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Unit 3 – Information Systems

Aims

By the end of this session you will be able to understand how data is transformed into Information

Objectives

1. Demonstrate how data is transformed into Information.

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Transformation of Data into Information

Now you know the difference between data and information it is important that you understand how data is transformed into information.

DataInformation

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Stages of Transformation

There are 5 different stages that data must go through to become information. Click on each one to find out more.

1. Collection

2. Storage

5. Presentation

4. Retrieval

3. Processing &

Manipulation

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1. Collection of Data

Data can be collected physically using paper forms.

Data can be collected Electronically through a computer.

These could include:

Application Forms, Registration Forms, Questioners, Interviews, Observations, Discussions, Online – WebPages.

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2. Storage of Data

Data needs to be organised so that it will be easy to retrieve.

Data can be stored electronically (Video Tape, Cassette, Disks) or on paper (Archives, A4 Files).

Remember, the protection of the data is just as important.

What are the advantages of storing data electronically?

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3. Processing and Manipulation of Data

The type of data and how it will be used determines how it is processed.

Calculations can be done on data that contains some numbers.

Data with numbers or text can be sorted, categorised or manipulated (I.e. databases).

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4. Retrieval of Data

After being processed and manipulated data must be retrieved.

Database information can be retrieved using queries or filters.

If data is moved then you should say where you got it from (attributed).

Keywords can be used to search information.

List 4 websites that allows keyword searches.

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5. Presentation of Data

The way information is presented is important. Why?.

List 5 software packages that could be used to present the annual sales figures from Watestones

branch stores.

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Transformation of Data into Information

Now you understand the 5 stages of transformation, when transforming data into information but do you remember them and what each stage involves?

Complete the associated handout that comes with this Lesson.

DataInformation

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