diff --git a/README.md b/README.md
index 9286bcd..0859092 100644
--- a/README.md
+++ b/README.md
@@ -5,7 +5,7 @@ Android application developed in Kotlin using Jetpack Compose that scans barcode
 ## 🚀 Features
 
 - **Instant Scan**: The camera opens when adding a new SAI.
-- **Multi-Entity Management**: Dedicated sections for SAIs, Batteries, and People.
+- **Multi-Entity Management**: Dedicated sections for SAIs, Batteries, People, and SAI-Person Assignments.
 - **CRUD Operations**: Add, View, and Delete records for all managed entities.
 - **Connection Status**: Real-time indicator on the home screen.
 - **Visual Overlay**: Centered scanning guide with a red line to help align barcodes.
@@ -58,13 +58,14 @@ CREATE TABLE Persona (
     nombre VARCHAR(255) NOT NULL
 );
 
--- Table for Assignments
+-- Table for SAI - Person Assignments
 CREATE TABLE Asignado (
     id_asignacion INT AUTO_INCREMENT PRIMARY KEY,
     id_sai INT,
     id_persona INT,
     fecha_asignado DATE,
     fecha_devolucion DATE,
+    observaciones VARCHAR(255),
     FOREIGN KEY (id_sai) REFERENCES SAIs(id_sai),
     FOREIGN KEY (id_persona) REFERENCES Persona(id_persona)
 );
diff --git a/app/src/main/java/com/example/saipp/data/AssignmentRepository.kt b/app/src/main/java/com/example/saipp/data/AssignmentRepository.kt
index 6979e51..ed8a66c 100644
--- a/app/src/main/java/com/example/saipp/data/AssignmentRepository.kt
+++ b/app/src/main/java/com/example/saipp/data/AssignmentRepository.kt
@@ -11,7 +11,7 @@ class AssignmentRepository {
         val connection = MariaDbConnection.getConnection() ?: return@withContext Result.failure(Exception("db_connection_error"))
         try {
             val sql = """
-                SELECT a.id_asignacion, a.id_sai, a.id_persona, a.fecha_asignado, a.fecha_devolucion, 
+                SELECT a.id_asignacion, a.id_sai, a.id_persona, a.fecha_asignado, a.fecha_devolucion, a.observaciones,
                        s.ns as sai_ns, p.nombre as person_name 
                 FROM Asignado a
                 LEFT JOIN SAIs s ON a.id_sai = s.id_sai
@@ -27,6 +27,7 @@ class AssignmentRepository {
                     idPersona = resultSet.getInt("id_persona"),
                     assignedDate = resultSet.getString("fecha_asignado"),
                     returnDate = resultSet.getString("fecha_devolucion"),
+                    observations = resultSet.getString("observaciones"),
                     saiNs = resultSet.getString("sai_ns"),
                     personName = resultSet.getString("person_name")
                 ))
@@ -42,7 +43,7 @@ class AssignmentRepository {
     suspend fun getById(id: Int): Result<Assignment> = withContext(Dispatchers.IO) {
         val connection = MariaDbConnection.getConnection() ?: return@withContext Result.failure(Exception("db_connection_error"))
         try {
-            val sql = "SELECT id_asignacion, id_sai, id_persona, fecha_asignado, fecha_devolucion FROM Asignado WHERE id_asignacion = ?"
+            val sql = "SELECT id_asignacion, id_sai, id_persona, fecha_asignado, fecha_devolucion, observaciones FROM Asignado WHERE id_asignacion = ?"
             val statement = connection.prepareStatement(sql)
             statement.setInt(1, id)
             val resultSet = statement.executeQuery()
@@ -52,7 +53,8 @@ class AssignmentRepository {
                     idSai = resultSet.getInt("id_sai"),
                     idPersona = resultSet.getInt("id_persona"),
                     assignedDate = resultSet.getString("fecha_asignado"),
-                    returnDate = resultSet.getString("fecha_devolucion")
+                    returnDate = resultSet.getString("fecha_devolucion"),
+                    observations = resultSet.getString("observaciones")
                 ))
             } else {
                 Result.failure(Exception("not_found"))
@@ -67,12 +69,13 @@ class AssignmentRepository {
     suspend fun insert(item: Assignment): Result<Unit> = withContext(Dispatchers.IO) {
         val connection = MariaDbConnection.getConnection() ?: return@withContext Result.failure(Exception("db_connection_error"))
         try {
-            val sql = "INSERT INTO Asignado (id_sai, id_persona, fecha_asignado, fecha_devolucion) VALUES (?, ?, ?, ?)"
+            val sql = "INSERT INTO Asignado (id_sai, id_persona, fecha_asignado, fecha_devolucion, observaciones) VALUES (?, ?, ?, ?, ?)"
             val statement = connection.prepareStatement(sql)
             statement.setInt(1, item.idSai)
             statement.setInt(2, item.idPersona)
             statement.setString(3, item.assignedDate)
             statement.setString(4, item.returnDate)
+            statement.setString(5, item.observations)
             
