Enhancement of Non Functional Requirements in Agile Software Development (original) (raw)
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A Survey to Support NFRs in Agile Software Development Process
2015
Software testing is the process of verification and validating the product. This process detects the difference between actual output and expected output. Agile software development methods promote adaptive planning, system development, timely delivery and scalability. There is various agile software development methods are available such as scrum, XP, Feature Driven Development (FDD) etc, used to deliver quality functional requirements (FR). In software development process software engineers are mainly concentrating only on functional requirements under the pressure of deploying the software as early as possible. But NFR is also important element of the development process. NFR is responsible for success and failure of the system. In this paper we have presented survey on need of generation of non functional requirements such as security, performance etc. NFR describes not actually what system will do but how the system will do it. Keywords— Agile software process, FR, NFR, Require...
Modeling of Nonfunctional Requirements for Agile Development Processes
Agile method means deliver quickly, modify quickly and change frequently. Main purpose of designing agile software development process is to solve the difficulty of delivering high quality software on time and in under continuously changing requirements as per business need. Now days various agile software development process (Scrum, Extreme Programming (XP), Feature Driven Development (FDD) etc.), used to deliver quality functional requirements (FR). In software development process engineers are mainly focused only on functional requirements under the stress of deploying the software within a time. But Non Functional Requirement (NFR) is also important element of the development process. To develop quality software NFRs are equally responsible as FRs. NFR plays very sensitive role to deliver quality software products. Most requirement modeling methods are mainly concentrated on FRs where as NFRs received less attention. Discovering NFR is not easy job. There is no proper NFR elicitation method is available. In this paper we design a tool which is used to generate NFRs such as security, performance, scalability etc. This tool helps to the project manager and scrum team in risk evaluations, planning and visualization of the proposed plan.
Non-Functional Requirements Elicitation Guideline for Agile Methods
—One of the essential activities in software development is elicitation of requirement. Majority of the studies has pointed out that less attention is given to the Non-Functional Requirement (NFR). The negligence of NFR elicitation is due to lack of knowledge of the user and developer about NFR. Our study presents elicitation guidelines for NFRs in agile methods. This guideline will helps developers as well as users in agile methods. A case study is conducted on the group of master students for eliciting NFR with the help of elicitation guidelines. In addition, the initial results were obtained by extracting NFRs from eProcurement document that carries requirements of major European Union projects. The result of the case study is positive and encouraging for the new developers and users having less awareness about NFRs. Furthermore, the study describes the role of cloud computing in agile methods, especially in elicitation activity.
2021
Non-Functional Requirements (NFRs) are very important since they play a significant role for the system’s behavior. Unfortunately, in Agile methods, the NFRs are overlooked until the later steps of software development. The negligence of NFRs elicitation is happened due to lack of standardized guidelines that can be referred by the software practitioners. Moreover, empirical studies on the current practices of NFRs elicitation in Agile software development organizations, specifically focused on security requirements and knowledge required are still limited. To the best of our knowledge, the study also has never been done before in Jordan context. Therefore, this study was conducted to address the abovementioned lacking issues. The study was conducted using quantitative approach. The questionnaire was distributed through online and faceto-face communication. The data was analyzed using descriptive statistical analysis. Hence, this paper presents the results from the pilot study that ...
NON-FUNCTIONAL REQUIREMENTS AS CONSTRAINTS AND THEIR VALUES IN SOFTWARE DEVELOPMENT: A REVIEW
Journal of Software Engineering & Intelligent Systems, 2020
Non-functional values specify the system's operational capabilities and constraints to enhance its functionality. The non-functional requirements (NFRs) may include security, reliability, performance etc. We may say that constraint is a line with quality expectations. NFR is always a constraint to other user stories. In some scenarios, NFRs are intangible that require human judgement. Agile Software Development (ASD) model is very popular worldwide for developing software. NFRs are not considered essential in ASD. In this paper, we discuss how non-functional values work as constraint and add value to NFR in agile methodology. NFRs ensure the reliability, usability and performance of the software system. NFRs are vital for the success in case of ASD. If they are not clearly addressed undesirable results may occur such as developer cannot satisfy the user and many other issues may arise in development. There are two types of constraints internal quality constraints and external quality. NFRs are also considered as backlog constraints.
Non-functional Requirements Elicitation in Agile Base Models
Webology, 2022
The elicitation of non-functional and functional needs is one of the most critical jobs of a requirement engineer. This scenario involves the imposition of limits on non-functional needs, whereas functional requirements call for the operation of a system in order to carry out functionality. Over the last few years, agile software development approaches have gained widespread acceptance in the software industry as a problem-solving paradigm. Non-functional requirements (NFRs) are frequently cited as a point of contention in non-functional requirements (NFR) approaches. As well as functional requirements like speed and efficiency, security is desired, amongst a host of other things. Aspects like usability, security, and privacy must all be taken into account. Functional needs must be treated as though they were first-class under the current industry standard of practice. Functional requirements are distinguished from non-functional requirements by the fact that only implemented requir...