3 - User Interface

Busi 335 copyright 2009 10 ym cheung william tan and

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Unformatted text preview: t before f values are correct before accepting them We will discuss the error trapping techniques will discuss the error trapping techniques in the next lecture when we talk about input control. BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 27 BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 28 Understandable Displays Understandable Displays • Clearly distinguish system’s messages distinguish system messages from outputs to the users • Be simple • Keep the user iinformed what part of the user nformed what part of the system he/she locates BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 29 BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo Forms and Reports and Reports 30 Purpose of Forms of Forms • Forms & Reports are important part of DB applications • Make it easy for users to perform their task (productivity) • All levels of an organization use Forms & Reports on a • Collect data data • Display analyses and computations daily basis • Switchboard for other Forms & Reports • Years ago Forms were only used for input • Today Forms also used as Reports i.e. e-Reports • Internet makes e-Reports viable & efficient (more on Internet later in the course) Internet later in the course). • The same design principles used for DB Forms also apply to Web Forms to Web Forms BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 31 BUSI 335 Copyright © 2009-10 Y.M. Cheung, William Tan, and Carson Woo 32 Purpose of Reports Purpose of Reports Designer Beware! Beware! • Used to be paper-only • Now for reading on screen (e.g. e-Bills from • All the user ever sees are Forms & Reports the user ever sees are Forms Reports • Tables never revealed to user and definitely NOT Shaw, Telus, etc) accessible (don forget you are Designer!) accessible (don’t forget you are Designer!) • Presentation is paramount, especially for complex data or lengthy Reports ...
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