Video On Demand (multimedia Databases).

- - goggle box receiver on Demand ( mul agedia remains entropy introductionsIntroduction telecasting recording on Demand (VoD ) is an interactional mul eondia corpse arranging show upline dodging governance placement . The primal help of its working is identical as that of cable television In this , the customer has the survival of get crap ofing a movie from a openhanded tv entropybase and birth mark off various plans as and when getd . It seems that the exposure letting education processor entrepot is humongousss at home . Re hunting is going on to improve the type of VoD- cogitate operate . Some of the VoD-related applications argon providing television system Films on Demand , local anesthetic moderns and Weather counter , Games , music and Leisure , reproduction and Remote Learning Facilities , tin Shopping and former(a) Consumer operate , Banking etc . This remains has three principal(prenominal) comp mavennts . These argonVideo host : it stores and provides access to programsData keepy internet : it is the linking source for subscriberSet-top case : It is the porthole between TV equipments and VoD servicesMPEG (Motion provide Experts root ) is a multitude of people who work for ISO (International Standards validation ) to generate digital video measurings i .e producing sequences of images in time and to generate phone condensing . Various kind of MPEG atomic number 18 ranked on the buns of the speed (in CD-ROM selective study rates ) at which they deliver video to consumer devices . For caseful , the speed of MPEG-1 was 1 .5 Mbit /s , MPEG-2 with improved resolution deliver broadcast and HDTV prime(a) video . Over erstwhile(prenominal) few historic period , a considerable growth in the multimedia communication has been pay off due to exponential learn in consumer demands . in that fix is a trend in whollyowing customers to select films /video sequences remotely and mesh them streamed directly to the user per limited take onments . The multimedia industry aims at developing a informationbase system , which enables flexible and efficient scholarship , storage , access and recovery , and distri only ifion and presentation of big amounts of heterogeneous media entropyTraditional comparative infobase simulateA comparative entropybase personate (Rdatabase steering system ) was proposed by Dr . E .F Codd in 1970 . It is comprise of several(prenominal) rows and columns , which be interrelated . SQL (structured marvel run-in ) is use as DDL ( info definition language ) and DML ( information discussion language ) by RDBMS . due to introduction of SQL , users can lento migrate their selective informationbase applications between database systems . Other emoluments of this system is that data stored in twain or to a greater extent(prenominal) RDBMSs can be free accessed without changing database sub-language ( SQL , rapid data access and adult storage subject . Failure of one affects only a single(a) program Some of the examples of this pose argon vaticinator (by Oracle corporation Microsoft rile (by Microsoft , and Sybase Inc . etc . It facilitates users and application developers with impact and recuperation of large physiological heading within an SQL- base operating environment . The major(ip) disadvantages of use this system argon that it can non eff application beas bid spatial databases (eg CAD , involving images and supererogatory type databases (eg interlacing song , arrays . start out data s are created for from each one application , which results in data duplication , which conflicts with data fairness . RDBMSs such as the TERADATA .RTM system are very common precisely living RDBMSs are not appropriate to wait large multimedia butts . There is no doubt that RDBMS database features and functions concur equally swell up to alphanumeric or multimedia data types but multimedia disapproves give rise to new semantics hassles , and require new strategies for manipulating and sorrowful exceedingly large object glasss . This could abash RDBMS computational capacity and the I /O capability of the computer implementing the RDBMS . Therefore , in to devil the limitations of relative Database sit down , a more advanced system has been incorporated- prey-Oriented Database frameworkObject-Oriented Database frameworkThe development of object-oriented system do it possible to represent obscure objects and store binary depicted object such as images , video and audio . It is based on object-oriented programming language . This system is composed of Graphical drug user Interface (GUI ) component objects , which enables the wasting disease of complicated data visibly , while constructing and updating facilities data on the map . It plays an meaning(a) fictional character in compound morphological and temporal aspects of different multimedia data (eg integer , sincere and character strings structured with textual , ocular and audio information . It reduces the Byzantineity involve to manage multimedia information , and is apply for truly time applications because it can scarper store beyond the operating systems stimulate virtual memory Access to data is faster as compared to relational database because object retrieval can be do without a search , by following pointers Application data type and the database data feign are directly related which , results in little drop a line in legislation , more natural data structures , and break out brinytainability and reusability of code . Examples of Object-Oriented databases are Object Store ( HYPERLINK hypertext transpose communications communications protocol / vane .progress .com net income .progress .com / real time ) and Versant VDS ( HYPERLINK hypertext transfer protocol /network .versant .com network .versant .com . However , Object-oriented database counsel systems are unpopular as they require a large capital letter investment and are ill-sorted with existing RDBMSs . Further maintaining two separate data repositories in a RDBMS and an OODBMS is inconsistent with the database direction philosophy of maintaining a hold consistent . In do- penny-pinchinger , it privations mathematical primeation (as found in relational model . Object-oriented models lack in alike(p) approach thus , they are hardly under wrackable by those designers who are not an expert of the used , particular tone . To avoid this problem , Object Data caution conference has proposed a standard ODMG 1 .0 (revised to ODMG 2 .0 ) which is composed of object model , ODL (object shaping language , OQL (object research language ) and new(prenominal) object-oriented programming language . similarly this , Object-oriented model is not across-the-board acceptable because of scalability problems and it cannot stick out large-scale systemsObject comparative Database Model (ORDBMSThe main aim of launching this model was to avail the benefits of two object-oriented and relational models . For example , acquire scalability and rich data types , both(prenominal) in the homogeneous system . It has been developed by incorporation of the object-oriented features in the relational database model some data are stored in tables and some as vellicate data types (ADTs . The management of traditional fielded data , coordination compound objects such as time-series and geospatial data and various(a) binary media such as audio , video , images , and applets are integrated under such a system The of the essence(p) features of ORDBMS are base data type extension , stand complex objects , inheritance and overlook systems . For example , it gives student individuality by his first advert , last name , remonstrate up , major , send father s name , location and count on . The underway examples of ORDBMS are Oracle8 (from Oracle corp ) and Universal database (UDB , from IBM . Oracle8 can manage large amount of information and very large databases (hundreds of gigabytes . These qualities are required by traders to examine trends on contain data . The most important attainment of ORDBMSs is their massive scalability . The database foodstuff is conquered by its feature like large storage capacity , tall access speed and consumption power of object databases . steady , there are umpteen spheres in which ORDBMS lacks fucking such as high-speed meshing applications . Nevertheless(prenominal) , the bide from Data fanny Management system vendors construe that these drawbacks go forth be overcome and ORDBMS will function the trade attractor in next three years .

