softwareengineering (SE) and human-computer interaction (HCI) are often regarded as two separate entities while the fact is the two share many similarities and should affect each other to produce a better product or ...
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softwareengineering (SE) and human-computer interaction (HCI) are often regarded as two separate entities while the fact is the two share many similarities and should affect each other to produce a better product or software. In this paper, we compare two component frameworks that integrate both HCI and SE together. Our aim is to understand how each framework considers usability in the software development, and, to identify the strengths and weaknesses of both frameworks. The two component frameworks are IKnowU and UBAF. Comparison of these two frameworks can be useful for researchers as we can the four important criteria - model, architecture, usability work and process, that make of a framework which has usability as its paramount objective.
Model-driven code generation is being increasingly applied to developing softwaresystems as a result of its recognition as an instrument to enhance the produced software. At the same time, aspect-oriented programming...
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Model-driven code generation is being increasingly applied to developing softwaresystems as a result of its recognition as an instrument to enhance the produced software. At the same time, aspect-oriented programming languages have come to the mainstream of software development due to their distinctive features to provide better modularization and separation of concerns. As a consequence of this prevalence and recognition of its impact on improving several software quality factors, different approaches have been proposed in literature to generate aspect-oriented model-driven code. This paper provides a comparative review of some existing approaches and discusses important issues and directions in this particular area. The results of this survey indicate aspect-oriented model-driven code generation being a rather immature area. Majority of approaches address structure diagrams only, a fact that limits them to partial code generation. There is a need for research that incorporates behavior diagrams, in order to achieve long term goal of full code generation from aspect-oriented models.
Open Source software is competing successfully in many areas. The commercial sector is recognizing the benefits offered by Open Source development methods that lead to high quality software. Can these benefits be real...
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Open Source software is competing successfully in many areas. The commercial sector is recognizing the benefits offered by Open Source development methods that lead to high quality software. Can these benefits be realized in specialized domains where expertise is rare? This study examined discussion forums of an Open Source project in a particular specialized application domain - electronic medical records - to see how development roles are carried out, and by whom. We found through a qualitative analysis that the core developers in this system include doctors and clinicians who also use the product. We also found that the size of the community associated with the project is an order of magnitude smaller than predicted, yet still maintains a high degree of responsiveness to issues raised by users. The implication is that a few experts and a small core of dedicated programmers can achieve success using an Open Source approach in a specialized domain.
The successful implementation of Service-Oriented development of Distributed Embedded Real-time systems (DERTS) in the recent years has proved the importance of Service-Orientation over previous paradigms. However, ef...
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The successful implementation of Service-Oriented development of Distributed Embedded Real-time systems (DERTS) in the recent years has proved the importance of Service-Orientation over previous paradigms. However, efforts are still needed on systematic Service-Oriented design of DERTS, especially on the modelling of DERTS. The UML standard profile MARTE can be used for modelling of embedded real-time system while UML standard profile SoaML can be used to represent Service-Oriented concepts. Therefore, a thorough investigation of both standard profiles is needed to determine which parts of these profiles are useful for Service-Oriented DERTS development. This paper investigates these profiles in order to highlight the portions of the two profiles and provides some suggestions that can be utilized for Service-Oriented modelling of DERTS. The results of this investigation would be useful in developing a Service-Oriented based meta-model for DERTS.
Embedded systems are proliferating in vast application areas of life with ever increasing multifarious functionalities. Due to the focus of research and development on growing software issues, the naturalness of physi...
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Embedded systems are proliferating in vast application areas of life with ever increasing multifarious functionalities. Due to the focus of research and development on growing software issues, the naturalness of physical interface remains neglected resulting in interaction complexities for the user. In this work we investigate the complexities of three embedded systems including; washing machine; camera; and MP3 player according to the principles of physicality. By assigning quantitative values to each physicality principle, it is evident from the analysis that inverse action and compliant interaction are two powerful principles that if applied properly augment the natural interaction with the device. As the ubiquitous computing is knocking at the market doors, it is significant enough for the embedded system developers to incorporate the natural interaction capabilities in every day embedded devices by studying, discovering, and reducing the complexities of physical user interfaces.
As interest in adopting Cloud computing for various applications is rapidly growing, it is important to understand how these applications and systems will perform when deployed on Clouds. Due to the scale and complexi...
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As interest in adopting Cloud computing for various applications is rapidly growing, it is important to understand how these applications and systems will perform when deployed on Clouds. Due to the scale and complexity of shared resources, it is often hard to analyze the performance of new scheduling and provisioning algorithms on actual Cloud test beds. Therefore, simulation tools are becoming more and more important in the evaluation of the Cloud computing model. Simulation tools allow researchers to rapidly evaluate the efficiency, performance and reliability of their new algorithms on a large heterogeneous Cloud infrastructure. However, current solutions lack either advanced application models such as message passing applications and workflows or scalable network model of data center. To fill this gap, we have extended a popular Cloud simulator (CloudSim) with a scalable network and generalized application model, which allows more accurate evaluation of scheduling and resource provisioning policies to optimize the performance of a Cloud infrastructure.
