Help Facilities  Error messageHaving problems in using an ICT
system is not unique to disabled and elderly people so a well
designed system will provide, at the right time, appropriate
relevant help in a form suitable for the user. However, it is
easier to specify than to implement, but this should not be used
as an excuse for ignoring the problems faced by users and
potential users.  Error messages and alerts  An error message is
a message displayed by a system when an unexpected condition
occurs, usually on a computer or other device. Error messages
are often displayed using dialogue boxes. These dialogue boxes
must be designed to remain on the screen so that they are
discovered by the user.  Presentation and appearance of error
messages  There are several design factors that will influence
how well a user comprehends and responds to an error message:
Visual attributes capture the user's attention  Error message
displayed in a dialogue boxThe visual attributes of an error
message, such as its colour, size,