<?xml version="1.0" encoding="utf-8"?>

<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->

<!-- This component and the accompanying materials are made available under the terms of the License 

"Eclipse Public License v1.0" which accompanies this distribution, 

and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->

<!-- Initial Contributors:

    Nokia Corporation - initial contribution.

Contributors: 

-->

<!DOCTYPE concept

  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">

<concept xml:lang="en" id="GUID-F669F877-2DBD-55C3-97DA-78745E78347D"><title>System State Transition</title><prolog><metadata><keywords/></metadata></prolog><conbody><p>The System State Manager component (<filepath>SysStateMgr.exe</filepath>) controls transitioning of the device to different system states and reacts to changes made to the system-wide properties. </p> <p>The following image shows the system states and the transitions that are allowed between these states: </p> <fig id="GUID-0B96811A-042F-5523-B366-36587E20AB6C"><title>

          System State Transitions 

        </title> <image href="GUID-CBAF83A9-815E-5C48-BD4A-3B31A115E3FE_d0e165453_href.png" placement="inline"/></fig> <p>SSM policies determine the set of permissible states and state transitions and the tasks that are performed while changing the system state. SSM distributes system state change notifications to components in the systems that have requested notifications. These components respond to the change notifications. </p> <p>When there is a change in system state, the system state policies select the tasks to be performed from the available common tasks and task plug-ins. </p> </conbody></concept>