diff --git a/src/Entity/TaskEntity.php b/src/Entity/TaskEntity.php
new file mode 100644
index 0000000..3e852b6
--- /dev/null
+++ b/src/Entity/TaskEntity.php
@@ -0,0 +1,171 @@
+<?php
+namespace App\Entity;
+
+use App\Enum\StatusEnum;
+use App\Helper\StringGenerationHelper;
+use DateTime;
+
+/**
+ * Entity for activity task
+ */
+class TaskEntity
+{
+
+    /** @var Array List of valid status for an activity */
+    public const VALID_STATUS = [
+        StatusEnum::OPEN,
+        StatusEnum::IN_PROGRESS,
+        StatusEnum::WAITING,
+        StatusEnum::PLANIFIED,
+        StatusEnum::CLOSED,
+    ];
+
+    /** @var string The unique identifier of the entity */
+    protected $id = '';
+
+    /** @var string The name of the activity */
+    protected $name = '';
+
+    /** @var DateTime|NULL The date when the task is planified */
+    protected $planifiedDate = null;
+
+    /** @var DateTime|NULL The date when the task were done */
+    protected $executionDate = null;
+
+    /** @var ActivityEntity|NULL The related activity if it is in the context of an activity */
+    protected $activity = null;
+
+    /** @var string Status of the activity */
+    protected $status = StatusEnum::OPEN;
+
+    /**
+     * Get the unique ID the entity
+     *
+     * @return string
+     */
+    public function getId(): string
+    {
+        return $this->id;
+    }
+
+    /**
+     * Set the ID of the entity
+     * <br/> This should not be done after creation
+     *
+     * @param string $id
+     * @return self
+     */
+    public function setId(string $id): self
+    {
+        $this->id = $id;
+
+        return $this;
+    }
+
+    /**
+     * Generate and save a random ID
+     *
+     * @return string Generated ID
+     */
+    public function generateId(): string
+    {
+        // Generate ID
+        $id = StringGenerationHelper::generateString(array_merge(range('a', 'z'), range('A', 'Z'), range('0', '9')), 8);
+
+        // Save and return
+        $this->setId($id);
+        return $id;
+    }
+
+    /**
+     * Get the task name
+     *
+     * @return string
+     */
+    public function getName(): string
+    {
+        return $this->name;
+    }
+
+    /**
+     * Set a new name for the task
+     *
+     * @param string $name
+     * @return self
+     */
+    public function setName(string $name): self
+    {
+        $this->name = $name;
+
+        return $this;
+    }
+
+    /**
+     * Get the planified execution date
+     *
+     * @return DateTime|NULL
+     */
+    public function getPlanifiedDate(): ?DateTime
+    {
+        return $this->planifiedDate;
+    }
+
+    /**
+     * Set the planified execution date
+     *
+     * @param DateTime $planifiedDate
+     * @return self
+     */
+    public function setPlanifiedDate(?DateTime $planifiedDate): self
+    {
+        $this->planifiedDate = $planifiedDate;
+
+        return $this;
+    }
+
+    /**
+     * Get the effective execution date
+     *
+     * @return DateTime|NULL
+     */
+    public function getExecutionDate(): ?DateTime
+    {
+        return $this->planifiedDate;
+    }
+
+    /**
+     * Set the effective execution date
+     *
+     * @param DateTime $executionDate
+     * @return self
+     */
+    public function setExecutionDate(?DateTime $executionDate): self
+    {
+        $this->executionDate = $executionDate;
+
+        return $this;
+    }
+
+    /**
+     * Get the related activity
+     *
+     * @return ActivityEntity|NULL
+     */
+    public function getActivity(): ?ActivityEntity
+    {
+        return $this->activity;
+    }
+
+    /**
+     * Set the related activity
+     *
+     * @param ActivityEntity $activity
+     * @return self
+     */
+    public function setActivity(?ActivityEntity $activity): self
+    {
+        $this->activity = $activity;
+
+        return $this;
+    }
+}
\ No newline at end of file