The emergence of requirements networks: the case for requirements inter-dependencies

Kulshreshtha, Vishwajeet; Boardman, John; Verma, Dinesh

doi:10.1504/ijcat.2012.050130

Cited by 11 publications

(9 citation statements)

References 20 publications

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“…(Carlshamere et al 2001) address the importance of managing requirement dependencies as an enabler to establish effective prioritization techniques. (Kulshreshtha, Boardman, and Verma 2012) identify the same problematic when analyzing prioritization based on pair-wise comparisons as proposed by (Karlsson 1996), (Mead 2006), and (Berander and Andrews 2005).…”

Section: Introductionmentioning

confidence: 80%

“… Temporal: requirements are temporally related. (Kulshreshtha, Boardman, and Verma 2012) synthesize their findings in literature by enclosing all proposed dependence relations in 7 types:…”

Section: Literature Reviewmentioning

confidence: 99%

“…The issue of interdependencies between requirements has been a topic of interest in recent years in industry as well as academia. (Kulshreshtha, Boardman, and Verma 2012) provide a comprehensive literature review on the different propositions for defining dependencies among requirements, which is summarized hereafter. (Carlshamere et al 2001) in a research using industrial data, define the following six categories of requirement dependence, although they recognize that not all relationships they found could be categorized with it:  AND: indicates a bidirectional dependency in which one or more requirements need the other ones to be fulfilled.…”

Section: Literature Reviewmentioning

confidence: 99%

“…However, (Kulshreshtha, Boardman, and Verma 2012) identify a need to provide a classification or mechanism that is able to determine and represent dependencies among different levels of the requirement partitioning. In particular the authors come up with five categories:…”

Section: Literature Reviewmentioning

confidence: 99%

See 3 more Smart Citations

11.4.2 Assessing the Impacts of Uncertainty Propagation to System Requirements by Evaluating Requirement Connectivity

Salado

Nilchiani

2013

INCOSE International Symp

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Abstract. Although theoretically independent, requirements within a decomposition level of a system architecture are not isolated elements. For an existing design, a change of a requirement may endanger or facilitate fulfillment of other requirements within the same level of the decomposition. The present research suggests a requirement connectivity metric to evaluate the potential consequences that changing a requirement may have on a system with respect to fulfillment of other requirements. A particular aspect of the present research is the assumption that connectivity accounts only for requirements within the same decomposition level of an architecture, not for those flowing up or down the decomposition. The metric is used to evaluate different cases in which requirements are changed due to triggering of uncertain events during a project life-cycle.

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Section: Introductionmentioning

confidence: 80%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

Section: Literature Reviewmentioning

confidence: 99%

See 2 more Smart Citations

11.4.2 Assessing the Impacts of Uncertainty Propagation to System Requirements by Evaluating Requirement Connectivity

Salado

Nilchiani

2013

INCOSE International Symp

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“…Kulshreshtha et al . studied literature about dependencies between system requirements and abstracted this into four dependency types: contractual, continuance, compliance, cooperation, and consequential. They modeled one such network from a set of 50 requirements pertaining to a Hotel Front Office Reservation system.…”

Section: Introductionmentioning

confidence: 99%

Horizontal traceability for just-in-time requirements: the case for open source feature requests

Heck

Zaidman

2014

J. Softw. Evol. and Proc.

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SUMMARYAgile projects typically employ just-in-time requirements engineering and record their requirements (socalled feature requests) in an issue tracker. In open source projects we observed large networks of feature requests that are linked to each other. Both when trying to understand the current state of the system and to understand how a new feature request should be implemented, it is important to know and understand all these (tightly) related feature requests. However, we still lack tool support to visualize and navigate these networks of feature requests. A first step in this direction is to see whether we can identify additional links that are not made explicit in the feature requests, by measuring the text-based similarity with a Vector Space Model (VSM) using Term Frequency -Inverse Document Frequency (TF-IDF) as a weighting factor. We show that a high text-based similarity score is a good indication for related feature requests. This means that with a TF-IDF VSM we can establish horizontal traceability links, thereby providing new insights for users or developers exploring the feature request space.

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Steam explosion of windmill palm fiber as the filler to improve the acoustic property of rigid polyurethane foams

Zhang

et al. 2020

Polymer Composites

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Rigid polyurethane foam is a common sound absorption material in the construction owing to its structure that can effectively absorb sound waves by air friction and structural vibration. Windmill palm fibers pretreated with acid, alkali, or steam explosion were employed with polyurethane foam to improve foam acoustic performance in this study. The open porosity of the composite foam is closely related to the different treatments of windmill palm fiber and the content of windmill palm fiber in the composite. Steam explosion treatment removes silicon and wax layers on the surface of the windmill palm fiber, and the increased surface area after steam explosion provides a number of possible coupling reaction sites between the fiber and matrix. The model calculation shows that high airflow resistivity leads to high acoustic property, which is approach with the experimental results. The peak value of acoustic property indicated that the optimal content of windmill palm fiber in the rigid polyurethane foams is 1 wt%.

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The emergence of requirements networks: the case for requirements inter-dependencies

Cited by 11 publications

References 20 publications

11.4.2 Assessing the Impacts of Uncertainty Propagation to System Requirements by Evaluating Requirement Connectivity

11.4.2 Assessing the Impacts of Uncertainty Propagation to System Requirements by Evaluating Requirement Connectivity

Horizontal traceability for just-in-time requirements: the case for open source feature requests

Steam explosion of windmill palm fiber as the filler to improve the acoustic property of rigid polyurethane foams

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