ORACLE_slides

8/7/2019 ORACLE_slides

1/18


2/18

Otto WstSenior Consultant

Oracle Corporation


3/18

CUIDADO Meeting Paris, March 2003

xAgenda

Recent work

XDB/MEDEE Strategy

Planning

Open Issues

Conclusion


4/18

WP 2.3 Objectives Remainder

xDesign + implement data structures best

suited to the content based retrieval and

processing needs of CUIDADO

xTimely completion of agreed deliverables:

D2.3.1: Storage and parser components for firstapplication prototypes (COMPLETED FEB 02)

D2.3.2: Database components and technology forstorage and retrieval of audio descriptors

xNew deliverable comprising former D2.3.2 and

D2.3.3


5/18

Summary of tasks performed during

last monthsxContribution to the re-specification process

xAnalysis of MEDEE subsystem requirements

xUnitary MPEG-7 approach and concept

testing

xStudy and specification of the most

appropriate and beneficial usage of the

standard XDB features for the project

xIntegration of Sound Palette off-line

xSolving particular DB install and setup issues


6/18

Global approach for D2.3.2

xNOV-2002: Consensus for MPEG-7 based storage ofdescriptors (and descriptions)

Choice of direct storage of XML vs mapping of the XML-Schema into relational tables.

Standard MPEG-7 XML-Schema provides precise definitionof

xDescriptor data types

xOptional vs. mandatory descriptions

xEtc.

xUse of standard Oracle XDB XML database features where possible

xSpecific adaptations/tuning required to provide aconsistent and fully functional MPEG-7 layer atdatabase level


7/18

WP-2.3 Current Architecture

MEDEE Layer

pl/sql Layer

APPS

ODBC / JDBC / Native

Oracle9iR2

SP Off-line SP On-line Other

XDB

Other DBElements


8/18

Oracle XDB XML Layer

xProvides the XML framework used by CUIDADOapps.

xAllows structured and/or unstructured storage of XML

xChoice of structured storage

xRegistration of MPEG-7 XML-Schema Mapping of MPEG-7 Schema types to object-relational

types stored in the database

xXML documents parsed at insertion-time stored in theobject-relational structures

xEfficient retrieval using Xpath

xNot only textual indexes, also numerical and specificfunctional indexing


9/18

Mpeg-7 specific Layer: MEDEE

xBuilt on top of the Oracle XDB

xMpeg7 specific DB level functionalities Reference management

Term Reference management

Child Node management

Relation management

Full text searches Classification Schemes

Simple type extractions

xDependencies SONA XML output not fully defined

More clear definition of some of the detailed requirements


10/18

The database as an integration layer

xUse of pl/sql in order to facilitate integration Readable from multiple platforms

Access through multiple standard interfaces

xJava -> JDBC

xC/C++ -> ODBC, OCI, OCCI

xStorage of the elements in Mpeg-7 compatibleXML

xSound Palette off-line and on-line canefficiently re-use common functionalities at adatabase level

xIntegration example: Sound Palette off-line


11/18

MEDEE Generic approach

xUsage of the ODCI functional index mechanisms

xCreate parallel structures that are automatically

maintained at insertion/update/delete time and used

for:

Indexing purposes

Maintaining and granting MPEG-7 consistency

Fast Recursive queries

Searching through references

=> CONSTITUTE A GENERIC APPROACH

xAlready tested at a unitary level


12/18

MEDEE Development

x Principal development focus: Use MEDEE in SoundPalette Application Prototypes Start with Audio descriptions = description of segments

x Semantic

x Pitch

Based on concepts contained in

x ConceptCollections

x SemanticDescription Concept labels are defined as Terms in Classification

Schemes.

x Expected Results First demo of the SP offline Sample Browser

Identification of development and integration costs

Aid for determining a more detailed planning and thedefinitive implementation strategy


13/18

MEDEE Development strategy

x Extreme Programming

approach

Short development cycles of bits of final functionalities,based on example use cases (requires the XML examples)

Integration into Sound Palette

Testing -> will give any feedback on the development

x Example: Development of Concept Collection(already planned and agreed) Produce sample XML files

Write MEDEE level implementation for

1.BrowseConceptNoRecursionNoRelations

2.BrowseConceptWithRelations

3.Etc

In almost parallel make development of pl/sql layer for thefunctions above

Integration into Sound Palette.Testing. Feedback.


14/18

WP2.3 Other Relevant Issues

xDirect Involvement of Oracle XDB

Development team

xContacts with XDB and interMedia product

management teams established

xFirst specific dissemination activities of the

WP2.3

Oracle Technology Network Public (IT

professionals) meeting in Barcelona MAR-2003

xPresentation of XDB features

xSpecial presentation of CUIDADO project


15/18

WP2.3 Planning

xDevelopment of modules Strategy and approach fully agreed by IRCAM Online

Systems, Creamware and Oracle

First calendar to be presented by Pascal Mullon TODAY

xConstraint: Oracle is low on remaining resources Should reach to cover reference MEDEE implementation

although precise scope must be set

Development will have to stop when resources have beenfully consumed

Priorities need to be set accordingly, so that MUST-HAVEmodules can be available by the end of Oraclescontribution

Close monitoring enabled with coordinator

xPending agreement on the development scope


16/18

WP2.3 Open Issues

xFunctional: Still not fully closed dependencies Scientific modules: Complete definition of the MPEG-7

elements and schemas to be used

MPEG-7 / MEDEE analysis. Some functionalities still to bedefined at a very low level of detail.

xImplementation: Scope not precisely determined Unexisting full list of functions that require development

Development cost unknown

Request for a centralized repository of valid example XMLdocuments

xWP Management: Partners low on developmentresources

Specially Oracle is low on remaining WP2.3 resources

Development priorities set accordingly to this constraint


17/18

WP2.3 - Conclusion

xA complete solution has been analyzed and defined

xAn important part is supplied by appropriately usingstandard database features

Keep maintenance costs low

xSpecific required extensions have been preciselyidentified

xSolution for implementation of extensions seems tobe clear

xDevelopment strategy/approach defined

xSome open issues at low level of detail

xScope problem must me closed

xRisk of partners low on remaining resources

Development priorities set accordingly to this constraint


18/18

Documents

ORACLE_slides