diff --git a/base/src/main/java/de/staropensource/sosengine/base/EngineConfiguration.java b/base/src/main/java/de/staropensource/sosengine/base/EngineConfiguration.java
index 767983c..3c9b78a 100644
--- a/base/src/main/java/de/staropensource/sosengine/base/EngineConfiguration.java
+++ b/base/src/main/java/de/staropensource/sosengine/base/EngineConfiguration.java
@@ -19,6 +19,7 @@
 
 package de.staropensource.sosengine.base;
 
+import de.staropensource.sosengine.base.classes.SubsystemConfiguration;
 import de.staropensource.sosengine.base.logging.Logger;
 import de.staropensource.sosengine.base.types.CodePart;
 import de.staropensource.sosengine.base.types.LogIssuer;
@@ -37,32 +38,12 @@ import java.util.Properties;
  */
 @SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
 @Getter
-public final class EngineConfiguration {
-    /**
-     * Instance.
-     *
-     * @since 1-alpha0
-     *
-     * -- GETTER --
-     * Returns the {@link EngineConfiguration} instance.
-     *
-     * @return {@link EngineConfiguration} instance
-     * @since 1-alpha0
-     */
+public final class EngineConfiguration implements SubsystemConfiguration {
+    /** {@inheritDoc} */
     @Getter
     private static EngineConfiguration instance;
 
-    /**
-     * Defines the group every property must start with to be recognized as an engine configuration setting.
-     *
-     * @since 1-alpha0
-     *
-     * -- GETTER --
-     * Returns the group every property must start with to be recognized as an engine configuration setting.
-     *
-     * @return the property group
-     * @since 1-alpha0
-     */
+    /** {@inheritDoc} */
     @Getter
     private static final String group = "sosengine.base.";
 
@@ -191,20 +172,13 @@ public final class EngineConfiguration {
         loadDefaultConfiguration();
     }
 
-    /**
-     * Loads the engine configuration from the specified {@link java.util.Properties}.<br/>
-     * Unless you want to allow configuration overriding, resetting the configuration using {@code loadDefaultConfiguration()} is advised.
-     *
-     * @param properties the {@link Properties} object
-     * @see EngineConfiguration#loadDefaultConfiguration()
-     * @since 1-alpha0
-     */
+    /** {@inheritDoc} */
     public void loadConfiguration(Properties properties) {
         // Define variables
         PropertyParser parser = new PropertyParser(properties);
 
         for (String property : properties.stringPropertyNames()) {
-            // Check if property name starts with "de.staropensource.sosengine.base."
+            // Check if property name starts with group
             if (!property.startsWith(group)) continue;
 
             // Skip to important stuff
@@ -238,24 +212,12 @@ public final class EngineConfiguration {
         }
     }
 
-    /**
-     * Loads the engine configuration from the system properties.
-     *
-     * @see EngineConfiguration#loadConfiguration(Properties) 
-     * @see System#getProperties()
-     * @since 1-alpha0
-     */
+    /** {@inheritDoc} */
     public void loadConfiguration() {
         loadConfiguration(System.getProperties());
     }
 
-    /**
-     * Loads the default engine configuration.
-     * 
-     * @see EngineConfiguration#loadConfiguration()
-     * @see EngineConfiguration#loadConfiguration(Properties)
-     * @since 1-alpha0
-     */
+    /** {@inheritDoc} */
     public void loadDefaultConfiguration() {
         debug = false;
         debugShortcodeConverter = false;
@@ -268,12 +230,7 @@ public final class EngineConfiguration {
         loggerForceStandardOutput = false;
     }
 
-    /**
-     * Returns a configuration setting.
-     *
-     * @param setting the setting name
-     * @return the setting's value or {@code null} if not found
-     */
+    /** {@inheritDoc} */
     @Nullable
     public Object getSetting(@NotNull String setting) {
         switch (setting) {
diff --git a/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemConfiguration.java b/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemConfiguration.java
new file mode 100644
index 0000000..d1aac4d
--- /dev/null
+++ b/base/src/main/java/de/staropensource/sosengine/base/classes/SubsystemConfiguration.java
@@ -0,0 +1,75 @@
+package de.staropensource.sosengine.base.classes;
+
+import org.jetbrains.annotations.NotNull;
+
+import java.util.Properties;
+
+/**
+ * Base class for subsystem configurations.
+ *
+ * @since 1-alpha0
+ */
+@SuppressWarnings({ "unused", "JavadocDeclaration", "JavadocBlankLines" })
+public interface SubsystemConfiguration {
+    /**
+     * Instance.
+     *
+     * @since 1-alpha0
+     *
+     * -- GETTER --
+     * Returns the {@link SubsystemConfiguration}-extending instance.
+     *
+     * @return {@link SubsystemConfiguration}-extending instance
+     * @since 1-alpha0
+     */
+    SubsystemConfiguration instance = null;
+
+    /**
+     * Defines the group every property must start with to be recognized as a subsystem configuration setting.
+     *
+     * @since 1-alpha0
+     *
+     * -- GETTER --
+     * Returns the group every property must start with to be recognized as a subsystem configuration setting.
+     *
+     * @return the property group
+     * @since 1-alpha0
+     */
+    String group = "sosengine.";
+
+    /**
+     * Loads the subsystem configuration from the specified {@link Properties}.<br/>
+     * Unless you want to allow configuration overriding, resetting the configuration using {@code loadDefaultConfiguration()} is advised.
+     *
+     * @param properties the {@link Properties} object
+     * @see SubsystemConfiguration#loadDefaultConfiguration()
+     * @since 1-alpha0
+     */
+    void loadConfiguration(Properties properties);
+
+    /**
+     * Loads the subsystem configuration from the system properties.
+     *
+     * @see SubsystemConfiguration#loadConfiguration(Properties)
+     * @see System#getProperties()
+     * @since 1-alpha0
+     */
+    void loadConfiguration();
+
+    /**
+     * Loads the default subsystem configuration.
+     *
+     * @see SubsystemConfiguration#loadConfiguration()
+     * @see SubsystemConfiguration#loadConfiguration(Properties)
+     * @since 1-alpha0
+     */
+    void loadDefaultConfiguration();
+
+    /**
+     * Returns a configuration setting.
+     *
+     * @param setting the setting name
+     * @return the setting's value or {@code null} if not found
+     */
+    Object getSetting(@NotNull String setting);
+}