A person is responsible for selecting an electronic CAE package to do schematic capture, printed circuit board design, and design simulation. The preliminary selection comes up with the high performance packages Newton Graphics (NEWT), cadence (CAD), and Racal Redact (RAC). The objective that effect the final decision are 

(i) initial cost of the packages,
(ii) maintenance costs, 

(iii) hardware and operating system support, and 

(iv) speed of processing a milestone model. Based on the prior experience on maintenance costs and performance, the objectives are ranked as follows:

The preferences assigned to each objectives are- b1 = 0.9,b2 = 0.7,b3=0.5,b4 = 0.5.
Determine the CAE package that is suitable for the project.

1.b Evaluate three different approaches to controlling conditions of an aluminum smelting cell (with respect to voltage across the cell and alumina concentration in the path). The control approaches 

area1= AGT: aggressive control tuning (very reactive)
a2 = MOD: moderate control tuning (mildly reactive)
a3 = MAN: essentially manual operation (very little computer control)
There are several objectives to consider:
: minimum power consumption
: overall operating stability
: minimum environmental impact
The control approaches are related as follows:

The preferences are given by- b1 = 0.8, b2 = 0.5, b3 = 0.6
What is the best choice of the control?