3.3.2 BatchInteractiveReal-Time

Batch, interactive and real-time processing systems in terms of processing, response time and user interface requirements.

The Wedding outfitter uses batch processing to create invoices. (a) Describe batch processing. [2]…………………………………………………………………………………………………… (b) Explain why the wedding outfitter uses batch processing to create invoices. [4]……………………………………………………………………………………………………

The user inputs data into the system when prompted to do so. Their actions are limited to what the system allows them to enter.

People queue waiting for the bus. When they get on, the driver asks where do they want to go? They pay their fare and the next person steps up!

Self service tills You cannot scan the next one until you have put that item in the bagging area. Or your child sits on it!

Data is processed within a given maximum time limit (usually under 4 seconds). The time limit will depend on a number of factors: – User requirements – Type of processing – Amount to process

It is normally assumed that data will be processed as soon as it is received. This could result in data being updated straight away on a database, or an action taking place.

A good example of real-time processing is in auto-pilot systems. They wouldn’t be very useful in the following example…

Oh look, we’re heading towards that plane! I’ll save that information for later…

The management of the airline needs to update the check-in system to deal with passengers more efficiently. Explain why the check-in system will have to use real-time processing. …………………………………………………..…………………………………………………………………… ………………………………………………………………………………………………………………………… ………………………………………………………………………………………………………………………… (4)

Create and complete the following summary table: BatchInteractiveReal-Time ProcessingWhen the system is not busy and offline Each transaction completed before the next one Data is processed as soon as it is received. Response timeDelayed: between data being inputted. Can be overnight or days. Dependant on action from end-user. Very quick, based on user requirements, but usually less than 4 seconds User interface requirements Usually code based.Graphical User Interface Usually based on users requirements. BatchInteractiveReal-Time Processing Response time User interface requirements