OPTICAL CHARACTER RECOGNITION
An alternative data entry method to the keyboarding of text or graphical input is optical character recognition (OCR). It uses scanning equipment to "read" a page of printed text and translates each character into its digital equivalent.
Conversion of the text in the document to machine-readable formats may be necessary where information contained in the document must be shared, when a text search is performed, or where changes to a document or forms are needed.
OCR algorithms, though they have radically improved in terms of recognition and speed, still suffer from enough inaccuracy that they cannot be fully automated. A good OCR is trainable, that is its interpretation errors can be identified and corrected. However, OCR is still not at the point where it can be relied on to fully recognize a complete document without error. This is not a major problem if the text is relatively consistent and uses fonts that the package can handle without trouble.
Even when processing relatively simple documents, an OCR requires an operator with some degree of specialized knowledge about the subject of the document to make informed decisions about misrecognized text. When errors occur, even with only one or two per page, it may well be more cost-effective to use standard data entry which does not require specially trained operators.
A special case of optical character recognition is handwriting character recognition. As an example, in order to monitor and evaluate product success, companies conduct store surveys for a variety of factors, including shelf space, product positioning, inventory, and promotions. Traditionally the findings are gathered using paper forms and mailed back to company headquarters where they are entered into the computer system and tabulated to generate reports. This process takes several weeks. Last year cereal giant Kellogg's began to equip territory managers with a pen-based computer with no keyboard to save time and money. They now enter product information directly on site into a machine readable form. At night they connect with corporate headquarters via modem and send their information directly into the computers. They can access past records online.
They no longer carry around blank forms and folders of past records. Another advantage is e-mail. Messages and memos can be sent between people each night. It is a computer that can be used as a notebook where portability is a must and the keyboard-based interface is an obstacle[6].
OPTICAL CHARACTER RECOGNITION
An alternative data entry method to the keyboarding of text or graphical input is optical character recognition (OCR). It uses scanning equipment to "read" a page of printed text and translates each character into its digital equivalent.
Conversion of the text in the document to machine-readable formats may be necessary where information contained in the document must be shared, when a text search is performed, or where changes to a document or forms are needed.
OCR algorithms, though they have radically improved in terms of recognition and speed, still suffer from enough inaccuracy that they cannot be fully automated. A good OCR is trainable, that is its interpretation errors can be identified and corrected. However, OCR is still not at the point where it can be relied on to fully recognize a complete document without error. This is not a major problem if the text is relatively consistent and uses fonts that the package can handle without trouble.
Even when processing relatively simple documents, an OCR requires an operator with some degree of specialized knowledge about the subject of the document to make informed decisions about misrecognized text. When errors occur, even with only one or two per page, it may well be more cost-effective to use standard data entry which does not require specially trained operators.
A special case of optical character recognition is handwriting character recognition. As an example, in order to monitor and evaluate product success, companies conduct store surveys for a variety of factors, including shelf space, product positioning, inventory, and promotions. Traditionally the findings are gathered using paper forms and mailed back to company headquarters where they are entered into the computer system and tabulated to generate reports. This process takes several weeks. Last year cereal giant Kellogg's began to equip territory managers with a pen-based computer with no keyboard to save time and money. They now enter product information directly on site into a machine readable form. At night they connect with corporate headquarters via modem and send their information directly into the computers. They can access past records online.
They no longer carry around blank forms and folders of past records. Another advantage is e-mail. Messages and memos can be sent between people each night. It is a computer that can be used as a notebook where portability is a must and the keyboard-based interface is an obstacle[6].
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