Many decision makers have a tendency to seek more information than required to make a good decision.
When too much information is sought and obtained, one or more of several problems can arise:
A delay in the decision occurs because of the time required to obtain and process the extra information. This delay can impair the effectiveness of the decision or solution
Information overload can occur. In this state, so much information is available that decision-making ability actually declines because the information in its entirety can no longer be managed or assessed appropriately. A major problem caused by information overload is forgetfulness. When too much information is taken into memory, especially in a short period of time, some of the information (often that received early on) will be pushed out
Selective use of the information can result. That is, the decision maker will choose from among all the information available only those facts which support a preconceived solution or position
Mental fatigue can result slowing and reducing the quality of decisions further.
The quantity of information that can be processed by the human mind is limited. GD enables users to make robust decisions without the need for excess information, while effectively managing the use of information that is available to make the best decision possible.
