Mr. Lee Zledin is a system analyst of Advanced IT Service Firm. The firm has successfully engaged a local consumer electronics retailer, MElecQ, which sells a range of products including kitchen and home appliances, digital gadgets etc in their physical outlets. MElecQ would to have a Webstore system for online consumer electronics selling as part of the initiative to expand the business. Mr. Lee Zledin has been assigned the tasks by the firm to lead a project team consists of system designers and web programmers to develop the system based on traditional system development life cycle methodology.

Assume project team would like to design a place order function based on usability success factor, consistency,organization,clarity,format and flexibility briefly discuss the user and task characteristics that should be considered when designing the web interface of this function (6%)

\begin{tabular}{|l|l|} \hline Usability Factor & Guidelines for Achievement of Usability \\ \hline Consistency & Consistent use of terminology, abbreviations, formatting, titles, and navigation within and across outputs. Consistent response time each time a function is performed. \\ \hline Organization & Formatting should be designed with an understanding of the task being performed and the intended user. Text and data should be aligned and sorted for efficient navigation and entry. Entry of data should be avoided where possible (e.g., computing rather than entering totals). \\ \hline Clarity & Outputs should be self-explanatory and not require users to remember information from prior outputs in order to complete tasks. Labels should be extensively used, and all scales and units of measure should be clearly indicated. \\ \hline Format & Information format should be consistent between entry and display. Format should distinguish each piece of data and highlight, not bury, important data. Special symbols, such as decimal places, dollar signs, and signs, should be used as appropriate. \\ \hline Flexibility & Information should be viewed and retrieved in a manner most convenient to the user. For example, users should be given options for the sequence in which to enter or view data and for use of shortcut keystrokes, and the system should remember where the user stopped during the last use of the system. \\ \hline \end{tabular}