linking all feature requirement to architecture

docs/features/lifecycle/architecture/_assets/application_health_monitoring_dynamic.puml

@@ -43,15 +43,15 @@ HM -> HM: Wakeup and check if the\ncheckpoints have been called
 HM -> LM: Supervision failure notification
 
 HM -X LM: Stop triggering alive
-LM -> LM: Error reaction\n(notify State manager)
+LM -> LM: Error reaction\n(Recovery Action)
 
 hnote across: Use Case: Direct error report by the Application
 
 App -> HM: Report error
 HM -> LM: Supervision failure notification
 
 HM -X LM: Stop triggering alive
-LM -> LM: Error reaction\n(notify State manager)
+LM -> LM: Error reaction\n(Recovery Action)
 
 hnote across: Use Case: Crashed Application
 
@@ -61,7 +61,6 @@ destroy HM
 
 LM -> LM: Wakeup and check if the\ncheckpoints have been called 
 LM -> LM: No alive notification seen
-LM -> LM: Error reaction\n(notify State manager)
-
+LM -> LM: Error reaction\n(Recovery Action)
 
 @enduml

docs/features/lifecycle/architecture/_assets/launch_manager_parallel_dep.puml

@@ -0,0 +1,41 @@
+' *******************************************************************************
+' Copyright (c) 2026 Contributors to the Eclipse Foundation
+'
+' See the NOTICE file(s) distributed with this work for additional
+' information regarding copyright ownership.
+'
+' This program and the accompanying materials are made available under the
+' terms of the Apache License Version 2.0 which is available at
+' https://www.apache.org/licenses/LICENSE-2.0
+'
+' SPDX-License-Identifier: Apache-2.0
+' *******************************************************************************
+
+@startuml
+title Launch Manager - Run Components in Parallel
+
+autonumber "<b>[00]"
+
+participant "Launch Manager" as LM
+participant "OS (kernel)" as kernel
+participant "Reporting App 1" as app1
+participant "Reporting App 2" as app2
+activate LM
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.
+
+LM -> kernel: Start Reporting App 1.
+LM -> kernel: Start Reporting App 2.
+kernel -> app1 **: Start.
+kernel -> app2 **: Start.
+
+activate app1
+activate app2
+
+app1 -> app1: Internal User app initialization.
+app1 -> LM: Signal ready state via Lifecycle API.
+app2 -> app2: Internal User app initialization.
+app2 -> LM: Signal ready state via Lifecycle API.
+...
+@enduml

docs/features/lifecycle/architecture/_assets/launch_manager_random_crash.puml

@@ -0,0 +1,41 @@
+' *******************************************************************************
+' Copyright (c) 2026 Contributors to the Eclipse Foundation
+'
+' See the NOTICE file(s) distributed with this work for additional
+' information regarding copyright ownership.
+'
+' This program and the accompanying materials are made available under the
+' terms of the Apache License Version 2.0 which is available at
+' https://www.apache.org/licenses/LICENSE-2.0
+'
+' SPDX-License-Identifier: Apache-2.0
+' *******************************************************************************
+
+@startuml
+title Launch Manager - Crash Recovery
+
+autonumber "<b>[00]"
+
+participant "Launch Manager" as LM
+participant "OS (kernel)" as kernel
+participant "Crashing Process" as app1
+
+
+activate LM
+activate app1
+
+...
+
+
+app1 -> app1: Random crash.
+app1 -> kernel: Terminate.
+destroy app1
+kernel -> LM: Process terminated.
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.\nA recovery action has to be ran,\nthe recovery action is to switch to a different Run Target.
+LM -> LM: Switch Run Target.
+
+...
+
+@enduml

docs/features/lifecycle/architecture/_assets/launch_manager_running_dep.puml

@@ -0,0 +1,49 @@
+' *******************************************************************************
+' Copyright (c) 2026 Contributors to the Eclipse Foundation
+'
+' See the NOTICE file(s) distributed with this work for additional
+' information regarding copyright ownership.
+'
+' This program and the accompanying materials are made available under the
+' terms of the Apache License Version 2.0 which is available at
+' https://www.apache.org/licenses/LICENSE-2.0
+'
+' SPDX-License-Identifier: Apache-2.0
+' *******************************************************************************
+
+@startuml
+title Launch Manager - Components Depends on Each Other
+
+autonumber "<b>[00]"
+
+participant "Launch Manager" as LM
+participant "OS (kernel)" as kernel
+participant "Reporting App 1" as app1
+participant "Reporting App 2" as app2
+activate LM
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.
+
+LM -> kernel: Start Reporting App 2.
+kernel -> app2 **: Start.
+activate app2
+LM -> LM: Wait for Reporting App 2 ready condition.
+app2 -> app2: Internal User app initialization.
+app2 -> LM: Signal ready state via Lifecycle API.
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.
+
+LM -> kernel: Start Reporting App 1.
+kernel -> app1 **: Start.
+activate app1
+LM -> LM: Wait for Reporting App 1 ready condition.
+app1 -> app1: Internal User app initialization.
+app1 -> LM: Signal ready state via Lifecycle API.
+
+LM -> LM: Analyze current state.
+LM -> LM: Update current run target state to active.
+
+...
+@enduml

