diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/Filterer.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/Filterer.kt
index c194d00..cd8dc64 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/Filterer.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/Filterer.kt
@@ -20,7 +20,7 @@
 
 package de.staropensource.engine.logging
 
-import de.staropensource.engine.logging.type.Filter
+import de.staropensource.engine.logging.implementable.Filter
 import de.staropensource.engine.logging.type.Call
 
 /**
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/LoggerConfiguration.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/LoggerConfiguration.kt
index 14a5fd2..92216a9 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/LoggerConfiguration.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/LoggerConfiguration.kt
@@ -23,7 +23,7 @@ package de.staropensource.engine.logging
 import de.staropensource.engine.logging.implementation.SOSLSv2FormatBuilder
 import de.staropensource.engine.logging.type.ChannelSettings
 import de.staropensource.engine.logging.type.Feature
-import de.staropensource.engine.logging.type.FormatBuilder
+import de.staropensource.engine.logging.implementable.FormatBuilder
 import de.staropensource.engine.logging.type.Level
 import de.staropensource.engine.logging.type.OperationMode
 import kotlinx.datetime.TimeZone
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/Processor.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/Processor.kt
index 61166a1..4c6f0b6 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/Processor.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/Processor.kt
@@ -26,7 +26,7 @@ import de.staropensource.engine.logging.implementation.SOSLSv2FormatBuilder
 import de.staropensource.engine.logging.type.Call
 import de.staropensource.engine.logging.type.ChannelSettings
 import de.staropensource.engine.logging.type.Feature
-import de.staropensource.engine.logging.type.FormatBuilder
+import de.staropensource.engine.logging.implementable.FormatBuilder
 import de.staropensource.engine.logging.type.OperationMode
 import kotlin.reflect.full.primaryConstructor
 
@@ -75,8 +75,8 @@ class Processor private constructor() {
          * following steps:
          * 1. build the log format
          * 2. update message
-         * 3. format the finalized format using the configured [de.staropensource.engine.logging.type.Formatter]
-         * 4. pass the finalized format to the configured [de.staropensource.engine.logging.type.Adapter].
+         * 3. format the finalized format using the configured [de.staropensource.engine.logging.implementable.Formatter]
+         * 4. pass the finalized format to the configured [de.staropensource.engine.logging.implementable.Adapter].
          *
          * Invoked by the configured
          * [ThreadingHandler].
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/Adapter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Adapter.kt
similarity index 86%
rename from logging/src/main/kotlin/de/staropensource/engine/logging/type/Adapter.kt
rename to logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Adapter.kt
index 3142268..d19a442 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/Adapter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Adapter.kt
@@ -18,7 +18,9 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.staropensource.engine.logging.type
+package de.staropensource.engine.logging.implementable
+
+import de.staropensource.engine.logging.type.Call
 
 /**
  * Handles processed log calls.
@@ -29,7 +31,7 @@ interface Adapter {
     /**
      * Handles the processed log call.
      *
-     * @param call   original [Call]
+     * @param call   original [de.staropensource.engine.logging.type.Call]
      * @param format finalized log format (print this!)
      * @since v1-alpha10
      */
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/Filter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Filter.kt
similarity index 92%
rename from logging/src/main/kotlin/de/staropensource/engine/logging/type/Filter.kt
rename to logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Filter.kt
index ff73174..e51bc4b 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/Filter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Filter.kt
@@ -18,7 +18,9 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.staropensource.engine.logging.type
+package de.staropensource.engine.logging.implementable
+
+import de.staropensource.engine.logging.type.Call
 
