For capturing and storing the knowledge of human experts is done by expert system information system. After this, the operations like decision making and human reasoning are performed.
An expert system capture the human knowledge as a set of rules in a software which is used by other users in decision making situations when hiring the experts become expensive.
A system which examines the prescription record of patient and warns about dangerous interaction falls in category of expert systems.
Therefore, the appropriate word to fill ion the blank is expert.
In direct conversion the old system has to be deactivated completely and the new system has to be activated. It is advisable to do the direct conversion in the free hours to minimize the disturbance into the business processing.
If the new system does not work as per the requirements, then the new system is deactivated and old system is activated. Also the new entered transactions are re-entered in old system.
As it is said to admitting clerk that he/she has to use old information system, it means that there are some problems in the new information system. This means that the new information will undergo further testing or development.
Therefore, the appropriate word to fill in the blank is direct.
Difference between strategic, tactical, operational planning
Difference between strategic, tactical, operational planning is as shown:
Use of computer system for planning:
Information system helps in providing some or all the data which is needed for strategic planning, tactical planning and the operational planning.
Information system helps people in performing their job effectively and quickly by routine tasks for example taking customer order, reordering inventory and sending renewal notice. Information system helps people in making their decisions for any problem