-start; width: 130px; height: 1px; padding-top: 383px; margin-left: 67px;"><div data-drawio-colors="color: rgb(0, 0, 0); " style="box-sizing: border-box; font-size: 0px; text-align: left; max-height: 26px; overflow: hidden;"><div style="display: inline-block; font-size: 12px; font-family: Helvetica; color: rgb(0, 0, 0); line-height: 1.2; pointer-events: all; white-space: normal; overflow-wrap: normal;"><b>EN 81 / EN 115</b> - Lifts</div></div></div></foreignObject><text x="67" y="387" fill="rgb(0, 0, 0)" font-family="&quot;Helvetica&quot;" font-size="12px">EN 81 / EN 115 - Lifts</text></switch></g></g></g></g><g data-cell-id="ubt_klcrSJmbAtkwjw60-21"><g><path d="M 481 40 L 481 23.5 Q 481 10 467.5 10 L 280.5 10 Q 267 10 267 23.5 L 267 40" fill="#dae8fc" stroke="#6c8ebf" stroke-miterlimit="10" pointer-events="all"/><path d="M 267 40 L 267 146.5 Q 267 160 280.5 160 L 467.5 160 Q 481 160 481 146.5 L 481 40" fill="none" stroke="#6c8ebf" stroke-miterlimit="10" pointer-events="none"/><path d="M 267 40 L 481 40" fill="none" stroke="#6c8ebf" stroke-miterlimit="10" pointer-events="none"/></g><g><g transform="translate(-0.5 -0.5)"><switch><foreignObject pointer-events="none" width="100%" height="100%" requiredFeatures="http://www.w3.org/TR/SVG11/feature#Extensibility" style="overflow: visible; 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\ No newline at end of file
diff --git a/doc/safety/safety_overview.rst b/doc/safety/safety_overview.rst
index 39a9da169df..d3e907f340d 100644
--- a/doc/safety/safety_overview.rst
+++ b/doc/safety/safety_overview.rst
@@ -85,6 +85,24 @@ implementation of safety-related systems that aims to reduce the risk of acciden
 overall safety. By following the standard, organizations can ensure that their safety-related
 systems are designed and implemented to the highest level of safety integrity.
 
+Why IEC 61508?
+==============
+The IEC 61508 standard was selected because it serves as a foundational functional safety standard
+applicable across various industry sectors. It provides a robust framework that can be used as
+base for specific standards for different industries. This makes IEC 61508 particularly relevant
+for Zephyr, as the operating system's versatility allows it to be effectively utilized across a
+wide range of industry sectors.
+
+The following diagram illustrates the relationship between the IEC 61508 standard and other related
+standards:
+
+.. figure:: images/IEC-61508-basis.svg
+   :align: center
+   :alt: IEC 61508 relation to other standards
+   :figclass: align-center
+
+   IEC 61508 relation to other standards
+
 Quality
 *******