i) Progress Indicator.

• It is a rectangular bar that fills as a process is being performed, indicating the percentage of the process that has been completed.

• The main purpose is to provide a feedback concerning the completion a lengthy operation.

• It is used to provide a indication the proportion of a process completed the filled in area indicates the percentage of a process that has been completed.

• A progress indicator sometimes called as progress bar is shown in fig:

Progress Indicator Guidelines.

When filling the indicator:

If it is horizontally arrayed, fill it from left to right and it is vertically arrayed, fill it from bottom to up.

Fill them with a color or shade of grey static text control and position the text outside of the control.

ii) Elapsed Time Message.

• An elapsed time message shows the amount of elapsed time the operation has consumed.

• Elapsed time is the time taken from start to compute program to the end.

• It is useful if the length of the operation is not known in advance.

• It is also used if a particular part of the operation will take an unusually low time to complete.

• It normally contains a progress bar along within different messages which represent progress completion, time elapsed in program as well as time remaining for progress to get completed.

iii) Hourglass Pointer.

• These are different symbols or indicators used for different time delays.

• If the operation takes 10 seconds or to complete, present a "busy" signal until the operation is finished.

• An hour glass pointer is the customary signal that can be used for the same.

• A "please wait" message can be presented to indicate that more complex processing is occurring or has been delayed.

• When the process is finished, provide an indication that the user may proceed.

• If an operation takes longer than 10 seconds to complete, display a rolling pole or other large animated object.

• Also if an operation takes over 1 minute to complete, display a progress indicator.