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IEEE International Conference on Cloud computing, CLOUD

作者： Mohamed Almorsy John Grundy Amani S. Ibrahim Centre for Computing & Engineering Software Systems Swinburne University of Technology Melbourne Australia

ISBN: (纸本)9781467328920

Multi-tenancy helps service providers to save costs, improve resource utilization, and reduce service customization and maintenance time by sharing of resources and services. On the other hand, supporting multi-tenancy adds more complexity to the shared application's required capabilities. Security is a key requirement that must be addressed when engineering new SaaS applications or when re-engineering existing applications to support multi-tenancy. Traditional security (re)engineering approaches do not fit with the multi-tenancy application model where tenants and their security requirements emerge after the system was first developed. Enabling, runtime, adaptable and tenant-oriented application security customization on single service instance is a key challenging security goal in multi-tenant application engineering. In this paper we introduce TOSSMA, a Tenant-Oriented SaaS Security Management Architecture. TOSSMA allows service providers to enable their tenants in defining, customizing and enforcing their security requirements without having to go back to application developers for maintenance or security customizations. TOSSMA supports security management for both new and existing systems. Service providers are not required to write security integration code to use a specific security platform or mechanism. In this paper, we describe details of our approach and architecture, our prototype implementation of TOSSMA, give a usage example of securing a multi-tenant SaaS, and discuss our evaluation experiments of TOSSMA.

关键词： Authentication Runtime Authorization Service oriented architecture Databases Computer architecture

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Work integrated learning rationale and practices in Australian information and communications technology degrees 14

Work integrated learning rationale and practices in Australi...

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14th Australasian computing Education Conference, ACE 2012

作者： Pilgrim, Chris J. Koppi, Tony Centre for Computing and Engineering Software Systems Faculty of ICT Swinburne University of Technology PO Box 218 HawthornVIC3122 Australia Faculty of Informatics University of Wollongong Northfields Ave WollongongNSW2522 Australia

ISBN: (纸本)9781921770043

To obtain a better understanding of WIL rationale and practices in Australian ICT degrees, a survey of managers and educational leaders of ICT was undertaken. These survey results were analysed and informed by discussions at a forum of ICT educational leaders. Results indicate that WIL practices are broad with a wide range of internal (university) and external (industry) combinations to provide the student with appropriate professional experience. The majority of respondents indicated that their curricula are industry relevant, and that they offer an industry-linked final year project. Virtual or simulated work experiences also seem to be commonly practiced. The range of options is influenced by local context, staff approaches and resource availability. The majority of universities regard WIL as important and beneficial and apparently have practices that provide for industry contribution to the curriculum even though this may not be obvious to graduates in the workplace. Support provided to students for an industry placement is variable. Success measures of placements are that students have improved understanding of professional responsibility and have gained a variety of work perspectives. That the student is employable as a consequence is not seen as very important. There appears to be a tension between desired outcomes from academia and industry including those of "work readiness" and lifelong learning. It seems that the range of options provided by universities need to be recognised by all stakeholders as contributing to the development of an ICT Professional. © 2012, Australian Computer Society, Inc.

关键词： Students

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Towards user-centric concrete model transformation

Towards user-centric concrete model transformation

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IEEE Symposium on Visual Languages and Human Centric computing (VL/HCC)

作者： Iman Avazpour Centre for Computing and Engineering Software and Systems Swinburne University of Technology Hawthorn VIC Australia

Model transformations are the key part of Model Driven engineering (MDE). However, their specification is not user-friendly, due to excessive use of metamodels and textual representation of transformation languages. This paper briefly describes the approach and tool under development for user-centric transformation generation using concrete model visualisations.

关键词： Visualization Concrete Rendering (computer graphics) Syntactics Java Computational modeling Educational institutions

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CONVErT: A framework for complex model visualisation and transformation

CONVErT: A framework for complex model visualisation and tra...

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IEEE Symposium on Visual Languages and Human Centric computing (VL/HCC)

作者： Iman Avazpour John Grundy Faculty of ICT Centre for Computing and Engineering Software and Systems Swinburne University of Technology Hawthorn VIC Australia

Model Driven engineering (MDE) has become a commonly used approach in software engineering. It promotes using models as primary artefacts and proposes methods for transforming them to desired software products. However, the specification of models and their transformations in MDE with current techniques is not user-friendly, due to excessive use of high level abstract models and textual representation of transformation languages. This paper briefly describes CONVErT, an approach and tool developed for user-centric transformation generation using concrete model visualisations.

关键词： Visualization Unified modeling language Concrete Java Abstracts Syntactics Computational modeling

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SLuRp - A tool to help large complex systematic literature reviews deliver calid and rigorous results

SLuRp - A tool to help large complex systematic literature r...

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2nd International Workshop on Evidential Assessment of software Technologies, EAST 2012

作者： Bowes, David Hall, Tracy Beecham, Sarah Science and Technology Research Institute University of Hertfordshire Hatfield Herts United Kingdom Department of Information Systems and Computing Brunel University Uxbridge United Kingdom Lero - Irish Software Engineering Research Centre University of Limerick Limerick Ireland

ISBN: (纸本)9781450315098

Background: Systematic literature reviews are increasingly used in software engineering. Most systematic literature reviews require several hundred papers to be examined and assessed. This is not a trivial task and can be time consuming and error-prone. Aim: We present SLuRp - our open source web enabled database that supports the management of systematic literature reviews. Method: We describe the functionality of SLuRp and explain how it supports all phases in a systematic literature review. Results: We show how we used SLuRp in our SLR. We discuss how SLuRp enabled us to generate complex results in which we had confidence. Conclusions: SLuRp supports all phases of an SLR and enables reliable results to be generated. If we are to have confidence in the outcomes of SLRs it is essential that such automated systems are used. Copyright 2012 ACM.

