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Symbian3/PDK/Source/GUID-9D6E0EB4-CBF8-48BC-A76F-FE6366D4D96E.dita
author Dominic Pinkman <Dominic.Pinkman@Nokia.com>
Tue, 30 Mar 2010 11:56:28 +0100
changeset 5 f345bda72bc4
parent 1 25a17d01db0c
child 14 578be2adaf3e
permissions -rw-r--r--
Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
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<?xml version="1.0" encoding="utf-8"?>
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<!-- Copyright (c) 2007-2010 Nokia Corporation and/or its subsidiary(-ies) All rights reserved. -->
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<!-- This component and the accompanying materials are made available under the terms of the License
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"Eclipse Public License v1.0" which accompanies this distribution,
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and is available at the URL "http://www.eclipse.org/legal/epl-v10.html". -->
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<!-- Initial Contributors:
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    Nokia Corporation - initial contribution.
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Contributors:
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-->
f345bda72bc4 Week 12 contribution of PDK documentation_content. See release notes for details. Fixes Bug 2054, Bug 1583, Bug 381, Bug 390, Bug 463, Bug 1897, Bug 344, Bug 1319, Bug 394, Bug 1520, Bug 1522, Bug 1892"
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<!DOCTYPE concept
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  PUBLIC "-//OASIS//DTD DITA Concept//EN" "concept.dtd">
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<concept id="GUID-9D6E0EB4-CBF8-48BC-A76F-FE6366D4D96E" xml:lang="en"><title>Downloading</title><prolog><metadata><keywords/></metadata></prolog><conbody>
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<p>You can use the Download Manager Client API to create and manage a session
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in which files are downloaded over HTTP or HTTPS. </p>
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<p>The DRM APIs provided by the multimedia framework on the Symbian platform
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allow you to provide DRM services in your application.</p>
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<section id="GUID-541D396A-FAD1-4B8B-A4AB-09758369293B"><title>OMA download</title>
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<p>The Symbian platform supports the <xref href="http://www.openmobilealliance.org/" scope="external">Open
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Mobile Alliance</xref> (OMA) download v1.0 open standard and application-level
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protocol that enables reliable content downloads. It can be integrated with
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other services, such as billing, allowing premium-priced content to be made
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available to mobile users. OMA download replaces content object descriptor
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(COD) download as the preferred method for downloading content to mobile devices.</p>
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<p>OMA download improves the mobile device user experience by informing
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users of the success of the content download. This helps ensure that the content
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can be used in the mobile device and that users are not charged if downloading
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fails. OMA download is used on top of HTTP or the wireless session protocol
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(WSP). </p>
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<p>The effort needed to implement OMA download is minimal. An operator
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only needs to create a so-called download descriptor file for each piece of
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content and make simple changes in the HTTP server to enable the OMA download
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protocol. For example, OMA download can be adopted without any changes in
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the billing mechanisms. However, to fully benefit from it, some changes are
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required in order to know whether users received the ordered content and hence
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ensure that they will not be charged if downloading fails. The install notification
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feature of OMA download can, for example, be used as an event that triggers
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billing.</p>
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<p>OMA
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DRM and OMA download are independent technologies for independent tasks. Both
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promote the mobile content downloading business as well as improve the mobile
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device user experience of mobile content. Content protected by OMA DRM can
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be delivered using OMA download as well as multimedia messaging service (MMS),
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mobile information device profile (MIDP) OTA, and so on. OMA DRM and OMA download
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are standardized in parallel by OMA. For more information, see <xref href="GUID-60F25F66-8CC5-46BF-9274-BDE8F9A10B74.dita">OMA
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DRM v1.0</xref>.</p>
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</section>
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<section id="GUID-5968A533-AC94-4DC6-B0B3-4F9A0D149F88"><title>Additional information</title>
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<p>For general information on DRM and reliable download technologies, see
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the <xref href="http://www.forum.nokia.com/main/resources/technologies/drm_and_download/index.html" scope="external">DRM
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and Download page</xref>. It includes links to information on Open Mobile
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Alliance (OMA) DRM and OMA download standards as well as a useful table on
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DRM support in different releases of the Symbian platform.</p>
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<p>For additional information on DRM, see the <xref href="http://www.forum.nokia.com/main/resources/documentation/drm.html" scope="external">DRM
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documentation page </xref>.</p>
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<p>For more information on multimedia and the multimedia
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framework, see <xref href="GUID-1DE5CDAD-8D71-5384-9E98-5665D5A4C792.dita">Multimedia
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Guide</xref>.</p>
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</section>
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</conbody></concept>
FCL/sftools/depl/docscontent