To Develop the Interface of an Information System That Supports

To develop the interface of an information system that supports organizational activities,

A) all attention should be focused on breaking organizational tasks into tool level tasks;
B) all attention should be focused on choosing hardware and software for this system;
C) tool level tasks for completing organizational tasks need to be identified through task analysis; and then analyzed using TSSL model;
D) users of this system should be trained;
E) the location for installing necessary equipments should be cleaned first.