Data processing

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What is data processing

Collection and storage of data

Editing and updating data

Sorting and searching

Output and disseminate

Batch processing

Large amounts of transactions at once

Efficient use of resources

Process is not instant

Uses master and transaction files

Advantages of batch processing

Efficient uses of resources

Lower operating costs

System can handle large amounts of data at once

Disadvantages of batch processing

Data is not up-to-date

An error means whole batch needs to be reprocessed

Not suitable for immediate feedback

Master files

Main files on a system

long term data

Transaction files

Data that needs to be processed in current batch

temporary data

Online processing

Up-to-date

Accurate

Fast processing

Advantages of online processing

Data is up-to-date

Almost immediate feedback

Quick response to changes

Disadvantages of online processing

Expensive

More people leads to slower system

High chance of data corruption

Real-time processing

Data processed instantly

Crucial for systems needing instant results

Immediate

Advantages of real-time processing

Immediate response

Essential for emergency response

Improves efficiency

Disadvantages of real-time processing

Very expensive

System failure leads to serious consequences

Very complex