A WMS module will be selected for a big supermarket. The alternative WMS module

packages and their evaluations with respect to each criterion are as follows:

E: Excellent; A: Average; W: Weak

Modularity Functionality References Cost

Importance weight $20\%30\%15\%35\%$

WMS Module $1$ W $(1)$ E $(3)$ A $(2)70$

WMS Module $2$ A $(2)$ A $(2)$ W $(1)90$

WMS Module $3$ E $(3)$ A $(2)$ E $(3)80$

WMS Module $4$ A $(2)$ E $(3)$ A $(2)100$

WMS Module $5$ E $(3)$ W $(1)$ E $(3)150$

Use the following techniques for obtaining the solution:

a$.$ Lexicographic

b$.$ Maximax method

c$.$ Maximin method

d$.$ Median ranking method