Component-Based System (CBS) is an approach to build applications from deployed components. It provides efficiency, reliability, maintainability. The challenge of interpreting the results of performance analysis and g...
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Component-Based System (CBS) is an approach to build applications from deployed components. It provides efficiency, reliability, maintainability. The challenge of interpreting the results of performance analysis and generate alternative design to build component system is quite critical in the software performance domain. Although, many approaches have been proposed and were successfully applied to predict software performance, still span of design space hinder the selection of the appropriate design alternative. Meta-heuristics such as Genetic Algorithms (GA) methods have proven its usefulness to solve the problem even with multi-degree of freedom. But, in recent investigations Particle Swarm Optimization (PSO), an alternative search technique, often outperformed GA when applied to various problems. In this paper we describe performance prediction approach based on PSO for component-Based system development. The proposed approach aids developers to effectively trades-off between architectural designs alternatives. Boundary search technique and PSO are used to provoke more efficient results. To the best of our knowledge we are the first who employ PSO in software performance prediction. Outlines of our approach are presented and a case study applied using GA is described to be used by our approach for validation. This paper has concluded that, PSO technique can be used to effectively generate alternatives in spanned design space and facilitate the design decision during the development process.
In this paper we propose a method for using ethnographic field data to substantiate agent-based models for socially-oriented systems. We use the agent paradigm because the ability to represent organisations, individua...
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ISBN:
(纸本)9783642272158
In this paper we propose a method for using ethnographic field data to substantiate agent-based models for socially-oriented systems. We use the agent paradigm because the ability to represent organisations, individuals, and interactions is ideal for modelling socio-technical systems. We present the results of in-situ use of a domestic application created to encourage engagement between grandparents and grandchildren separated by distance. In such domains, it is essential to consider abstract and complex quality requirements such as showing presence and sharing fun. The success of such domestic technologies is based on the meaningful realisation of these difficult-to-define quality goals. Our method addresses the need to adequately inform these quality goals with field data. We substantiate the quality goals with field data collected by introducing an application into the home of three families. The field data adds an understanding of what sharing fun means when "filled" with concrete activities. The quality goals served as a template to explore and represent the rich field data, while the field data helped to formulate the requirements for a more complex and refined technology. This paper's contribution is twofold. First, we extend the understanding of agent-oriented concepts by applying them to household interactions. Second, we make a methodological contribution by establishing a new method for informing quality goals with field data.
In software industry, many organizations either focus their traceability efforts on Functional Requirements (FRs) or else fail entirely to implement an effective traceability process. Non-Functional Requirements (NFRs...
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In software industry, many organizations either focus their traceability efforts on Functional Requirements (FRs) or else fail entirely to implement an effective traceability process. Non-Functional Requirements (NFRs) such as security, safety, performance, and reliability are treated in a rather ad hoc fashion and are rarely traced. This is mainly because of the unique nature of NFRs. They are subjective, relative and they tend to become scattered among multiple modules when they are mapped from the requirements domain to the solution space. Furthermore, NFRs can often interact, in the sense that attempts to achieve one NFR can help or hinder the achievement of other NFRs at particular software functionality. Such an interaction creates an extensive network of interdependencies and tradeoffs among NFRs which is not easy to trace. In a previous work, we proposed a conceptualization of NFRs through the NFRs Ontology. In this paper, we extend the previous work by proposing a change management mechanism for tracing the impact of NFRs on the other constructs in the ontology such as FR or NFR operationalization and vice versa, and providing a traceability mechanism using Datalog expressions to implement queries on a relational model-based representation for the ontology. The proposed traceability queries are then evaluated through a multi-project variation quasi-experiment on regression testing conducted in the industry.
Metric is extremely important for software development. It is a tool for measuring software in both quantitative and qualitative aspects. In addition, metric can be used for determining an achievement of the goals. Th...
Metric is extremely important for software development. It is a tool for measuring software in both quantitative and qualitative aspects. In addition, metric can be used for determining an achievement of the goals. There are some problems that bring difficulties to the design and development of software metrics. Among them, a number of software perspectives that metrics must handle and the way to apply metrics results to support business outcomes are considered important. This paper proposes OPI as a model for implementing software metrics based on business outcomes. There are three steps in this model, defining outcomes (O), defining perspectives (P), and defining indicators (I). A case study has been developed to assess the use of the proposed model. Forty undergraduate students, who have basic knowledge in software metric, use the model to develop metrics from the case study. The preliminary evaluation is based on usability aspect. The result has show that 85 percents of the students think that the model is easy to understand, where 8 and 7 percents say that it is moderate and hard respectively.
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