Requirements elicitation in goal oriented requirements engineering
Abstract
The purpose of the study is to identify shortcomings of requirements elicitation when implementing
goal oriented requirements engineering (GORE) methods. Ultimately a framework will be created
to address the shortcomings identified. The objective of the framework is to provide guidelines for
the implementation of the requirements elicitation phase when a GORE method is used.
The ever-changing environment of information technology results in changes in requirements
throughout the development life cycle. The need to adapt to these changes produced agile
systems development methodologies. As a result of these more adaptive systems development
methods, goal oriented requirements engineering (GORE), was introduced. This technique relies
on goals being established and requirements extracted from these goals. Requirements elicitation
is a phase of the Requirements Engineering (RE) process and encompasses activities to do with
obtaining the requirements of the new system from various sources. In order to identify specific
shortcomings in terms of requirements elicitation in GORE, current frameworks/methods need to
be evaluated and studied. The study will help to create a new framework based on current best
practices. This framework will help to provide solutions for the limitations, which are needed
because most of the current models focus on different aspects of GORE and not on the elicitation
phase.
The positivist research paradigm indicated the use of questionnaires as the main method of data
collection. Statistical data analysis provided results that gave descriptive information about the
implementation of GORE methods and showed how their use compared with that of traditional
RE. From these results, the main components were identified. They include elicitation techniques,
communication, changes in requirements, and the interaction with the other phases within GORE.
Each of these components indicated a strong relationship with the requirements elicitation phase.
The framework, based on these components, provides guidelines for the requirements elicitation
phase and indicates possibilities for future research into this subject.
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