             if (statement.executeUpdate() > 0) Result.success(Unit)
             else Result.failure(Exception("no_rows_inserted"))
@@ -86,13 +89,14 @@ class AssignmentRepository {
     suspend fun update(item: Assignment): Result<Unit> = withContext(Dispatchers.IO) {
         val connection = MariaDbConnection.getConnection() ?: return@withContext Result.failure(Exception("db_connection_error"))
         try {
-            val sql = "UPDATE Asignado SET id_sai = ?, id_persona = ?, fecha_asignado = ?, fecha_devolucion = ? WHERE id_asignacion = ?"
+            val sql = "UPDATE Asignado SET id_sai = ?, id_persona = ?, fecha_asignado = ?, fecha_devolucion = ?, observaciones = ? WHERE id_asignacion = ?"
             val statement = connection.prepareStatement(sql)
             statement.setInt(1, item.idSai)
             statement.setInt(2, item.idPersona)
             statement.setString(3, item.assignedDate)
             statement.setString(4, item.returnDate)
-            statement.setInt(5, item.id)
+            statement.setString(5, item.observations)
+            statement.setInt(6, item.id)
             
             if (statement.executeUpdate() > 0) Result.success(Unit)
             else Result.failure(Exception("update_failed"))
diff --git a/app/src/main/java/com/example/saipp/data/model/Assignment.kt b/app/src/main/java/com/example/saipp/data/model/Assignment.kt
index 53955a4..4795b9c 100644
--- a/app/src/main/java/com/example/saipp/data/model/Assignment.kt
+++ b/app/src/main/java/com/example/saipp/data/model/Assignment.kt
@@ -6,6 +6,7 @@ data class Assignment(
     val idPersona: Int,
     val assignedDate: String? = null,
     val returnDate: String? = null,
+    val observations: String? = null,
     // Optional display fields for joining data
     val saiNs: String? = null,
     val personName: String? = null
diff --git a/app/src/main/java/com/example/saipp/ui/management/AddAssignmentScreen.kt b/app/src/main/java/com/example/saipp/ui/management/AddAssignmentScreen.kt
index 19b45da..6e92385 100644
--- a/app/src/main/java/com/example/saipp/ui/management/AddAssignmentScreen.kt
+++ b/app/src/main/java/com/example/saipp/ui/management/AddAssignmentScreen.kt
@@ -43,6 +43,7 @@ fun AddAssignmentScreen(
     var assignedDateDb by remember { mutableStateOf("") }
     var returnDateDisplay by remember { mutableStateOf("") }
     var returnDateDb by remember { mutableStateOf("") }
+    var observations by remember { mutableStateOf("") }
     
     var sais by remember { mutableStateOf<List<Sai>>(emptyList()) }
     var people by remember { mutableStateOf<List<Person>>(emptyList()) }
@@ -118,7 +119,7 @@ fun AddAssignmentScreen(
     Scaffold(
         topBar = {
             TopAppBar(
-                title = { Text("Añadir Asignación") },
+                title = { Text("Añadir SAI - Persona") },
                 navigationIcon = {
                     IconButton(onClick = onNavigateBack) {
                         Icon(Icons.Default.ArrowBack, contentDescription = "Atrás")
@@ -233,6 +234,16 @@ fun AddAssignmentScreen(
                 modifier = Modifier.fillMaxWidth().clickable { showReturnDatePicker = true }
             )
             
