Abstract
The weapon selection problem is a strategic issue and has a significant impact on the efficiency of defense systems. Selecting a weapon among many alternatives is a multiple criteria decision making (MCDM) problem. MCDM is made of stepwise procedures useful for complex problems allowing to rank the overall performances of a finite set of alternatives in respect to certain criteria of interest. They help the Decision Maker (DM) to identify the (best) feasible solution which is defined as the one which more closely matches all the relevant goals. In this paper,seven discrete MCDM methods are used to solve the mine detector selection problem to be used in the Egyptian Armed Forces. Spearman's rank correlation test is used to determinethe degree to which the methods are related.