large software system development

Top PDF large software system development:

Integrating cancer survivors’ experiences into UK cancer registries: design and development of the ePOCS system (electronic Patient-reported Outcomes from Cancer Survivors)

Integrating cancer survivors’ experiences into UK cancer registries: design and development of the ePOCS system (electronic Patient-reported Outcomes from Cancer Survivors)

Our ongoing feasibility study has already highlighted potential system improvement modifications. For instance, the Tracker’s operation speed could be greatly increased, and QTool could be enhanced by inclusion of a quicker means of entering large lists of pre-generated IDs/passwords, and by addition of reporting functionality. ePOCS has generally been built flexibly, however, and the constituent components can be readily modified and extended. QTool, in particular, has been built to be easily augmented with further functionality; a QTool-version2 is already underway, which includes a means of entering thousands of IDs/ passwords simultaneously, as well as reporting functionality. QTool-version2 is also being built with extra features such as capability for EPR linkage, and question-dependency based on responses to items in a different PROM. In the near future, subject to funding, we aim to link QTool with interactive voice recognition software, which would allow PROMs to be completed orally by telephone, as well as online, thus enabling participation by patients who are not Internet enabled and/or high literate.
Show more

8 Read more

Large Scale Threat Traffic Analysis and IDS Development using Software

Large Scale Threat Traffic Analysis and IDS Development using Software

Abstract: Background/Objectives: Today, modern society is constantly changing with the development of innovations. This development is the leading to the fourth industrial revolution in the fields of AI, cloud and Big data. However, a hyper-connected society is vulnerable to cyber-attacks. However, existing countermeasures have not kept in pace with the rapid development in cyber threats. It is necessary to determine critical and dangerous elements in massive data. This requires new networking technology that can malicious traffic. Methods/Statistical analysis: To address the aforementioned issues, we developed Bro-IDS, which can monitor large-scale traffic for cyber threats. Bro-IDS is an intrusion detection system based on open source software. Bro-IDS also can create network traffic for various logs and be used for traffic measurement or forensic purposes. We perform experiments to analyze large-scale threats in real-time using the ELK Stack (Elastic search, Log stash, Kibana) to validate Bro-IDS. Findings: We performed a cyber threat analysis based using our security monitoring system from July 25th to August 5th 2018 on KREONET. During this period, all connections generated approximately 610 million logs and the total payload collected was approximately 300GB.First, weird logs and notice logs were generated. Weird logs are generated when abnormal traffic is routed through the network and notice logs are generated when anomalous signals, such as those from cyber-attacks, are generated. Regarding weird logs, split routing occurred 58 million and occupied approximately 33% of the total .An average of approximately 500 events per day accounted for Notice logs and they occupied 93.5% of the total of Notice log and address scan attacks for 57,116 logs. These cyber-attacks were used to determine specific IP addresses in the target network. Regarding protocols, TCP was used most often, accounting for 79.2% of the total, followed by UDP at 18.6% and ICMP at 2.1%. Regarding ports, port 443 accounted for 68% of the total, followed by port 25, 587, 2191, and 23.In terms of attacks, most attempts were made from South Korea, followed by Europe and the US. Improvements/Applications: We implemented Bro-IDS, a system for real-time detection and analysis of cyber threats on large-networks using the ELK stack. The results indicate that the proposed model has scalable security and can guarantee throughput corresponding to the bandwidth in a high-speed network environment.
Show more

5 Read more

Software Engineering (9th Edition) pdf

Software Engineering (9th Edition) pdf

As I was writing the final chapters in this book in the summer of 2009, I realized that software engineering was 40 years old. The name ‘software engineering’ was proposed in 1969 at a NATO conference to discuss software development problems— large software systems were late, did not deliver the functionality needed by their users, cost more than expected, and were unreliable. I did not attend that conference but, a year later, I wrote my first program and started my professional life in software. Progress in software engineering has been remarkable over my professional life- time. Our societies could not function without large, professional software systems. For building business systems, there is an alphabet soup of technologies—J2EE, .NET, SaaS, SAP, BPEL4WS, SOAP, CBSE, etc.—that support the development and deployment of large enterprise applications. National utilities and infrastructure— energy, communications, and transport—all rely on complex and mostly reliable computer systems. Software has allowed us to explore space and to create the World Wide Web, the most significant information system in the history of mankind. Humanity is now faced with a new set of challenges—climate change and extreme weather, declining natural resources, an increasing world population to be fed and housed, international terrorism, and the need to help elderly people lead satisfying and fulfilled lives. We need new technologies to help us address these problems and, for sure, software will play a central role in these technologies.
Show more