 /**
  * Provides methods for filtering log calls.
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/FormatBuilder.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/FormatBuilder.kt
new file mode 100644
index 0000000..bef69a8
--- /dev/null
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/FormatBuilder.kt
@@ -0,0 +1,84 @@
+/*
+ * STAROPENSOURCE ENGINE SOURCE FILE
+ * Copyright (c) 2024 The StarOpenSource Engine Authors
+ * Licensed under the GNU Affero General Public License v3
+ * with an exception allowing classpath linking.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.staropensource.engine.logging.implementable
+
+import de.staropensource.engine.logging.type.Call
+import de.staropensource.engine.logging.type.Feature
+
+/**
+ * Builds log formats.
+ *
+ * @param call [de.staropensource.engine.logging.type.Call] to build a format for
+ * @since v1-alpha10
+ */
+abstract class FormatBuilder(protected val call: Call) {
+    /**
+     * Contains all enabled features.
+     *
+     * @since v1-alpha10
+     */
+    protected val enabledFeatures: MutableSet<Feature> = mutableSetOf<Feature>()
+
+    /**
+     * Contains the message.
+     *
+     * @since v1-alpha10
+     */
+    var message: String = "no message has been defined, this is a bug"
+
+    /**
+     * Returns a set of all enabled enabledFeatures.
+     *
+     * @return set of enabled enabledFeatures
+     * @since v1-alpha10
+     */
+    fun getFeatures(): Set<Feature> {
+        return enabledFeatures.toSet()
+    }
+
+    /**
+     * Adds the specified feature to the format.
+     *
+     * @param feature feature to add
+     * @since v1-alpha10
+     */
+    fun addFeature(feature: Feature) {
+        enabledFeatures.add(feature)
+    }
+
+    /**
+     * Removes the specified feature from the format.
+     *
+     * @param feature feature to remove
+     * @since v1-alpha10
+     */
+    fun removeFeature(feature: Feature) {
+        enabledFeatures.remove(feature)
+    }
+
+    /**
+     * Returns the finalized format.
+     *
+     * @return finalized format
+     * @since v1-alpha10
+     */
+    abstract override fun toString(): String
+}
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/Formatter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Formatter.kt
similarity index 97%
rename from logging/src/main/kotlin/de/staropensource/engine/logging/type/Formatter.kt
rename to logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Formatter.kt
index f0040f4..1a67f05 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/Formatter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/Formatter.kt
@@ -18,7 +18,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.staropensource.engine.logging.type
+package de.staropensource.engine.logging.implementable
 
 /**
  * Provides log format formatting.
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/OneCycleFormatter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/OneCycleFormatter.kt
similarity index 97%
rename from logging/src/main/kotlin/de/staropensource/engine/logging/type/OneCycleFormatter.kt
rename to logging/src/main/kotlin/de/staropensource/engine/logging/implementable/OneCycleFormatter.kt
index 848f15b..7fe638f 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/OneCycleFormatter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/OneCycleFormatter.kt
@@ -18,7 +18,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.staropensource.engine.logging.type
+package de.staropensource.engine.logging.implementable
 
 /**
  * Performs message formatting in one cycle.
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/TwoCycleFormatter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/TwoCycleFormatter.kt
similarity index 97%
rename from logging/src/main/kotlin/de/staropensource/engine/logging/type/TwoCycleFormatter.kt
rename to logging/src/main/kotlin/de/staropensource/engine/logging/implementable/TwoCycleFormatter.kt
index 2a28894..c7f6546 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/TwoCycleFormatter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/TwoCycleFormatter.kt
@@ -18,7 +18,7 @@
  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
  */
 
-package de.staropensource.engine.logging.type
+package de.staropensource.engine.logging.implementable
 
 /**
  * Performs message formatting in two cycles.
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/package-info.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/package-info.kt
new file mode 100644
index 0000000..bcdf4ec
--- /dev/null
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementable/package-info.kt
@@ -0,0 +1,26 @@
+/*
+ * STAROPENSOURCE ENGINE SOURCE FILE
+ * Copyright (c) 2024 The StarOpenSource Engine Authors
+ * Licensed under the GNU Affero General Public License v3
+ * with an exception allowing classpath linking.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+/**
+ * Interfaces and abstract classes.
+ *
+ * @since v1-alpha10
+ */
+package de.staropensource.engine.logging.implementable
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/NoOperationFormatter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/NoOperationFormatter.kt
index d3d37d4..79eba3f 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/NoOperationFormatter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/NoOperationFormatter.kt
@@ -20,7 +20,7 @@
 
 package de.staropensource.engine.logging.implementation
 
-import de.staropensource.engine.logging.type.OneCycleFormatter
+import de.staropensource.engine.logging.implementable.OneCycleFormatter
 
 /**
  * Swallows all formatting tags
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/PrintlnAdapter.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/PrintlnAdapter.kt
index 39291c9..1c8a12f 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/PrintlnAdapter.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/PrintlnAdapter.kt
@@ -20,7 +20,7 @@
 
 package de.staropensource.engine.logging.implementation
 
-import de.staropensource.engine.logging.type.Adapter
+import de.staropensource.engine.logging.implementable.Adapter
 import de.staropensource.engine.logging.type.Call
 
