Title
Easy Approach to Requirements Syntax (EARS)
Abstract
The development of complex systems frequently in-valves extensive work to elicit, document and review stakeholder requirements. Stakeholder requirements are usually written in unconstrained natural language, which is inherently imprecise. During system development, problems in stakeholder requirements inevitably propagate to lower levels. This creates unnecessary volatility and risk, which impact programme schedule and cost. Some experts advocate the use of other notations to in-crease precision and minimise problems such as ambiguity. However, use of non-textual notations requires translation of the source requirements, which can introduce further errors. There is also a training overhead associated with the introduction of new notations. A small set of structural rules was developed to address eight common requirement problems including ambiguity, complexity and vagueness. The ruleset allows all natural language requirements to be expressed in one of five simple tem-plates. The ruleset was applied whilst extracting aero engine control system requirements from an airworthiness regulation document. The results of this case study show qualitative and quantitative improvements compared with a conventional textual requirements specification.
Year
DOI
Venue
2009
10.1109/RE.2009.9
Atlanta, GA
Keywords
Field
DocType
aerospace engines,aircraft,computational linguistics,formal specification,learning (artificial intelligence),natural languages,aero engine control system,airworthiness regulation document,complex system development,nontextual notation,requirement elicitation,requirements syntax,structural ruleset,unconstrained natural language,Requirements,Syntax,Template
Software engineering,Computer science,Requirements analysis,Formal specification,Requirements management,Requirements elicitation,Natural language,Software requirements specification,System requirements specification,Ambiguity
Conference
ISSN
ISBN
Citations 
1090-705X
978-0-7695-3761-0
68
PageRank 
References 
Authors
5.48
2
4
Name
Order
Citations
PageRank
Alistair Mavin116516.47
Philip Wilkinson21099.20
Adrian Harwood3685.48
Mark Novak411012.35