+            Spacer(modifier = Modifier.height(16.dp))
+            
+            OutlinedTextField(
+                value = observations,
+                onValueChange = { observations = it },
+                label = { Text(stringResource(R.string.label_observations)) },
+                modifier = Modifier.fillMaxWidth(),
+                minLines = 3
+            )
+            
             Spacer(modifier = Modifier.height(32.dp))
             
             Button(
@@ -245,10 +256,11 @@ fun AddAssignmentScreen(
                                     idSai = selectedSaiId!!,
                                     idPersona = selectedPersonId!!,
                                     assignedDate = assignedDateDb.takeIf { it.isNotBlank() },
-                                    returnDate = returnDateDb.takeIf { it.isNotBlank() }
+                                    returnDate = returnDateDb.takeIf { it.isNotBlank() },
+                                    observations = observations.takeIf { it.isNotBlank() }
                                 )
                             ).onSuccess { 
-                                Toast.makeText(context, "Asignación guardada", Toast.LENGTH_SHORT).show()
+                                Toast.makeText(context, "Asignación SAI - Persona guardada", Toast.LENGTH_SHORT).show()
                                 onNavigateBack()
                             }.onFailure { 
                                 Toast.makeText(context, "Error: ${it.message}", Toast.LENGTH_SHORT).show() 
diff --git a/app/src/main/java/com/example/saipp/ui/management/AssignmentListScreen.kt b/app/src/main/java/com/example/saipp/ui/management/AssignmentListScreen.kt
index c93dc93..c5387b9 100644
--- a/app/src/main/java/com/example/saipp/ui/management/AssignmentListScreen.kt
+++ b/app/src/main/java/com/example/saipp/ui/management/AssignmentListScreen.kt
@@ -55,7 +55,8 @@ fun AssignmentListScreen(
     val filteredItems = remember(items, searchQuery) {
         items.filter { 
             it.personName?.contains(searchQuery, ignoreCase = true) ?: false ||
-            it.saiNs?.contains(searchQuery, ignoreCase = true) ?: false
+            it.saiNs?.contains(searchQuery, ignoreCase = true) ?: false ||
+            it.observations?.contains(searchQuery, ignoreCase = true) ?: false
         }
     }
 
@@ -74,7 +75,7 @@ fun AssignmentListScreen(
     Scaffold(
         topBar = {
             TopAppBar(
-                title = { Text("Listado de Asignaciones") },
+                title = { Text("Listado SAI - Persona") },
                 navigationIcon = {
                     IconButton(onClick = onNavigateBack) {
                         Icon(Icons.Default.ArrowBack, contentDescription = "Atrás")
@@ -84,7 +85,7 @@ fun AssignmentListScreen(
         },
         floatingActionButton = {
             FloatingActionButton(onClick = onNavigateToAdd) {
-                Icon(Icons.Default.Add, contentDescription = "Añadir Asignación")
+                Icon(Icons.Default.Add, contentDescription = "Añadir SAI - Persona")
             }
         }
     ) { padding ->
@@ -122,6 +123,9 @@ fun AssignmentListScreen(
                                     if (item.returnDate != null) {
                                         Text("Devolución: ${formatDate(item.returnDate)}")
                                     }
+                                    if (!item.observations.isNullOrBlank()) {
+                                        Text("Obs: ${item.observations}", style = MaterialTheme.typography.bodySmall, color = MaterialTheme.colorScheme.secondary)
+                                    }
                                 }
                             },
                             trailingContent = {
diff --git a/app/src/main/java/com/example/saipp/ui/management/EditAssignmentScreen.kt b/app/src/main/java/com/example/saipp/ui/management/EditAssignmentScreen.kt
index 4b6c700..94d2762 100644
--- a/app/src/main/java/com/example/saipp/ui/management/EditAssignmentScreen.kt
+++ b/app/src/main/java/com/example/saipp/ui/management/EditAssignmentScreen.kt
@@ -44,6 +44,7 @@ fun EditAssignmentScreen(
     var assignedDateDb by remember { mutableStateOf("") }
     var returnDateDisplay by remember { mutableStateOf("") }
     var returnDateDb by remember { mutableStateOf("") }
+    var observations by remember { mutableStateOf("") }
     
