Software architecture evaluation plays an important role in the validation of quality models of software systems. This paper is based on the research carried out where the Architecture Trade-off Analysis Method (ATAM) was used. ATAM was chosen and used because it provides insight into the way quality attributes are mapped onto architecture and also shows the trade-offs existing between the iden...

Audit firms face a constant conflict between the business of auditing and the profession of auditing, characterised in the literature as a cost-quality conflict. This conflict is manifested at trainee levels in the pressure to perform quality work within specified time limits. Prior studies have reported high levels of quality threatening behaviour (QTB) at trainee levels and the importance of ...

The use of performance analysis and prediction techniques by software designers and software engineers is at best inconsistent and at worst simply does not happen. This is principally because these techniques are seen as separate and diicult to apply. Work on Software Performance Engineering, initiated by Smith, has sought to bridge the gap, but has had limited success. With the emergence of a ...

The performance of computer systems depends, among other things, on the workload. Performance evaluations are therefore often done using logs of workloads on current productions systems, under the assumption that such real workloads are representative and reliable; likewise, workload modeling is typically based on real workloads. However, real workloads may also contain anomalies that make them...

quantitative and model-based prediction of security in the architecture design stage facilitates early detection of design faults hence reducing modification costs in subsequent stages of software life cycle. however, an important question arises with respect to the accuracy of input parameters. in practice, security parameters can rarely be estimated accurately due to the lack of sufficient kn...

IMUTUS (Interactive Music Tuition System) is a EU project that aims to develop a practising environment for the recorder, combining new technologies and new approaches for music learning. Automatic analysis and evaluation of student performances play a central role in the student-system interaction. The performance evaluation module identifies typical performance errors, and provides feedback t...

The software architecture has been identified as an important part of a software system. Further, the software architecture impacts the quality attributes of a system, e.g., performance and maintainability. Therefore, methods for evaluating the quality attributes of software architectures are important. In this paper, we present a survey of software architecture evaluation methods. We focus on ...

Software performance evaluation relies on the ability of simple models to predict the performance of complex systems. Often, however, the models are not capturing potentially relevant effects in system behavior, such as sharing of memory caches or sharing of cores by hardware threads. The goal of this paper is to investigate whether and to what degree a simple linear adjustment of service deman...

Particulate matter (PM) models are used for demonstration of progress in visibility under the Regional Haze Rule and the formulation of State Implementation Plans (SIPs) for the PM2.5 National Ambient Air Quality Standards (NAAQS). For models to be used convincingly in the regulatory arena, they must first be shown to produce satisfactory performance . The evaluation of models is a data-intensi...

Several prototypes for predicting the short-term market reaction to news based on text mining techniques have been developed. However, no detailed comparison of the systems and their performances is available thus far. This paper describes the main systems developed and presents a framework for comparing the approaches. The prototypes differ in the text mining methods applied and the data sets ...