48 THE DEVELOPMENT OF WEAPONS SYSTEM REQUIREMENTS 



2-2 FORMULATING THE SYSTEM STUDY PLAN 



Reduced to its barest essentials, any system may be visualized as the 

 logical process of asking and answering the sequence of four questions out- 

 lined in Fig. 2-1. This basic pattern is repeated — again and again — 

 throughout the course of the study. 



Operational 



Requirements 



(O.R.) 



Carrier 



Task Force 



Weapon System 



Model 



Fixed 

 Elements 



Variable 

 Elements 



Interceptor 



tJJ 



Subsystem Analysis 



Generated Capabilities 



and 

 System Deficiencies 



Mission 

 Accomplishments 



Step 1 

 System 

 Analysis 



Target 

 Complex 



Complete Accomplishment of O.R. 



VARIABLE ELEMENTS 



Target 

 Characteristics 



Radar Req'ts 

 Step 2 



Al Radar and 

 Fine Control 

 Req'ts - Step 3 



■ Early Warning Detection 

 Range from Fleet Center 



Interceptor Kill 

 Probability 



No. of Interceptors 

 Engaging Raid 



Fig. 2-2 Master Plan for Weapons System Analysis 



First, the problem is defined. For the hypothetical carrier task force air 

 defense system, this problem definition takes the form of the following 

 question : 



