Data Processing

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Data Processing (data processing) is a type of processing that can convert data into information or knowledge. Processing this data often use the computer so it can run automatically. Once processed, this data usually have an informative value when expressed and packaged in an organized and neat, then the term is often described as data processing information system. These two terms have similar meanings, data processing process and manipulate raw data into information (processed), while the information system using data as input and produce information as output products.






Data File Types
· Master File (File parent)
1. Permanent
2. Contain static data (rarely changing) and non-static (changing each time the transaction occurred)
3. Example: stock item
· Transaction File (file transaction)
1.Kumpulan transactions that are created from source documents
2.Digunakan to update the master files
3.Contoh: goods orders
· Reference files (file reference)
1. Simply permanent
2. Used for reference purposes
3. Example: list price, name and address

Hierarchy of Data:
· Database: a collection of different types of records that have relationships between records. stored in a computer in a systematic way so that it can be checked using a computer program to obtain information from the database. structured explanation of the types of facts that are stored in it.
· File / file: a collection of records or record data related to or associated with a particular subject. For example, purchase order files, employee data files, file sales.
· Record: a set of fields / attributes / data items related to a particular object. A set of fields that contain data about people, places or things
· Field / attribute / data item, is the smallest unit, called data, which can not be split again into another unit that significantly more Specific.
Online processing: Namely Processing files that do online in each data file exists and is directly done by the user in the latest update files directly in the process as well as directly tersebarkan data or automatically update data files such as master files. Those advantages are

    * Data will not be stale on arrival time at the computer

    * ¨ The files will reflect the image sets

    * ¨ certain circumstances a more up-to-date and more real

    * ¨ The results can be obtained much faster processing

Processing ofline: Namely Processing files are handled offline and prosesan data that do not directly update the database, but prosesan data offline at doing periodically and gradually as transaction files and reference files.
The weakness

    * · Data will be stale when arriving at the computer

    * · Not up-to-date and less real

    * ¨ The data processing is rather slow in getting