790 Read more

Requirements Analysis and Design in the Context of Various Software Development Approaches

Requirements Analysis and Design in the Context of Various Software Development Approaches

In addition, software engineers can also improve the quality of design by making it more simple and easy to understand. They can achieve this level of understandability and easiness by breaking high-level design into smaller manageable components. A good software designer always attempts to make a design document that depicts accurate description of the system (i.e. how different components of the system communicate and how the system works). Additionally, software design also involves a variety of other aspects such as coupling and cohesion. In this scenario, coupling is the extent to which different components or modules of a system interact with each other. Cohesion is a degree of how independent a component is. The basic objective is not to divide a software application into a number of modules, but also their associated elements and relationships should be in the same module. Coupling refers to the extent to which different modules of a system communicate with other modules. The high level of coupling makes the software design difficult to understand. Hence, in order to modularize a software design effectively, software designers need to minimize coupling and maximize cohesion. This ideology allows software designers to capture large and complicated operations into simpler ones [3, 24].
Show more

11 Read more

II TRADITIONAL SDLC METHODOLOGIES

II TRADITIONAL SDLC METHODOLOGIES

Lightweight methodologies are a compromise between no process and too much process. These new methods were developed to efficiently manage software projects subjected to short timelines and excessive uncertainty and change. Lightweight SDLCs are Adaptive Software Development (ASD),Agile Software Process (ASP), Crystal, Dynamic System Development Method (DSDM),Feature Driven Development (FDD), Rational Unified Process (RUP). Strengths of these new light methodologies include their simpler processes and easier acceptance by developers who are only familiar with code and fix techniques. In addition, these lightweight SDLCs aid developers in thinking clearly about the end products they are creating. Disadvantages include their inability to handle large development teams. Lightweight methodologies are most appropriate when there are uncertain and volatile requirements, responsible and motivated developers, and customers who wish to become involved.
Show more

6 Read more

A Review of Scaling Agile Methods in Large Software Development

A Review of Scaling Agile Methods in Large Software Development

Besides the individual roles previously described, SAFe has additional program level teams as well as described below. A Business owner team that consists of three-five stakeholders have “the ultimate fiduciary, governance, efficacy and ROI responsibility for the value delivered by a specific release train”; A Release Management Team (RMT) has the tasks for scheduling, managing and governing of synchronised released; a DevOps team that provides “tighter integration of development and operations as well as maintains deployment readiness for the program; a System Team whose responsibilities constitute providing assistance in building and using the development environment infrastructure which includes Continuous Integration, build environments, testing platforms, and Test Automation framework as well as integrating code from Agile Teams, conducting end-to-end system testing, and showing solutions to stakeholders at each iteration. When 125 people are needed to work on one large product, the value stream level may be created. This level is to insure that multiple large teams remain aligned. So, at this level, there is a need for Value Stream Engineers, Solution Manager and Solution Architect roles to assist the teams at the program level.
Show more

10 Read more

Extracting Development Tasks to Navigate Software System

Extracting Development Tasks to Navigate Software System

A software developer or other any stakeholder who joins an existing software development team must come up to speed on a large for varied amount of information before becoming productive. Today’s all types of documentation suffers from a number of potential problems such as documentation written by people who can't write.They are unavailable, developer can't find it when they need it. Today’s search engines are not sufficient for enabling effective navigation of software documentation because they require stakeholder to use search terms that match the vocabulary used by the documentation writers and documentation may be in the form of soft copy of project or hardcopy.There is still a gap between the information needs for software developers and the structure of today’s documentation. Today’s structure comes with sections and subsection it can only be enabled effective navigation if the section headers are adequate for the information needs of developers. We divided our main project with different module such as Pre-processing, Task Extraction and Task Navigation techniques used in the software development industry. In short software,Extracting Development Tasks To Navigate Software Documentation documentation enlists enough and necessary requirement that are required for the project development, but there is still a gap between the information needs of software developers and the structure of this documentation. Any kind of structure with sections and subsections can only be enable effective navigation if the section headers are adequate clues for the information needs of developers.
Show more

6 Read more

Aspect-Oriented Reengineering of an Object-oriented Library in a Short Iteration Agile Process

