CS4753 Homework 1 ================= ***** Exercise on P33 ***** Supermarket User : Customer -- Faster and more efficient service; Easy to learn/use Might be less efficient: bar code reader is more complicated than printed tag price. Be able to see more info (eg. items' price, update total) Must have credit card/debit card, no cash/check (good/bad?) Frequency of Use. (familiar with price, knowing what to see) Experience level with operating electronic system Unfamiliar with the system, need clear documentation. Fear of new technology Lack of human interaction Less error Enjoyment and satisfaction. User : Sales Stuff and Checkout Attendent -- Motivation (boring job?) fatigue Experience level and comfort level Less anxiety, feeling less importance Probably less mistakes Training raises productivity and eases fear of tech Education enables catching errors in calculations Physical strength Coping strategies, interface with customer Better customer service Book keeping Efficiency Compensation for better performance How about coupons, food stamps, stolen credit cards? User : Shelf Filler -- Higher level of responsibility (make sure bar code tag is on every item) Victims of "tech power"? Feeling of less importance? User : Stock-keeper -- Motivation Probably less mistakes Better customer service Easier to change prices than using tags (sale prices) Comfort level Compensation for better performance Automatic reports on low-stock products Feel less importance User Interface -- Register counter Bar code reader (audio feedback for correct/incorrect reading) Keyboard with undo/remove keys Communication system to a central unit (digital/audio/visual) Scale (for fruits etc.) Digital display Cashless paying system (card-swipe interface, key pad for PIN#) Printer Adjustable platform Calculator on every trolley Assistants on showing new tech to people who can't understand Easy Instructions Bar code reader (audio feedback for correct/incorrect reading) Might be hand-held with a long cord for scanning heavy or big items Digital display (easy to read under the brightness conditions) undo/remove buttons Scale (optional) Hard to find bar codes Be highly intuitive Maybe: check to see if card has enough money Work Activity -- Automated (tracking, etc.) Repetitive More efficient Redefine the tasks performed by the shelf filler and checkout attendant Simplify the tasks performed by the sales staff and stock keeper Time to learn/adapt to new tech Integration of tasks Error rate will likely to drop Less time to perform a task Check-up on trolleys (make sure the calculator's working) Monitoring Talk with customer Organization -- Training Redefine tasks/responsibilities Collection of data Fewer stock employees needed, more tech employees needed Lawer - in case someone wish to enforce that cash is legal to use everywhere Bag boys Comfort -- Register counter Equipment layout for increased throughput Need more breaks (physical work load) Trolley must not restrict customer movement or storage ability in cart Productivity -- More accurate Faster transaction Computerized records for instant updates Customer moves faster (easier to check prices) -> push throughput attract more customers Link sales with maintenance Cashless system provides security Reliable "Shop-smart" ***** Exercise on P36 ***** Paper User Interface User : staff -- Notice les cluttering Motivation and enjoyment on easier tasks? More work transfering data from paper to computer? Error rate drop (avoid frustration/misinterpretation of user data) Little training needed Deal with damaged/mis-filled forms Handwriting recognition Less efficient? Faith in the computer system? User : customer -- Easy to understand and use (familarity) Must right clearly Language? Can correct mistakes Less danger of incorrect data, less fear of tech Less experience needed Less/longer response time? Faith in customer service User Interface -- Paper user interface (a form to fill in, graphics), Pen or, Light pen with sensitive screen Workstation process - handwriting recognition, scaning device Feedback from recognition Work Activity -- Feed paper to computer Save time/space? More/less efficient? Easy to use Less error Direct access to the interface (paper) Organization -- Instructions Different forms for different needs Restructure tasks/responsibilities Staff relation Less loss of info Cost analysis on the handwriting recognition system Training? Comfort -- Equipment layout Office layout Tedious for extremely large jobs Ergonomics Productivity -- Less workstation interface Less employee and customer frustration Faster? Save time Productivity traded for improved custormer satisfaction