关键词： Open source software

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Visualizing traceability links between source code and documentation

Visualizing traceability links between source code and docum...

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IEEE Symposium on Visual Languages and Human Centric computing (VL/HCC)

作者： Xiaofan Chen John Hosking John Grundy Department of Computer Science University of Auckland Auckland New Zealand College of Engineering & Computer Science Australian National University Canberra Australia Centre for Computing & Engineering Software Systems Swinburne University of Technology Melbourne Australia

It is well recognized that visualizing traceability links between software artifacts helps developers to recover, browse, and maintain these inter-relationships effectively and efficiently. However, it is a major challenge for researchers to efficiently visualize traceability links for big software systems because of scalability and visual clutter issues. In this paper we present a new approach that combines treemap and hierarchical tree visualization techniques to provide a global structure of traces and a detailed overview of each trace. These both reduce visual clutter while still being highly scalable and interactive. Our usability study shows that our approach can support comprehension, browsing, and maintenance of traceability links.

关键词： Visualization Color Clutter Data visualization software systems Layout

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Communications in Computer and Information Science: Preface

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Communications in Computer and Information Science 2012年 301 CCIS卷 V-VIII页

作者： Winkler, Dietmar O'Connor, Rory V. Messnarz, Richard Institute of Software Technology and Interactive Systems Vienna University of Technology Austria Lero The Irish Software Engineering Research Centre School of Computing Dublin City University Ireland ISCN GesmbH Graz Austria

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Improving automated documentation to code traceability by combining retrieval techniques 11

Improving automated documentation to code traceability by co...

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2011 26th IEEE/ACM International Conference on Automated software engineering, ASE 2011

作者： Chen, Xiaofan Grundy, John Department of Computer Science University of Auckland Auckland New Zealand Centre for Computing and Engineering Software Systems Swinburne University of Technology Melbourne VIC Australia

ISBN: (纸本)9781457716393

Documentation written in natural language and source code are two of the major artifacts of a software system. Tracking a variety of traceability links between software documentation and source code assists software developers in comprehension, efficient development, and effective management of a system. Automated traceability systems to date have been faced with a major open research challenge: how to extract these links with both high precision and high recall. In this paper we introduce an approach that combines three supporting techniques, Regular Expression, Key Phrases, and Clustering, with a Vector Space Model (VSM) to improve the performance of automated traceability between documents and source code. This combination approach takes advantage of strengths of the three techniques to ameliorate limitations of VSM. Four case studies have been used to evaluate our combined technique approach. Experimental results indicate that our approach improves the performance of VSM, increases the precision of retrieved links, and recovers more true links than VSM alone. © 2011 IEEE.

关键词： Vector spaces

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Using automated Control Charts for the Runtime Evaluation of QoS Attributes

Using automated Control Charts for the Runtime Evaluation of...

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13th IEEE International Symposium on High Assurance systems engineering, HASE 2011

作者： Amin, Ayman Colman, Alan Grunske, Lars Centre for Computing and Engineering Software Systems Faculty of Information and Communication Technologies Swinburne University of Technology Hawthorn VIC 3122 Australia Department of Computer Science Software Engineering: AG AQUA University of Kaiserslautern Kaiserslautern67653 Germany

ISBN: (纸本)9780769546155

As modern software systems operate in a highly dynamic context, they have to adapt their behaviour in response to changes in their operational environment or/and requirements. Triggering adaptation depends on detecting quality of service (QoS) violations by comparing observed QoS values to predefined thresholds. These threshold-based adaptation approaches result in late adaptations as they wait until violations have occurred. This may lead to undesired consequences such as late response to critical events. In this paper we introduce a statistical approach CREQA - Control Charts for the Runtime Evaluation of QoS Attributes. This approach estimates at runtime capability of a system, and then it monitors and provides early detection of any changes in QoS values allowing timely intervention in order to prevent undesired consequences. We validated our approach using a series of experiments and response time datasets from real world web services. © 2011 IEEE.

关键词： Quality of service

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Generating essential user interface prototypes to validate requirements 11

Generating essential user interface prototypes to validate r...

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2011 26th IEEE/ACM International Conference on Automated software engineering, ASE 2011

作者： Kamalrudin, Massila Grundy, John Department of Electrical and Computer Engineering University of Auckland Private bag 92019 Auckland 1142 New Zealand Centre for Computing and Engineering Software Systems Swinburne University of Technology PO Box 218 Hawthorn VIC 3122 Australia

ISBN: (纸本)9781457716393

Requirements need to be validated at an early stage of analysis to address inconsistency and incompleteness issues. Capturing requirements usually involves natural language analysis, which is often imprecise and error prone, or translation into formal models, which are difficult for non-technical stakeholders to understand and use. Users often best understand proposed software systems from the likely user interface they will present. To this end we describe novel automated tool support for capturing requirements as Essential Use Cases and translating these into "Essential User Interface" low-fidelity rapid prototypes. We describe our automated tool supporting requirements capture, lo-fi user interface prototype generation and consistency management. © 2011 IEEE.

关键词： Rapid prototyping

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