Aspect-Oriented Reengineering of an Object-oriented Library in a Short Iteration Agile Process

Constraints and limitations of this study where discussed in Section 5. Future work needs to look at issues surrounding the practical application of AO refactoring in agile development including team development, training, tool support, testing, and quality control. Beuche and Beushe highlighted major issues with transferring aspect technology into practice [58] that can serve as a guide to needed work in the area. They state that AO programming has yet to prove its value in terms of making software development cheaper and that AO programming might be useful for certain functions but not all. Ascertaining how AO refactoring can be most judiciously employed and incorporated into existing processes is an important factor. It is also worth noting that AO programming is still little used outside the Java community and large-scale success stories are few; but there are island of success, see [47, 59, 23] for the state- of-the-art in large-scale deployment. For large code bases it can be difficult to balance the amount of time spent investigating areas where AO can be introduced, and the overall benefit gained from doing so. In such cases prior developer knowledge of the system being reengineered could be advantageous to tip the balance in favour of AO refactoring as well as use of the automation tools discussed in Section 5.
Show more

14 Read more

Integrating cancer survivors' experiences into UK cancer registries: design and development of the ePOCS system (electronic Patient reported Outcomes from Cancer Survivors)

Integrating cancer survivors' experiences into UK cancer registries: design and development of the ePOCS system (electronic Patient reported Outcomes from Cancer Survivors)

Our ongoing feasibility study has already highlighted potential system improvement modifications. For instance, the Tracker’s operation speed could be greatly increased, and QTool could be enhanced by inclusion of a quicker means of entering large lists of pre-generated IDs/passwords, and by addition of reporting functionality. ePOCS has generally been built flexibly, however, and the constituent components can be readily modified and extended. QTool, in particular, has been built to be easily augmented with further functionality; a QTool-version2 is already underway, which includes a means of entering thousands of IDs/ passwords simultaneously, as well as reporting functionality. QTool-version2 is also being built with extra features such as capability for EPR linkage, and question-dependency based on responses to items in a different PROM. In the near future, subject to funding, we aim to link QTool with interactive voice recognition software, which would allow PROMs to be completed orally by telephone, as well as online, thus enabling participation by patients who are not Internet enabled and/or high literate.
Show more

9 Read more

Volume 30: Graph and Model Transformation 2010

Volume 30: Graph and Model Transformation 2010

The concept of abstract data types – on the other hand – was developed in the early 1970ies by computer scientists like Parnas and Hoare influenced by the debacles of large software systems in the late 1960ies. At that time it was not at all clear whether abstract data types and software systems in general could be modeled by mathematical concepts. On the contrary, the vast majority of practical computer scientists at that time was convinced that mathematical methods may be useful for numerical analysis of algorithms, but not at all for software system development.
Show more

7 Read more

An Approach to Analyse and Quantify the Functional Requirements in Software System Engineering

An Approach to Analyse and Quantify the Functional Requirements in Software System Engineering

software system engineering SwSE.This SwSE can be specifically applied in the development of large complex software systems that provides a powerful tool for process and product manageme[r]

5 Read more

Editorial for Volume 9 Number 3: Models, Resources and Activities of Project Scheduling Problems

Editorial for Volume 9 Number 3: Models, Resources and Activities of Project Scheduling Problems

The Project management is considered as The planning, monitoring and control of all aspects of a project and the motivation of all those involved in it to achieve the project objectives on time and to the specified cost, quality and performance [1]. A project is a temporary and unique effort that, with a set of resources, it looks forward to satisfying specific objectives in a period with certain time [2]. The application areas of the project management usually are defined in terms of: technical elements (development of software, pharmaceutical drugs or civil engineering, Production systems planning), elements of the administration (Project Scheduling Problems, Manufacturing Management [3], Technology Management, contracts with the government or development of new products), and groups of industry (industrial engineering, automobiles, chemicals or financial services).
Show more

17 Read more

197606 pdf

197606 pdf

Software; Software Project Management; Command & D~cisio~ Definition and Design; Radar Software; Weapons, Missile Simulation; Operating System Software Development; Structured Prog~ammin[r]