 /**
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/SOSLSv2FormatBuilder.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/SOSLSv2FormatBuilder.kt
index da6df9f..304fc9e 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/SOSLSv2FormatBuilder.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/SOSLSv2FormatBuilder.kt
@@ -24,7 +24,7 @@ import de.staropensource.engine.logging.Logger
 import de.staropensource.engine.logging.LoggerConfiguration
 import de.staropensource.engine.logging.type.Call
 import de.staropensource.engine.logging.type.Feature
-import de.staropensource.engine.logging.type.FormatBuilder
+import de.staropensource.engine.logging.implementable.FormatBuilder
 import de.staropensource.engine.logging.type.Level
 import kotlinx.datetime.Clock
 import kotlinx.datetime.LocalDateTime
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/TwoCycleFormatterImpl.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/TwoCycleFormatterImpl.kt
index 015b746..5bf7407 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/TwoCycleFormatterImpl.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/implementation/TwoCycleFormatterImpl.kt
@@ -20,7 +20,7 @@
 
 package de.staropensource.engine.logging.implementation
 
-import de.staropensource.engine.logging.type.TwoCycleFormatter
+import de.staropensource.engine.logging.implementable.TwoCycleFormatter
 
 /**
  * A [TwoCycleFormatter] implementation providing
@@ -40,7 +40,7 @@ import de.staropensource.engine.logging.type.TwoCycleFormatter
  * - `ATTRIBUTE:` (example `ATTRIBUTE:BOLD`)
  *
  * @see TwoCycleFormatter
- * @see de.staropensource.engine.logging.type.Formatter
+ * @see de.staropensource.engine.logging.implementable.Formatter
  * @since v1-alpha10
  */
 abstract class TwoCycleFormatterImpl: TwoCycleFormatter() {
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/ChannelSettings.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/type/ChannelSettings.kt
index 80a962b..469cbd9 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/ChannelSettings.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/type/ChannelSettings.kt
@@ -1,5 +1,7 @@
 package de.staropensource.engine.logging.type
 
+import de.staropensource.engine.logging.implementable.Adapter
+import de.staropensource.engine.logging.implementable.Formatter
 import de.staropensource.engine.logging.implementation.NoOperationFormatter
 import de.staropensource.engine.logging.implementation.PrintlnAdapter
 
diff --git a/logging/src/main/kotlin/de/staropensource/engine/logging/type/FormatBuilder.kt b/logging/src/main/kotlin/de/staropensource/engine/logging/type/FormatBuilder.kt
index 1f7cc1d..978735d 100644
--- a/logging/src/main/kotlin/de/staropensource/engine/logging/type/FormatBuilder.kt
+++ b/logging/src/main/kotlin/de/staropensource/engine/logging/type/FormatBuilder.kt
@@ -20,62 +20,3 @@
 
 package de.staropensource.engine.logging.type
 
-/**
- * Builds log formats.
- *
- * @param call [Call] to build a format for
- * @since v1-alpha10
- */
-abstract class FormatBuilder(protected val call: Call) {
-    /**
-     * Contains all enabled features.
-     *
-     * @since v1-alpha10
-     */
-    protected val enabledFeatures: MutableSet<Feature> = mutableSetOf<Feature>()
-
-    /**
-     * Contains the message.
-     *
-     * @since v1-alpha10
-     */
-    var message: String = "no message has been defined, this is a bug"
-
-    /**
-     * Returns a set of all enabled enabledFeatures.
-     *
-     * @return set of enabled enabledFeatures
-     * @since v1-alpha10
-     */
-    fun getFeatures(): Set<Feature> {
-        return enabledFeatures.toSet()
-    }
-
-    /**
-     * Adds the specified feature to the format.
-     *
-     * @param feature feature to add
-     * @since v1-alpha10
-     */
-    fun addFeature(feature: Feature) {
-        enabledFeatures.add(feature)
-    }
-
-    /**
-     * Removes the specified feature from the format.
-     *
-     * @param feature feature to remove
-     * @since v1-alpha10
-     */
-    fun removeFeature(feature: Feature) {
-        enabledFeatures.remove(feature)
-    }
-
-    /**
-     * Returns the finalized format.
-     *
-     * @return finalized format
-     * @since v1-alpha10
-     */
-    abstract override fun toString(): String
-}