Middleware-based distributed systems software process

Author(s):  
Liu Jingyong ◽  
Zhong Yong ◽  
Chen Yong ◽  
Zhang Lichen

Emulation of software systems integration processes using HTTP/HTTPS protocols is now widely used in the development of distributed systems software systems. The paper discusses the current state of the problem, analyzes the existing tools to solve it, identifies shortcomings, and offers a conceptual approach and program requirements that will automate and debug software development and testing processes using HTTP/HTTPS protocols.


Author(s):  
David N. Card

This article discusses the importance of achieving software quality to ensure the safety and security of maritime systems. Software controls the behaviour of many maritime and offshore systems, making it an essential component of such systems. Software defects have been the primary cause of several accidents and have contributed to many more. All the good work of mechanical engineers and marine architects can be undone by a simple programming error. Unfortunately, standards and risk analyses that address software currently are not part of standard industry practice. This article reviews the motivation for addressing software as part of maritime systems assurance and summarizes the standards and risk analyses available to the industry. Both international standards and classification rules are beginning to be adopted, as part of an increasing recognition of the role of software in all complex systems. This article introduces a framework for examination of software quality, including process product, operational, and customer perspectives. Important elements of this article were introduced in Card [1]. This article focuses on software process quality. Getting the software right the first time is much cheaper than testing and fixing it to reach acceptability. The cost of rework for a typical software development project ranges from 20% to 50% of total project costs. This article identifies some common software process reference models and explains how they help to achieve software quality. While, there is no specific national or international regulation addressing Software Quality Assurance (SQA) in the Maritime and Offshore industry, some recommendations and guidelines have emerged recently. Three classification societies (DNV GL, ABS, and LR) have published software process reference models (standards) as optional rules for offshore vessels. These standards are based on widely accepted ISO/IEC standards that have been endorsed by national standards bodies. Regulations and liability concerns will eventually force the maritime and offshore industry to accept greater requirements for software quality assurance, as has happened in other major industries. For now, if a customer wants quality, he/she must ask for it. These new optional standards make that easier.


2017 ◽  
Vol 57 (2) ◽  
pp. 170-177 ◽  
Author(s):  
DELROY CHEVERS

ABSTRACT Since 1982, the software development community has been concerned with the delivery of quality systems. Software process improvement (SPI) is an initiative to avoid the delivery of low quality systems. However, the awareness and adoption of SPI is low. Thus, this study examines the rate of awareness, use, and benefits of SPI initiatives in Canadian software development firms. Using SPSS as the analytical tool, this study found that 59% of Canadian software development firms are aware of SPI programs and 43% of employees use a form of SPI programs to develop software products. Although the sample size is small and the results cannot be generalized, the sample firms that use SPI programs reported an improvement in software product quality as the greatest benefit. These findings confirm the importance of SPI programs as a means of producing higher-quality software products, which can increase the likelihood of software companies winning global contracts.


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