diff --git a/src/cpl/dependency_injection/service_collection_abc.py b/src/cpl/dependency_injection/service_collection_abc.py
index 74d259f3..4d119b29 100644
--- a/src/cpl/dependency_injection/service_collection_abc.py
+++ b/src/cpl/dependency_injection/service_collection_abc.py
@@ -21,7 +21,9 @@ class ServiceCollectionABC(ABC):
         Parameter
         ---------
             db_context: Type[:class:`cpl.database.context.database_context_abc.DatabaseContextABC`]
+                Database context
             db_settings: :class:`cpl.database.database_settings.DatabaseSettings`
+                Database settings
         """
         pass
 
@@ -37,7 +39,9 @@ class ServiceCollectionABC(ABC):
         Parameter
         ---------
             service_type: :class:`Type`
+                Type of the service
             service: :class:`Callable`
+                Object of the service
         """
         pass
 
@@ -48,7 +52,9 @@ class ServiceCollectionABC(ABC):
         Parameter
         ---------
             service_type: :class:`Type`
+                Type of the service
             service: :class:`Callable`
+                Object of the service
         """
         pass
 
@@ -59,7 +65,9 @@ class ServiceCollectionABC(ABC):
         Parameter
         ---------
             service_type: :class:`Type`
+                Type of the service
             service: :class:`Callable`
+                Object of the service
         """
         pass
 
diff --git a/src/cpl/dependency_injection/service_descriptor.py b/src/cpl/dependency_injection/service_descriptor.py
index a1f384cb..a0c70e98 100644
--- a/src/cpl/dependency_injection/service_descriptor.py
+++ b/src/cpl/dependency_injection/service_descriptor.py
@@ -9,7 +9,9 @@ class ServiceDescriptor:
     Parameter
     ---------
         implementation: Union[:class:`type`, Optional[:class:`object`]]
+            Object or type of service
         lifetime: :class:`cpl.dependency_injection.service_lifetime_enum.ServiceLifetimeEnum`
+            Lifetime of the service
     """
 
     def __init__(self, implementation: Union[type, Optional[object]], lifetime: ServiceLifetimeEnum):
diff --git a/src/cpl/dependency_injection/service_provider.py b/src/cpl/dependency_injection/service_provider.py
index 54964c0b..c8c333b2 100644
--- a/src/cpl/dependency_injection/service_provider.py
+++ b/src/cpl/dependency_injection/service_provider.py
@@ -17,8 +17,11 @@ class ServiceProvider(ServiceProviderABC):
     Parameter
     ---------
         service_descriptors: list[:class:`cpl.dependency_injection.service_descriptor.ServiceDescriptor`]
+            Descriptor of the service
         config: :class:`cpl.configuration.configuration_abc.ConfigurationABC`
+            CPL Configuration
         db_context: Optional[:class:`cpl.database.context.database_context_abc.DatabaseContextABC`]
+            Database representation
     """
 
     def __init__(self, service_descriptors: list[ServiceDescriptor], config: ConfigurationABC, db_context: Optional[DatabaseContextABC]):
diff --git a/src/cpl/environment/application_environment.py b/src/cpl/environment/application_environment.py
index e28e6c6a..8acf1637 100644
--- a/src/cpl/environment/application_environment.py
+++ b/src/cpl/environment/application_environment.py
@@ -8,12 +8,14 @@ from cpl.environment.environment_name_enum import EnvironmentNameEnum
 
 
 class ApplicationEnvironment(ApplicationEnvironmentABC):
+    r"""Represents environment of the application
+
+    Parameter
+    ---------
+        name: :class:`cpl.environment.environment_name_enum.EnvironmentNameEnum`
+    """
 
     def __init__(self, name: EnvironmentNameEnum = EnvironmentNameEnum.production):
-        """
-        Represents environment of the application
-        :param name:
-        """
         ApplicationEnvironmentABC.__init__(self)
 
         self._environment_name: Optional[EnvironmentNameEnum] = name
diff --git a/src/cpl/environment/application_environment_abc.py b/src/cpl/environment/application_environment_abc.py
index fef45a17..7d0b82c7 100644
--- a/src/cpl/environment/application_environment_abc.py
+++ b/src/cpl/environment/application_environment_abc.py
@@ -3,12 +3,10 @@ from datetime import datetime
 
 
 class ApplicationEnvironmentABC(ABC):
+    r"""ABC of the class :class:`cpl.environment.application_environment.ApplicationEnvironment`"""
 
     @abstractmethod
     def __init__(self):
-        """
-        ABC of application environment
-        """
         pass
 
     @property
@@ -69,18 +67,22 @@ class ApplicationEnvironmentABC(ABC):
 
     @abstractmethod
     def set_runtime_directory(self, runtime_directory: str):
-        """
-        Sets the current runtime directory
-        :param runtime_directory:
-        :return:
+        r"""Sets the current runtime directory
+
+        Parameter
+        ---------
+            runtime_directory: :class:`str`
+                Path of the runtime directory
         """
         pass
 
     @abstractmethod
     def set_working_directory(self, working_directory: str):
-        """
-        Sets the current working directory
-        :param working_directory:
-        :return:
+        r"""Sets the current working directory
+
+        Parameter
+        ---------
+            working_directory: :class:`str`
+                Path of the current working directory
         """
         pass