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Data Capture

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Devise an Information Sheet on the different methods of Data Capture manual ... It is time-consuming ... All banks use MICR for processing cheques. ... – PowerPoint PPT presentation

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Title: Data Capture


1
Data Capture
2
Lesson objectives
  • WALT
  • Understand different methods of how data is
    captured key to disk MICR OMR OCR speech
    recognition.
  • Know what makes good data capture form design.
  • WILF
  • Create a well designed data capture form for your
    business.
  • Devise an Information Sheet on the different
    methods of Data Capture manual and automatic
    using Publisher.
  • Extension Research advantages of different
    methods of data capture Create Information
    Sheet.

3
What does data capture mean?
  • Getting data into a form that can be processed by
    the computer to produce information.

4
Examples of data capture outside world
  • Ordering goods online or mail order
  • Schools new student
  • Banks/building societies making payments
  • Warehouse/business new stock arriving
  • Clubs, gyms new members

5
Types of Data Entry
  • Manual data entry person has to do something to
    enter the data e.g. using keyboard to enter data
    into database.
  • Automatic data entry uses data that is already
    in a form that can be accepted and processed by
    the computer e.g. read data contained on bar
    code.

6
Keyboard data entry
  • the most common input device
  • suitable for a wide range of applications
  • entering programs
  • typing all kinds of documents using a word
    processor
  • entering personal details of customers or
    patients at a hospital, etc.

7
Keyboard data entry Disadvantages
  • Data entered at a keyboard is commonly copied
    from a source document, and as such
  • It is easy to make transcription errors that
    is, copy the data wrongly from the document
  • It is time-consuming
  • Data entry operators who enter data all day every
    day are prone to repetitive strain injury (RSI),
    a condition which renders them unable to do any
    further data entry

8
Voice data entry
  • The user speaks the text into
  • a microphone
  • Special software interprets the text and displays
    it on a screen
  • Text may be edited using the keyboard and
    exported to a word processing package such as
    Word.
  • The accuracy of the voice recognition system is
    improved by training it to a particular users
    voice

9
Scanners and OCR (Optical Character Recognition)
  • An optical scanner can be used to scan graphical
    images and photographs
  • Software can then be used to edit or touch up the
    images
  • Scanners can also be used to read typed or even
    hand-written documents

10
Scanners and OCR (continued)
  • OCR (Optical Character Recognition) software can
    then be used to interpret the text and export it
    to a word processor or data file
  • Scanners are also used to input large volumes of
    data on pre-printed forms such as credit card
    payments, where the customers account number and
    amount paid are printed at the bottom of the
    payment slip.

11
OMR (Optical Mark Recognition)
  • Capturing data by shining a beam of light onto
    the document the scanner is able to detect a
    marked area.
  • Examples
  • Answer sheets multiple choice question exams.
  • Lottery tickets.
  • Old system of registering students.

12
Magnetic Ink Character Recognition (MICR)
  • All banks use MICR for processing cheques.
  • Along the bottom of a cheque the banks sort
    code, customer account number and cheque number
    are encoded in special characters in magnetic
    ink.
  • The amount of the cheque is encoded in magnetic
    ink when it is handed in at a bank.
  • The cheques can then be batch processed extremely
    fast by high-speed MICR devices that read, sort
    and store the data on disk.

13
What is the data used for?
14
MICR(continued)
  • MICR has several advantages
  • for processing cheques
  • It is hard to forge the characters
  • The characters can be read even if the cheque is
    crumpled, dirty or smudged
  • The characters are readable by humans, unlike bar
    codes

15
Bar Codes
  • Bar codes are a series of parallel black and
    white lines used on food and other products such
    as books.
  • The black and white lines represent numbers. A
    bar-code reader (scanner) is used to input
    bar-codes.

16
Some uses of bar codes
  • Medical
  • bar codes used to identify blood and other
    samples
  • Libraries
  • used to record loans and track stock
  • Banking, insurance and local government
  • for document control and retrieval.
  • Manufacturing
  • work in progress tracked using bar codes

17
Some benefits of automatic data capture
  • Process high volume of data.
  • Processed quicker.
  • Less errors.
  • Saves money as less staff.
  • Can be left to run automatically over period of
    time (e.g. batch processing of cheques).

18
Plenary
  • Spider diagram of all methods of data capture you
    know of.
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