tailieunhanh - Lecture Systems analysis and design methods (7/e): Chapter 16 – Whitten, Bentley

In this chapter you will learn how to design computer inputs. It is the second of three chapters that address the design of online systems using a graphical user interface for either client/server or Web-based systems. | Chapter 16 Input Design and Prototyping Chapter 16 – Input Design and Prototyping Objectives Define the appropriate format and media for a computer input. Explain the difference between data capture, data entry, and data input. Identify and describe several automatic data collection technologies. Apply human factors to the design of computer inputs. Design internal controls for computer inputs. Select proper screen-based controls for input attributes that are to appear on a GUI input screen. Design a web-based input interface. 16- Chapter 16 – Input Design and Prototyping 16- Chapter 16 – Input Design and Prototyping Data Capture and Data Entry Data capture – the identification and acquisition of new data (at its source). Source documents – forms used to record business transactions in terms of data that describe those transactions. Data entry – the process of translating the source data or document (above) into a computer readable format. 16- Chapter 16 – Input Design | Chapter 16 Input Design and Prototyping Chapter 16 – Input Design and Prototyping Objectives Define the appropriate format and media for a computer input. Explain the difference between data capture, data entry, and data input. Identify and describe several automatic data collection technologies. Apply human factors to the design of computer inputs. Design internal controls for computer inputs. Select proper screen-based controls for input attributes that are to appear on a GUI input screen. Design a web-based input interface. 16- Chapter 16 – Input Design and Prototyping 16- Chapter 16 – Input Design and Prototyping Data Capture and Data Entry Data capture – the identification and acquisition of new data (at its source). Source documents – forms used to record business transactions in terms of data that describe those transactions. Data entry – the process of translating the source data or document (above) into a computer readable format. 16- Chapter 16 – Input Design and Prototyping Data Processing Data processing is all processing that occurs on the data after it is input from a machine readable form. In batch processing, the entered data is collected into files called batches and processed as a complete batch. In on-line processing, the captured data is processed immediately In remote batch processing, data is entered and edited on-line, but collected into batches for subsequent processing. 16- Chapter 16 – Input Design and Prototyping Input Implementation Methods Keyboard Mouse Touch Screen Point-of-sale terminals Sound and speech Automatic data capture Optical mark recognition (OMR) Bar codes Optical character recognition (OCR) Magnetic Ink Electromagnetic transmission Smart cards Biometric 16- Chapter 16 – Input Design and Prototyping Taxonomy for Computer Inputs Process Method Data Capture Data Entry Data Processing Keyboard Data is usually captured on a business form that becomes the source document for input. Data can be collected .