diff --git a/src/main/kotlin/entity/environment/EnvironmentData.kt b/src/main/kotlin/entity/environment/EnvironmentData.kt
new file mode 100644
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+++ b/src/main/kotlin/entity/environment/EnvironmentData.kt
@@ -0,0 +1,64 @@
+/*
+ * Copyright (c) 2023. Smart Operating Block
+ *
+ * Use of this source code is governed by an MIT-style
+ * license that can be found in the LICENSE file or at
+ * https://opensource.org/licenses/MIT.
+ */
+
+package entity.environment
+
+/**
+ * Module that contains all the data useful to describe an environment.
+ */
+object EnvironmentData {
+
+    /**
+     * Temperature concept.
+     * It is described by the current temperature [value] expressed in a [unit].
+     */
+    data class Temperature(val value: Double, val unit: TemperatureUnit = TemperatureUnit.CELSIUS)
+
+    /**
+     * This enum describe the possible [Temperature] unit of measurement.
+     */
+    enum class TemperatureUnit {
+        /**
+         * Celsius unit.
+         */
+        CELSIUS
+    }
+
+    /**
+     * Humidity concept.
+     * It is described by the current [percentage] of humidity. So it describes the Relative Humidity.
+     */
+    data class Humidity(val percentage: Double)
+
+    /**
+     * Luminosity concept.
+     * It is described by the current luminosity [value] expressed in a [unit].
+     */
+    data class Luminosity(val value: Double, val unit: LightUnit = LightUnit.LUX) {
+        init {
+            // Constructor validation
+            require(this.value >= 0)
+        }
+    }
+
+    /**
+     * This enum describe the possibile [Luminosity] unit of measurement.
+     */
+    enum class LightUnit {
+        /**
+         * Lux unit.
+         */
+        LUX
+    }
+
+    /**
+     * Describe the presence inside a Room of the Operating Block.
+     * @param[presenceDetected] true if someone is in the room, false otherwise.
+     */
+    data class Presence(val presenceDetected: Boolean)
+}