202 Read more

Development of iCU A Plagiarism Detection Software

Development of iCU A Plagiarism Detection Software

Most plagiarism detection systems are either universal (that is, can process text documents of any nature) or specially designed to detect plagiarism in a particular context e.g. in source code files. The methodology adopted in the development of iCU is limited only to textual search. Enterprise level plagiarism check software (such as Turnitin), would normally compare input documents against very large databases. The iCU software uses the free-access google search engine database for its comparison check interface. The implication of this is that it wouldn‟t bring out as much results as a well-known plagiarism detector like Turnitin would do. In most cases, plagiarism is intentional and deliberately harmful in nature. But on the other hand, it might as well be the result of ignorance, which could be avoided if a researcher had better understanding of the nature of plagiarism. Plagiarism is to academia what piracy is to the entertainment industry. In the fight against plagiarism, it can either be proactively prevented, by educating students and researcher alike on its consequences, or detected after the fact. There are two methods of plagiarism detection: manual detection and computer-aided detection. Since detecting plagiarism manually can be hard even for a skilled teacher, this work is focused on the latter, by examining already-existing tools for detecting plagiarism. There are numerous plagiarism detection systems, however, not all of them implement completely new methods and algorithms.
Show more

6 Read more

Ethics as a Quality Driver in Agile  Software Projects

Ethics as a Quality Driver in Agile Software Projects

Quality testing sets up measurement benchmarks to evaluate quality processes and identifies weaknesses in those processes so that quality issues will not repeat themselves. It requires the analysis of the tools, metrics, and processes used by management (including specification processes); analysis of the product’s de- velopment; and testing activities. The classic functional testing and QA approach of verifying the functionality, load and performance of developed features in the post-delivery phase conflicts with the fast-shipment orientation that Agile relies on and can cause delays and uncertainty prior to a product’s release. Hence, a common practice is to plan testing activities during development and to allocate the capacity of developers for the correction of future defects [15] [16]. It is clear that software quality is a vague concept-and one that is difficult to define. That is why there are multiple approaches for the measurement of the quality of soft- ware products [17].
Show more

13 Read more

Hardware-Software Codesign of a Large Vocabulary Continuous Speech Recognition system.

Hardware-Software Codesign of a Large Vocabulary Continuous Speech Recognition system.

• Hidden Markov model (HMM) based speech recognition [8]: Modern recognition procedure emphasize on HMM based recognition, which has a rich mathematical structure to provide accurate results for a typical large vocabulary continuous recognition systems. This approach is popular because of the precise mathematical framework, the ease and availability of training algorithms for estimating parameters of the models from finite training sets of speech data. An added advantage is the flexibility of the resulting system where one can easily change the size or architecture of the models to suit the user’s requirements. A HMM can be used to reduce a non-stationary process to a piecewise-stationary process. Speech could be assumed as short-time stationary signal for a period of 10 milliseconds and modeled as a stationary process. Speech could thus be realized as a Markov model, which could be trained automatically and making it computationally feasible.
Show more

58 Read more

Novel software system development for finance

Novel software system development for finance

First, this paper addresses some key issues of the application of computer-based technology in finance. Second, a wider agenda for computing in finance is motivated to meet the technical and strategic demands of the application of computer based technology in finance. Third, the principles and qualities of EM as an approach to SSD are overviewed. The suitability of EM as a framework for SSD in finance is then discussed with reference to case studies drawn from the finance domain (the financial enterprise, the financial market, financial engineering, and financial analysis). In particular, EM contributes: principles for software integration and virtual collaboration in the financial enterprise; a novel modelling approach adapting to the new trading model in the financial market; computer-based support for distributed financial engineering; and principles for a closer integration of the software system development (SSD) and financial research development (FRD) activities.
Show more

16 Read more

Software development for power system analysis

Software development for power system analysis

PROJECT AIM: This project aim to develop a software to determine the response of a power supply system in Singapore when the system is subjected to disturbances. The study of dynamic response to sudden changes and disturbances in electrical power systems is carried out. Common disturbances include fault, power flow, switching, load changes, motor starting, loss of generation, loss of excitation, and blocked governor, etc

259 Read more

A software development system for the Motorola M6800

A software development system for the Motorola M6800

number mode in memory restart and clears non-system memory DELT deletes DUMP displays EXEC starts EXIT transfers FILE initiates file LIST lists the current LOAD loads a file MOVE moves a[r]

116 Read more

197507 pdf

197507 pdf

Software Project Management; Weapon System Software Development; New Business Acquisition; Micro Programming Systems; Real-Time Executive System Design; Computer Systems Architecture; En[r]

118 Read more

Show all 10000 documents...