| Betreff: | [AISWorld] Requirements Engineering Journal Vol. 17, No.4 |
|---|---|
| Datum: | Tue, 13 Nov 2012 15:57:22 +0200 |
| Von: | Pericles Loucopoulos <P.Loucopoulos@lboro.ac.uk> |
| An: | <aisworld@lists.aisnet.org> |
REQUIREMENTS
ENGINEERING, Published by Springer
Volume 17,
Number 4 (2012), 255-330, DOI:
http://www.springerlink.com/content/ghh0l645j28n/
Journal Home Page: http://www.springer.com/computer/swe/journal/766
ORIGINAL
ARTICLE
“Quality requirements engineering for systems and software architecting: methods, approaches, and tools” By Rafael Capilla, Muhammad Ali Babar and Oscar Pastor
ABSTRACT
Requirements
engineering and software architecture are quite mature
software engineering
sub-disciplines, which often seem to be disconnected for many
reasons and it is
difficult to perceive the impact of functional and
non-functional requirements
on architecture and to establish appropriate trace links for
traceability
purposes. In other cases, the estimation of how non-functional
requirements, as
the quality properties a system should pose, is not perceived
useful enough to
produce high-quality software. Therefore, in this special
issue, we want to
highlight the importance and the role of quality requirements
for architecting
and building complex software systems that in many cases
require
multidisciplinary engineering techniques, which increases the
complexity of the
software development process.
ORIGINAL
ARTICLE
“Deriving software architectural models from requirements models for adaptive systems: the STREAM-A approach” By João Pimentel, Márcia Lucena, Jaelson Castro, Carla Silva and Emanuel Santos, et al.
ABSTRACT
Some
quality attributes are known to have an impact on the overall
architecture of a
system, so that they are required to be properly handled from
the early
beginning of the software development. For example,
adaptability is a key
concern for autonomic and adaptive systems, which brings to
them the capability
to alter their behavior in response to changes on their
surrounding
environments. In this paper, we propose a Strategy for
Transition between
Requirements and Architectural Models for Adaptive systems
(STREAM-A). In
particular, we use goal models based on the i*
(i-Star) framework to
support the design and evolution of systems that require
adaptability. To
obtain software architectures for such systems, the STREAM-A
approach uses
model transformations from i* models to architectural
models expressed
in Acme. Both the requirements and the architectural model are
refined to
accomplish the adaptability requirement.
ORIGINAL
ARTICLE
“Setting
quality targets for coming releases with QUPER: an industrial
case study” By Richard
Berntsson
Svensson,
Yuri Sprockel, Björn Regnell and Sjaak
Brinkkemper
ABSTRACT
Quality requirements play a critical role in driving architectural design and are an important issue in software development. Therefore, quality requirements need to be considered, specified, and quantified early during system analysis and not later in the development phase in an ad-hoc fashion. This paper presents the quality performance model that estimates quality targets in relation to market expectations as a basis for the architecting of quality requirements. The purpose of the model is to provide concepts for qualitative reasoning of quality levels in the decision-making of setting actual targets of quality requirements for coming releases of the product. The quality performance model is evaluated at one case company, using a market-driven development approach, in the electronic payment-processing domain. The results show that the model is useful for supporting early decision-making in, e.g., release planning of quality requirements.
ORIGINAL
ARTICLE
“An integrated strategy to
systematically understand and
manage quality in use for web applications” By Philip
Lew, Luis
Olsina, Pablo
Becker and Li
Zhang
ABSTRACT
The main goal in evaluating software quality is to ultimately improve its quality. In this work, we discuss SIQinU (Strategy for Improving Quality in Use), a six-phased evaluation-driven strategy for understanding and improving software quality requirements in a systematic way. Starting with quality in use (QinU), we design specific user tasks and context of use, and through identifying problems in QinU, we determine external quality (EQ) attributes that could be related to these QinU weakly performing indicators. Then, after deriving EQ attributes related to the QinU problems, we evaluate EQ and derive a benchmark to be used as a basis to make improvements. Once improvement recommendations are made based on poorly performing EQ indicators, a new version of the software application is completed and evaluated again for its EQ to establish a delta from the initial benchmark. Then, we re-evaluate QinU to determine the improvements resulting in QinU from the improvements made at the EQ level, thus leading to a cyclic strategy for improvement and development of relationships. SIQinU is a repeatable and consistent strategy which relies on: a conceptual framework (with ontological base), a process, and specific methods. In order to illustrate SIQinU, a real case study is conducted.