docs/features/lifecycle/architecture/_assets/launch_manager_terminate_dep.puml

@@ -0,0 +1,50 @@
+' *******************************************************************************
+' Copyright (c) 2026 Contributors to the Eclipse Foundation
+'
+' See the NOTICE file(s) distributed with this work for additional
+' information regarding copyright ownership.
+'
+' This program and the accompanying materials are made available under the
+' terms of the Apache License Version 2.0 which is available at
+' https://www.apache.org/licenses/LICENSE-2.0
+'
+' SPDX-License-Identifier: Apache-2.0
+' *******************************************************************************
+
+@startuml
+title Launch Manager - Components Depends on Termination
+
+autonumber "<b>[00]"
+
+participant "Launch Manager" as LM
+participant "OS (kernel)" as kernel
+participant "Reporting App 1" as app1
+participant "Reporting App 2" as app2
+activate LM
+activate app1
+
+== Switch Run Target ==
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.
+
+LM -> app1: SIGTERM
+app1 -> kernel: Termination.
+destroy app1
+
+
+destroy app1
+kernel -> LM: Reporting App 1 terminated.
+deactivate app1
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.
+
+LM -> kernel: Start Reporting App 2.
+kernel -> app2 **: Start.
+activate app2
+LM -> LM: Wait for Reporting App 2 ready condition.
+app2 -> app2: Internal User app initialization.
+app2 -> LM: Signal ready state via Lifecycle API.
+...
+@enduml

docs/features/lifecycle/architecture/_assets/launch_manager_terminate_request.puml

@@ -0,0 +1,44 @@
+' *******************************************************************************
+' Copyright (c) 2026 Contributors to the Eclipse Foundation
+'
+' See the NOTICE file(s) distributed with this work for additional
+' information regarding copyright ownership.
+'
+' This program and the accompanying materials are made available under the
+' terms of the Apache License Version 2.0 which is available at
+' https://www.apache.org/licenses/LICENSE-2.0
+'
+' SPDX-License-Identifier: Apache-2.0
+' *******************************************************************************
+
+@startuml
+title Launch Manager - Termination Request
+
+autonumber "<b>[00]"
+
+participant "Launch Manager" as LM
+participant "OS (kernel)" as kernel
+participant "User App 1 (well behaving)" as app1
+participant "User App 2 (badly behaving)" as app2
+
+activate LM
+activate app1
+activate app2
+
+== Switch Run Target ==
+
+LM -> LM: Analyze current state.
+LM -> LM: Determine transition plan.
+
+
+LM -> app1: SIGTERM.
+app1 -> kernel: Terminate.
+destroy app1
+
+LM -> app2: SIGTERM.
+app2 -> app2: Ignore.
+LM -> app2: SIGKILL.
+app2 -> kernel: Terminate.
+destroy app2
+
+@enduml

docs/features/lifecycle/architecture/alive.rst

@@ -0,0 +1,61 @@
+..
+   # *******************************************************************************
+   # Copyright (c) 2025 Contributors to the Eclipse Foundation
+   #
+   # See the NOTICE file(s) distributed with this work for additional
+   # information regarding copyright ownership.
+   #
+   # This program and the accompanying materials are made available under the
+   # terms of the Apache License Version 2.0 which is available at
+   # https://www.apache.org/licenses/LICENSE-2.0
+   #
+   # SPDX-License-Identifier: Apache-2.0
+   # *******************************************************************************
+
+:orphan:
+
+Alive
+#####
+
+The Alive Interface provides a basic watchdog functionality interface that
+delivers essential monitoring capabilities for system health and responsiveness
+tracking.
+It implements core watchdog operations including heartbeat signals to ensure
+reliable operation and automatic recovery from unresponsive states.
+
+**SCORE Application Liveliness Reporting**
+
+SCORE applications can periodically signal their liveliness to the
+:term:`Launch Manager` through the Alive Interface.
+This mechanism allows the :term:`Launch Manager` to:
+
+- Detect application failures or hangs
+- Trigger recovery actions when liveliness is lost
+- Maintain accurate process health status
+
+The liveliness mechanism includes:
+
+- Configurable heartbeat intervals per application
+- Timeout detection and failure handling
+
+The alive interface is defined here: :need:`logic_arc_int__lifecycle__alive_if`
+
+
+Dynamic architecture
+====================
+
+.. feat_arc_dyn:: Alive Monitoring
+   :id: feat_arc_dyn__lifecycle__alive_monitor
+   :security: YES
+   :status: valid
+   :version: 1
+   :safety: ASIL_B
+   :fulfils: feat_req__lifecycle__liveliness_detection[version==1]
+   :includes:
+   :belongs_to: feat__lifecycle[version==1]
+
+   .. uml:: _assets/alive_monitoring_dynamic.puml
+      :scale: 50
+      :align: center
+
+