Answer to Question 1
TRUE
Explanation: An employee's skills are considered multivalued because the employee likely has a number of skills (i.e., hard worker, SQL expert).
CL
Answer to Question 2
A Gantt chart is a graphical representation of a project that shows each task activity as a horizontal bar whose length is proportional to its time for completion. A Network diagram is a graphical depiction of project task activities and their interrelationships. The distinguishing feature of a Network diagram is that the ordering of activities is shown by connecting an activity with its predecessor and successor activities. Gantt and Network diagrams have features that enable them to more easily demonstrate certain aspects of a project more so than the other. Gantt shows the duration of activities; a Network diagram shows the sequence dependencies between activities. Gantt shows the time overlap of activities; a Network diagram does not show time overlap but does show what activities could be done in parallel. Some forms of Gantt charts can show slack time available within an earliest start and latest finish duration; a Network diagram shows this by data within activity rectangles.