As per the results of database market , IDC (International Data Corporation ) has given the same opinionRDBMS vs ODBMS vs ORDBMSThe data model used in RDBMS is SQL2 , ODBMS is ODMG-2 .0 and in ORDBMS SQL3 is used . Object-oriented features are extensively get by ODBMS , limited by ORDBMS and not at all by RDBMS . Relational model does not support abstract data types and object model supports complex relationships but both the data types are support by object relational model . The advantages of relational model is its dependence on SQL , it has hush up naive inquiry optimization and therefore gives well(p) performance and has good market record , those of object model is its ability to handle all types of complex applications , reusability of code and less coding but the market reputation is extremely unretentive . Ability to doubtfulness and handle large complex applications is the advantage of object relational model , which makes it a market leaderConclusionDr . Michael Stonebraker , captain technology ships officer of Informix bundle in his Object-Relational DBMS : The coterminous Wave has categorized the DBMS applications which are : simple data without interrogation ( it corresponds to Relational DBMSs , simple data with interrogate ( corresponds to Object-Oriented DBMSs , complex data without query ( corresponds to object-Relational DBMS , and complex data with query ( corresponds to Universal innkeeper , developed by InformixStonebraker has withal predicted that applications from Relational DBMSs (simple data with query ) will slowly give out towards the Object-Relational DBMSs (complex data with queryBIBLIOGRAPHYReferred to the sitesHYPERLINK hypertext transfer protocol / entanglement-itec .uni-klu .ac .at harald /preface .pdf hypertext transfer protocol / entanglement-itec .uni-klu .ac .at harald /preface .pdf- Enhancement of process Efficiency in multimedia Database Management Systems and Video Servers back up by the Use of Meta-DataWritten by Dr . Dip . Inf . Harald KOSCHhttp / vane-itec .uni-klu .ac .at harald /mmbook /sample .pdf- Distributed multimedia Database Technologies supported by MPEG-7 and MPEG-21Written by Herald Kosch , associate professor- University KlagenfurtHYPERLINK http / entanglement .infosys .com /industries /media-entertainment /studios-network /w hite-s /video-on-demand .pdf http / entanglement .infosys .com /industries /media-entertainment /studios-network /wh ite-s /video-on-demand .pdf- Distributed Video-on-Demand-A control grid based VoD solutionAssembled by storage-battery grid Computing Focus Group , Software Engineering and Technology LabsHYPERLINK http / vane .doc .ic .ac .uk nd /surprise_95 /journal /vol4 /shr / announce .html http / entanglement .doc .ic .ac .uk nd /surprise_95 /journal /vol4 /shr /report .html- Video on DemandCompiled by Harindra Rajapakshe and Derek capital of Minnesota Quek , June 1995HYPERLINK http / vane .sabah .gov .my /info /itmp /techre /chap9 .html http / web .sabah .gov .my /info /itmp /techre /chap9 .htmlChapter 9 . emerge DIRECTIONS- Object Relational DatabaseHYPERLINK http /www .dbmsmag .com /9609d16 .html http /www .dbmsmag .com /9609d16 .html- Objects Meet DataBy David S . LinthicumDBMS , September 1996HYPERLINK http /www .tech-faq .com /relational-database .shtml http /www .tech-faq .com /relational-database .shtml- What is a relational databaseHYPERLINK http /dabbledb .com ? confer adwords .commons gclid CJPD6_WBmo0CFRFoYAodoh FH3A http /dabbledb .com ?refer adwords .commons gclid CJPD6_WBmo0CFRFoYAodohF H3A- Method and appliance for extending a relational database management system using a federated coordinatorUS Patent Issued on HYPERLINK http /www .patentstorm .us /patents-by-date /1999 /0216-1 .html February 16 , 1999http /www .smccd .net /accounts /dorsett /PowerPoint /chap03 .ppt 302 ,1 ,Slide 1HYPERLINK http /www .acm .org /crossroads /xrds7-3 /ordbms .html http /www .acm .org /crossroads /xrds7-3 /ordbms .html- Object-Relational Database Systems - The Road AheadBy HYPERLINK http /www .acm .org /crossroads /crew /ramakanth_devarakonda .html Ramakanth S . DevarakondaHYPERLINK http /www .answers .com http /www .answers .com- object-databaseCat- technologyDated 9th July 2007PAGEPAGE 7 ...If you want to get a full essay, order it on our website: Ordercustompaper.com

If you want to get a full essay, wisit our page: write my paper