     var sais by remember { mutableStateOf<List<Sai>>(emptyList()) }
     var people by remember { mutableStateOf<List<Person>>(emptyList()) }
@@ -68,6 +69,7 @@ fun EditAssignmentScreen(
             val item = assignmentResult.getOrNull()!!
             selectedSaiId = item.idSai
             selectedPersonId = item.idPersona
+            observations = item.observations ?: ""
             
             val dbFormat = SimpleDateFormat("yyyy-MM-dd", Locale.getDefault())
             val displayFormat = SimpleDateFormat("dd-MM-yyyy", Locale.getDefault())
@@ -159,7 +161,7 @@ fun EditAssignmentScreen(
     Scaffold(
         topBar = {
             TopAppBar(
-                title = { Text("Editar Asignación") },
+                title = { Text("Editar SAI - Persona") },
                 navigationIcon = {
                     IconButton(onClick = onNavigateBack) {
                         Icon(Icons.Default.ArrowBack, contentDescription = "Atrás")
@@ -279,6 +281,16 @@ fun EditAssignmentScreen(
                     modifier = Modifier.fillMaxWidth().clickable { showReturnDatePicker = true }
                 )
                 
+                Spacer(modifier = Modifier.height(16.dp))
+                
+                OutlinedTextField(
+                    value = observations,
+                    onValueChange = { observations = it },
+                    label = { Text(stringResource(R.string.label_observations)) },
+                    modifier = Modifier.fillMaxWidth(),
+                    minLines = 3
+                )
+                
                 Spacer(modifier = Modifier.height(32.dp))
                 
                 Button(
@@ -292,10 +304,11 @@ fun EditAssignmentScreen(
                                         idSai = selectedSaiId!!,
                                         idPersona = selectedPersonId!!,
                                         assignedDate = assignedDateDb.takeIf { it.isNotBlank() },
-                                        returnDate = returnDateDb.takeIf { it.isNotBlank() }
+                                        returnDate = returnDateDb.takeIf { it.isNotBlank() },
+                                        observations = observations.takeIf { it.isNotBlank() }
                                     )
                                 ).onSuccess { 
-                                    Toast.makeText(context, "Asignación actualizada", Toast.LENGTH_SHORT).show()
+                                    Toast.makeText(context, "Asignación SAI - Persona actualizada", Toast.LENGTH_SHORT).show()
                                     onNavigateBack()
                                 }.onFailure { 
                                     Toast.makeText(context, "Error: ${it.message}", Toast.LENGTH_SHORT).show() 
diff --git a/app/src/main/res/values/strings.xml b/app/src/main/res/values/strings.xml
index 7ee2cc2..04efb2e 100644
--- a/app/src/main/res/values/strings.xml
+++ b/app/src/main/res/values/strings.xml
@@ -26,10 +26,11 @@
     <string name="menu_sais">Gestión de SAIs</string>
     <string name="menu_batteries">Gestión de Baterías</string>
     <string name="menu_people">Gestión de Personas</string>
-    <string name="menu_assignments">Gestión de Asignaciones</string>
+    <string name="menu_assignments">Gestion SAI - Persona</string>
 
     <string name="label_person">Persona</string>
     <string name="label_assigned_date">Fecha Asignación (DD-MM-AAAA)</string>
     <string name="label_return_date">Fecha Devolución (DD-MM-AAAA)</string>
+    <string name="label_observations">Observaciones</string>
     <string name="select_person">Seleccionar Persona</string>
 </resources>
\ No newline at end of file