Multimedia Based Information Systems

a. Information systems
Information System consists of two words namely Systems and Information. The system itself is a composite of several sub-systems that aim to achieve one goal. Information means something that is easily understood by the recipient. Information Systems has a meaning system that aims to display the information. In the old days before there is a computer system then the system this information had already been there and run well.

b. multimedia
Multimedia comes from two words and that is multi media, multi media means and means some facilities or equipment. The word multimedia itself was already there before the computer as it is today and more in use in the world of multimedia entertainment such as theater performances that have been around a long time is a theatrical form that is supported by many tools such as loudspeakers, stage lighting, moving images in the background and so on. In the world of home electronics also known multimedia digital television, which means the TV can support the use of many tools such as receiving input from a cd player, game player, and so forth. Log into the computer world is booming with appendage appendage when multimedia sound card products, product tv card, graphics card products into a computer function as an expansion in the decade of the 90s. At that time computers become more flexible usage is not only to make computing activities such as attendance at the beginning of the beginning of the computer but has additional functions to play a song, to receive television signals, plays movies and so on. This product is sold in the market and currently all the additional devices are becoming the standard for all computer products, especially the Personal Computer. For additional device server products are virtually not used.

c. Multimedia Databases
Multimedia databases is an expansion capability database that can store not only text data but can be sounds, images, animations and other multimedia data. Support databases that can store data in multimedia formats can be provided by Oracle, PostgreSQL, MS SQL Server and some other products. The format is currently supported to be stored properly as one of the values of the database field is a BLOB, within this field we can store the data in the form of images. This support has been provided by Microsoft SQL Server since version 6.5 [REFERRAL], PostgreSQL 7.2 [REFERRAL] also support the image type. Multimedia data storage format is also used to do with tricks to save the address (path) in one of the fields in the database. This trick is usually done by the programmer to alleviate / reduce the size of the database so that application performance is getting better. In case the actual BLOB data storage also performed the same trick, only storage management performed by the database engine, so that from the programmer is seen that the BLOB data is stored in the field of type BLOB.
The problems that arise when the data in this multimedia format is stored in a database at the time of retrieval / retrieval of data. Is it possible to input a query request photos, or a voice sample or a sample animation. In such a case different from the query with which to easily input text searching is done by one of the criteria values in the database field of type number, date, boolean, or text. This is because the operation of comparison of data text, dates, booleans or numbers can be easily done. For conventional data types such as string, numeric, date and boolean searches have long supported by the language SQL (Structured Query Language) standard currently used. Unlike the complex data type that is used to store multimedia data are not yet supported retrievalnya using standard SQL language. For it's one building that software should be prepared to implement a multimedia-based information system is a database engine that can support this process.
While there are several methods that have been developed to perform a search image data and voice. Like the image search method using wavelet algorithms [REFERRAL] that has been developed by several researchers. This method can also be developed to perform data retrieval that contains the sound [REFERRAL]. Did not rule in the future this method can be developed to perform data search data with other multimedia content. Search by wavelet method is suitable in use to perform data search large volumes of data items.

d. Multimedia information
Information in the form of multimedia is the information conveyed by combining several elements of information. In the conventional presentation of information, information is presented using only one medium only as text (text) only, voice only or image only. One example of a multimedia presentation of information is not is when there is a call to someone at a station that was announced over the microphone as one example of the presentation of information through sound. Another example is when the information appears on a computer screen that lists the students who get the value of E, you'll see the form of text information. In some conditions of such information is considered sufficient. The problem is when an information system is built with the output information which is not presented only using text only. It was the presentation of information must use a richer form by blending a variety of media are available [REFERRAL].

e. Multimedia input
In addition to multimedia can be used to convey information so that the information presented in multimedia form as the output of information systems. Input or input into the system can also be input data of multimedia data. Data is current data can be entered into the computer not only through the keyboard and mouse but can get into the computer through a variety of tools / devices to capture multimedia data. For example cameras, scanners, light sensor, telephopne home, mobile telephon sound sensors, barcode readers and so forth. By means of input devices are then input to the system will become increasingly rich, for example if the system is available in the recidivist database of several thousand, and then try to find one Satui recidivists with a sample picture then the system can do a search with input via a scanner. The algorithm used to perform such a search can be used wavelet algorithms to perform image querying.
Multimedia input needed to perform data capture (capture data). Multimedia data with data richer than the conventional data capture equipment for multimedia data is also different from the means of capturing data commonly used as a keyboard and mouse. To capture the image (image) is used snanner, digital photographs to satellite images, while the microphone used to record sound and forwarded to other equipment such as mixers for sound processing and so forth. To capture moving images used a video recorder with its variations.

f. Multimedia-Based Information System
Multimedia-based information system is an information system with the concept of using the input and output with the form of multimedia data. Specifications changes the technology used in the input block, the block of data base and output blocks are modifications made to characterize multimedia-based information systems with information systems that are not based multimedia. The processing of input is then stored in a database and then removed the device (device) with a variety of forms remain to be done by machine. The machine that is meant here is a computer device with berbaai architecture. Human role in multimedia-based information systems remain outside the system as a user. Both as a user to perform / provide input (handles data input activity) as well as users who act as consumers of information. Humans as the owner of this information system in terms of multimedia-based information systems did not enter into a provider of information systems and information processing. Human role in this system once again emphasized here only as a provider of data and consumer information.

h. conclusion
- Based Multimedia Information System is the development of information systems
- Modifications carried out on multimedia-based information system is to apply multimedia technology in the input block, the block of data base and output block
- Current data base technology has supported the data stored with the new data type is an image (image), sound (voice) or animation
- Mechanical Retrieval (retrieval) in the database with new data types data type is still wide open to doing research in this field.