Journal of Quality Engineering and Management

How to choice the effective conceptual design on basis of functional and non-functional requirement in conceptual design stage for a submarine of class H

Document Type : Original Article

Authors

Mehdi Karbasian 1
Umm Al-Banin Yousefi 2
Neda Haj Heydari 3

1 , Associate Professor, Malek Ashtar University of Technology, Faculty of Industrial Engineering, Shahinshahr

2 Assistant Professor, Malek Ashtar University of Technology, Faculty of Industrial Engineering, Shahinshahr

3 Master of Industrial Engineering, Malek Ashtar University of Technology, Faculty of Industrial Engineering

Abstract
Abstract: In today's competitive world, considering customers' needs and having a proper understanding of them, as the first phase of the conceptual design and development in the life cycle of a system, ensures the success of economic institutions and determines the purpose of the system. In this context, all needs must be considered and correctly interpreted in a continuous interaction with the customer. The correct interpretation of these requirements will result in the creation of two categories of requirements, designated as functional and non-functional requirements. Addressing both of these requirements and their values as well as an eventual assessment of the designs under construction in agreement with these values in the early stages of the life cycle of a system will bring about a reduction in costs and create a customer- oriented system. The purpose of the present study that conducted on a submarine of class H, is to choice the effective conceptual design for design and construction the product using the calculation of the overall measure of effectiveness index and based on the requirements specified in the conceptual design stage. During this research, first, all needs were identified; being interpreted, they were classified into two categories of functional and non-functional requirements. Then, the quantitative values of functional requirements were calculated using experts’ judgments and the quantitative values of nonfunctional requirements were worked out using various methods on the basis of the processes, so, the paired comparison matrix was used to determine the weights of each of the requirements and the effectiveness measure of the proposed designs was determined on the basis of weight and quantitative values of each category of requirements for each the conceptual design. Finally, from the two conceptual designs considered, an effective conceptual design is introduced and introduced to the industry. 

Keywords

Life cycle
Functional requirement
Non- functional requirement
Effectiveness
submarine of 
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Journal of Quality Engineering and Management
Volume 8, Issue 3
Autumn 2018
Pages 169-181

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