A-Level Computing#BristolMet

Session Objectives#14

MUST Identify different forms of output from a system

SHOULD Describe the suitability of different outputs for given situations

Explain the meaning of data validation and data verification, giving examples of each.

Design and create an online form using validation techniques.

A-Level Computing#BristolMet

Automatic vs Manual Input

Starter: Sort the following table

Manual Input Automatic Input

Can you describe a typical use for each device???

Keyboard

Mouse OMR

OCR

MICR

Microphone

A-Level Computing#BristolMet

Forms of output

In pairs discuss the various forms of output you can get from any given system.

Prepare explanations of the forms of output that would be suitable in educational software aimed at teachinga) Different subjects b) Different age groups

Output Forms

video

sound

Graphics/image

tables

text

animation

A-Level Computing#BristolMet

Data Validation and Verification

GIGO – Garbage In Garbage Out is the principle that a system is only as good as the data that goes into it.

Data Validation – Methods to reduce data entry errors.

Data Verification – Is checking that the data entered is possible and accurate.