scholarly journals Exploring the impact of software requirements on system-wide goals: a method using satisfaction arguments and i* goal modelling

2011 ◽  
Vol 17 (3) ◽  
pp. 227-254 ◽  
Author(s):  
James Lockerbie ◽  
Neil Arthur McDougall Maiden ◽  
Jorgen Engmann ◽  
Debbie Randall ◽  
Sean Jones ◽  
...  
Keyword(s):  
Software Requirements ◽  
Goal Modelling ◽  
The Impact

scholarly journals A Multistep Approach for Managing the Risks of Software Requirements Volatility

2016 ◽  
Vol 9 (1) ◽  
pp. 101
Author(s):  
Nedhal A. Al-Saiyd
Keyword(s):  
Software Requirements ◽  
Software Project ◽  
Font Size ◽  
Software Usability ◽  
Proposed Model ◽  
Requirements Volatility ◽  
And Control ◽  
Requirement Changes ◽  
The Impact

<p><span style="font-size: 10.5pt; font-family: 'Times New Roman','serif'; mso-bidi-font-size: 12.0pt; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA;" lang="EN-US">Software is changed continuously in order to respond to different users and business needs. Requirements are changed dynamically to improve software usability and increase its value, but requirement volatility sometimes cause failures for many projects because of inadequate understanding of the changing causes and the consequences of these changes. This research highlights the importance of managing requirement changes, classify them, and control the impact risks of requirement volatility on software project. The proposed model is designed based on software requirements risks factors and how to reduce their impacts. Generally, requirements changing is considered as a difficult, costly and time-consumed task, and consequently it is too important to study the inter-relationships between the changes and their impacts on the other phases of software system. The good understanding of the changing causes and their consequences can improve and support requirements management process and also lead successfully to the predicted goals of changes. The high quality of the requirements influences the success of a software project during software development and maintenance processes.</span></p>

scholarly journals A Risk-Based Approach for Selecting Software Requirements

2017 ◽  
Author(s):  
Aruan Amaral ◽  
Gledson Elias
Keyword(s):  
Development Process ◽  
Selection Process ◽  
Software Requirements ◽  
Incremental Development ◽  
Optimal Subset ◽  
Trade Offs ◽  
Satisfaction Evaluation ◽  
The Cost ◽  
Balance Trade ◽  
The Impact

In incremental development approaches, there is a great interest in delivering system releases on-time and on-budget, raising the satisfaction level of the stakeholders involved in the development process. Thus, the software requirements selection process has a key role in identifying a good-enough or even an optimal subset of candidate requirements, which can balance trade-offs among critical aspects, such as project budget, requirements costs, customers’ preferences and their importance. Despite relevant contributions, current proposals do not address software risks involved in the development process, which represents another key aspect that can deeply impact on project cost and stakeholders’ satisfaction. In such a direction, this paper proposes a risk-based approach for selecting software requirements, in which a risk analysis is incorporated for estimating the impact of risks in the cost of the next release requirements and stakeholders’ satisfaction. Evaluation results based on a pilot use case reveal the potential practical applicability of the proposed approach.

Formation of Lunar Craters and Bright Rays as a Result of Meteorite Impacts

1962 ◽  
Vol 14 ◽  
pp. 415-418
Author(s):  
K. P. Stanyukovich ◽  
V. A. Bronshten
Keyword(s):  
Explosive Charge ◽  
The Moon ◽  
Meteorite Impacts ◽  
The Earth ◽  
Lunar Craters ◽  
The Impact

The phenomena accompanying the impact of large meteorites on the surface of the Moon or of the Earth can be examined on the basis of the theory of explosive phenomena if we assume that, instead of an exploding meteorite moving inside the rock, we have an explosive charge (equivalent in energy), situated at a certain distance under the surface.

The Geosciences Applied to Lunar Exploration

1962 ◽  
Vol 14 ◽  
pp. 169-257 ◽  
Author(s):  
J. Green
Keyword(s):  
Lunar Surface ◽  
Probable Mechanism ◽  
Point Of View ◽  
Lunar Exploration ◽  
Geological Model ◽  
Apply Geophysics ◽  
Surface Features ◽  
The Impact

The term geo-sciences has been used here to include the disciplines geology, geophysics and geochemistry. However, in order to apply geophysics and geochemistry effectively one must begin with a geological model. Therefore, the science of geology should be used as the basis for lunar exploration. From an astronomical point of view, a lunar terrain heavily impacted with meteors appears the more reasonable; although from a geological standpoint, volcanism seems the more probable mechanism. A surface liberally marked with volcanic features has been advocated by such geologists as Bülow, Dana, Suess, von Wolff, Shaler, Spurr, and Kuno. In this paper, both the impact and volcanic hypotheses are considered in the application of the geo-sciences to manned lunar exploration. However, more emphasis is placed on the volcanic, or more correctly the defluidization, hypothesis to account for lunar surface features.

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