Research Question: How to specify the limits of quality requirements to devel low cost and yet a highly ecient software system ? Answer: To determine the limits of quality requirements, the method of Quality-Impact can be adopted. The inquiry cycle is a step process and is applied iterativel the sta!eholders are satis"ed from the quality attribute under investigati steps include: #. $reparation : The prototype of software is prepared and documentation %ertain sta!e holders will then be as!ed to answer a questionnaire based on the e&perience of a quality attributes of the prototype software. The attribute of the prototype will be further tailored based on these responses. '. (easurement : The measurement of the sta!e holders e&perience of the product is done with help of a pre de"ned ratings)scores provided by the user in response to a questionnaire which can be translated in to quality i attribute. *. Analysis : A statistical analysis of the sta!e holders e&perience impact collected in the previous step is done. The measured quality and the quality impact is correlated using a regression model. +sing the reverse regression mo quality value for a given quality impact is evaluated. . ecision ma!ing : -n this "nal step, the desired levels of quality for the att identi"ed using the analysis result. oftware requirement speci"cation are then modi"ed based on the decision . This process identi"es the ma&imum quality impact based on technical feasibility, product strategies and resource limitation .
Research Question:How to specify the limits of quality
requirements to develop a low cost and yet a highly efficient
software system ? Answer:To determine the limits of quality
requirements, the method of Quality-Impact Inquiry can be adopted.
The inquiry cycle is a 4 step process and is applied iteratively
until the stakeholders are satisfied from the quality attribute
under investigation. The 4 steps include:Preparation : The
prototype of software is prepared and documentation is done.
Certain stake holders will then be asked to answer a questionnaire
which would be based on the experience of a quality attributes of
the prototype software. The quality attribute of the prototype will
be further tailored based on these responses.Measurement : The
measurement of the stake holders experience of the software product
is done with help of a pre defined ratings/scores provided by the
user in response to a questionnaire which can be translated in to
quality impacts of an attribute. Analysis : A statistical analysis
of the stake holders experience about the quality impact collected
in the previous step is done. The measured quality and the quality
impact is correlated using a regression model. Using the reverse
regression model the quality value for a given quality impact is
evaluated. Decision making : In this final step, the desired levels
of quality for the attributes are identified using the analysis
result. Software requirement specification are then modified based
on the decision . This process identifies the maximum applicable
quality impact based on technical feasibility, product strategies
and resource limitation .
