Many commercially available screen readers are very effective and go a long way toward achieving these goals. However, there some areas that warrant further investigation and discussion. The provision of additional information that allows a user to easily obtain formatting and positional information. The concept of maximum information, minimum speech varies from user to user. Users have different levels of expertise in using the operating system and novices require greater amounts of information.
Users have different preferences for the amount and type of information spoken.
Users need to be supported by having actions confirmed in a sensible way and also need to be informed of changes on the screen in a way that is appropriate to their requirements. The interfaces to standard applications need to be configured so that it meets the goal of making the application appear as if it were a specialized application designed for blind users. There are a number of issues. Each of these areas is considered in more detail below with particular reference to the way the issues are addressed in the LookOUT screen reader. When a user moves the cursor around the screen, using the cursor keys, most screen readers speak information appropriate to the action.