Information On Line Transaction Processing

d) The information is acquired on the data bus and send it to TDO. (Alghafli, Jones, and Martin. 2012).

the following is true about the process of read data, as described in the chapter?

Data in computerized form is discoverable, even if the paper “hard copies” of the information have been produced. The producing party can be required to design a computer program to extract the data from its computerized business records.

24) Before it can be loaded into the data warehouse, operational data must be extracted and

Extraction: This is the process of extracting any evidence that is found relevant to the situation at hand from the working copy media and subsequently saved to another form of media as well as printed

It uses various techniques when doing this such as; Logical data modelling, Data flow modelling and Entity behaviour modelling. It is there to improve their overall quality systems so that it may be more effective. Logical data modelling consist of identifying, modelling and documenting data for the system analysis gathering. The data is further categorized into entities and relationships.

A data warehouse is a large databased organized for reporting. It preserves history, integrates data from multiple sources, and is typically not updated in real time. The key components of data warehousing is the ability to access data of the operational systems, data staging area, data presentation area, and data access tools (HIMSS, 2009). The goal of the data warehouse platform is to improve the decision-making for clinical, financial, and operational purposes.

The databases are required to be accessed very properly; the broken or fragmented data needs to be recovered. For querying and reporting purposes the data should be easily accessible

Data independence is the ability to make changes in the definition and organization of data without requiring any changes in application programs. Each higher level of the data architecture is immune to changes of the next lower level of the architecture. Physical and logical data independence differ in type of changes that can be made without affecting working of higher levels.

The data is then sent back through the system to the original user. The information that is on the data coming back could have came from a wide array of sources such as books, financial markets, embedded chips or even made up by someone trying to fool the user. The History? The Internet is first

Transaction processing systems (TPS) provide data collection, storage, processing and outputting functionalities for the core operations of a business. These functions are necessary for operational managers. In that way the data generated by the TPS answers general business questions and to track the flow of transactions throughout the business. TPS can keep track of such systems as payroll, inventory, sales, shipping and other vital business systems.

As the reader has got now all the information available about theory and methodology, it’s time to move on to the concrete part. Indeed, next header explains the extraction of data.

INPUT: It gather data 's from the environment to the system and is process to output.

Purpose: It includes converting existing data for use in a new system. Verification of the old data becomes imperative to the useful computer system. Data input and data verification could be done in this phase. By

ii) Preparation of the text : This step involves cleaning of the extracted data before analyzing it. Here non-textual and irrelevant content for the analysis are identified and discarded