APSI 11 INPUT DESIGN AND PROTOTYPING.PPT

8/10/2019 APSI 11 INPUT DESIGN AND PROTOTYPING.PPT

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Program S1 – Teknik IndustriLSIK - TI 1

INPUT DESIGN AND

PROTOTYPING

Minggu ke - 11

TI 3241

Analisis dan Perancangan Sistem Informasi




2. Explain difference

between data capture, dataentry and data input

4. Apply human factors to

the design of computer inputs

INPUT OUTPUT

1. Define appropriate

format and media for a

computer input

3. Identify and describe several

automatic data collection

technologies

6. Select proper screen-based

controls for computer inputs

5. Design internal controls for computer

inputs 7. Design a Web-based controls for inputs

attributes that are to appear on Graphical

User Interface

Input Design and Proptotyping




INPUT DESIGN CONCEPTS AND

GUIDELINES

INPUT DEVICES:

Keyboard

Mouse

Touch Screen

Sound

Speech

Optical Mark

Magnetic Ink

Electromagnetic

Smart Card

Biometric

Input begins long before the data arrives

at the device

To actually input business data into a computer,

the systems analyst may have to design source

documents, input screens, and methods and

procedures for getting the data into the

computer (form customer to form data-entry

clerk to computer




Data happens. It accompanies business events called transactions:

Orders

Time Cards,

Reservations…

Data Capture is the identification and acquisition of new data.

It’s always best to capture the data as soons as possible after it originates

Historically, special paper forms called source documents were used

Source Documents are forms used to record business

transactions in terms of data that describes those transactions

Display screens that can duplicate the appearance of almost any paper-based

form are gradually replacing the paper forms. This trend is being acceleratedby Web-based e-commerce and e-business.

The layout and readability of source documents will affect speed of data entry




Data Entry is the process of translating the source data or document

Into a computer-readable format

Because data entry used to be 100 percent keyboard-based, businesses employed

armies of data entry clercks. As on-line computing became more common, the

Responsibility for data entry shifted directly to system users.

Batch Processing used to be the

dominant form of data processing

In batch processing, the entered data is

collected into files called batches. Each file

is processed as a batch of many

transactions.

Entered data must subsequently beprocessed- data processing

Most batches are recorded at disk

Files (key-to disk) or on magnetic

Tape (key-to tape)




On-Line Processing Today most (but not all) information systems

Have been converted to on-line processing.

In on-line processing, the captured data is processed immediately

Initially, data was centered at terminals. Today, that same data is captured on PCs

and workstations to take advantage of their ability to perform some of the data

validation and editing before it gets sent to the server computers.

Because of PCs, we rarely hear the term on-line processing any more. We usually

Hear the term client/server, where the PC is the client.




Most of today’s applications present the user with a PC-based graphical user

Interface (GUI). Micrfosoft Windows is the dominant GUI in today’s businesses.

But the emergence of the Web as a platform for Internet and intranetApplications may make a Web browser the most important user interface

in the future (Internet Explorer, Nertscape are dominant browser interfaces).




Remote Batch Batch and on-line represent extremes on the

Processing spectrum. A combination solution also exists- the remote batch In remote batch processing, data is entered using

on-line editing techniques, however, the data is

collected into a batch instead of being immediately

processed. Later, the batch is processed.




Different Systems

APSI 11 INPUT DESIGN AND PROTOTYPING.PPT

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