Data, Information and Databases

maryamxjay
Mind Map by maryamxjay, updated more than 1 year ago
maryamxjay
Created by maryamxjay about 6 years ago
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A-Level ICT Mind Map on Data, Information and Databases, created by maryamxjay on 05/13/2014.

Resource summary

Data, Information and Databases
1 Data Capture & Structure
1.1 A database is a way of storing information in an organised, logical way.
1.1.1 A data capture form is designed to collect specific data.
1.1.1.1 Data capture forms often use boxes or a set amount of spaces and occasionally provide examples too. This is to make sure each field is completed correctly.
1.1.1.1.1 This way, it's quicker to type in, uses less disk space, and is easy to validate.
2 Definitions
2.1 Data ; facts and statistics collected together for reference or analysis.
2.2 Information ; facts provided or learned about something or someone.
2.3 Databases ; a structured set of data held in a computer,
3 Data Security
3.1 Data may get...
3.1.1 Lost or damaged during a system crash.
3.1.2 Lost or become corrupted by computer viruses.
3.1.3 Destroyed by natural disasters, acts of terrorism, or war.
3.1.4 Corrupted as a result of faulty disks, disk drives, or power failures.
3.2 Keep data secure by...
3.2.1 Making regular backups.
3.2.2 Running anti-virus softwares.
3.2.3 Using a system of passwords so that access to data is restricted.
3.2.4 Avoiding accidental deletion of files by write-protecting disks.
4 Data Validation & Vertification
4.1 Verification is performed to ensure that the data entered exactly matches the original source.
4.1.1 Proofread data
4.1.2 Double enter data
5 Data Logging
5.1 A collection of data over a period of time.
5.2 Accurate, can be set to take multiple readings in short amount of time, can be done without human intervention.

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