Software quality and maintenance

It takes both types of activities to reach desirable quality goals. The main purpose of software maintenance is to modify and update software application after delivery to correct faults and to improve performance. However, quality considerations frequently expand well beyond that. The software industry today and where were at in software quality state of the practice in software quality.

Quality concerns are often intertwined with software maintenance, which involves tracking software through actual operations. Components of standardization, certification and sqa system assessment. In this chapter from his book on software quality engineering, stephen h. The book presents a comprehensive discussion on software quality issues and software quality assurance sqa principles and practices, and lays special emphasis on implementing and managing sqa. Bad code requires a larger effort and costs more to adapt to new requirements. Software quality assurance is a set of rules for ensuring the quality of the software that will result in the quality of software product. Customers use the iqs industrial equipment maintenance software. There are several kpis what we call a quality model you can use to measure a software product quality. Software quality assurance sqa is simply a way to assure quality in the software. Software quality assurance sqa is a process which assures that all software engineering processes, methods, activities and work items are monitored and comply against the defined standards. O ver the past few years, abundant knowledge has been acquired and published on software quality assurance. Preventive maintenance involves implementing changes to prevent the occurrence of errors. Software is more easily maintainable if it has high quality.

This includes modifications and updations when the customers need. International journal of computers issue 2, volume 5, 2011 the impact of software quality on maintenance process anas bassam albadareen. Ieee std 10611992 standard for software quality metrics methodology seoc2 spring 2005. Structural software quality software that exhibits a robust architecture and can operate in a multitier environment without failures or degraded. Quality assurance, quality control and testing the basics of software quality management 7 if applied to the process of car manufacturing, having a proper quality assurance process means that every. These are more closely associated with process and product metrics than with project metrics. Ftmaintenance is available as a software as a service saas subscription, cloudbased purchase, or onpremise solution.

Nov 02, 2015 software quality is one of the pivotal aspects of a software development company. It is unreasonable to expect that quality assurance will be 100 percent effective in preventing maintenance and commissioning errors. Measuring cost of quality coq on sdlc projects is indispensible for. Software engineering software quality assurance geeksforgeeks. It is a powerful solution that enables compliance with the most stringent quality standards, including. Quality assurance, quality control and testing the. Corrective maintenance of a software product may be essential. Glossary economy equity insurance budget marketing mutual fund space technology testing human. Abbreviated as sqap, the software quality assurance plan comprises of the procedures, techniques, and tools that are employed to make sure that a product or service aligns with the requirements defined in the srs software requirement specification. The sap system is a software built by germanbased sapse to streamline. To this end, xyz company has developed and documented a quality management system.

Quality management system software qms software blulink. Software maintenance is the process of modifying a software product after it has been delivered to the customer. Software programqualitysoftwaredesignsoftwarecodingsoftwaredocumentationprogramminglanguagesused lackofcommondatadefinitions increasinginventory excessiveresourcerequirements environment growth evolvingchange newhardware management maintenancecontrols maintenancetechniques maintenancetoolusage standardsenforcement andprocedures users personnel. The iqms quality management software qms offers an extensive suite of tools and capabilities necessary to costeffectively manage quality issues while streamlining manufacturing and business operations and facilitating collaboration. A new decision should be addressed for the developing of every new system feature and its quality objectives.

Software quality and standards the university of edinburgh. Here are the top five quality metrics that really matter. In 2015, the sere conference ieee international conference on software security and reliability and the qsic conference ieee international conference on quality software were combined into a single conference, qrs, with q representing quality, r for reliability, and s for security, sponsored by the ieee reliability society. Sig delivered a highquality report analysis in which you really see that this is the core expertise of sig. Quality management system software quarta evo, based on a workflow engine, combines high functional completeness to a modern web infrastructure, collaborationoriented intraand interplant, and performance measurement processes. Software maintenance in software engineering is the modification of a software product after delivery to correct faults, to improve performance or other attributes a common perception of maintenance is that it merely involves fixing defects. How to maintenance cleaning the print head using the head cleaning utility using the control panel buttons.

Key aspects of quality, quality, software, software quality. Evaluate how new technologies and projects impact software quality assurance and the systems development life cycle and understand how to benefit from their application. Software quality assurance for maintenance ieee xplore. This is accomplished by many and varied approaches. Software quality and maintainability international workshop sqm. Every programmer is expected to do unit testing in parallel. Categories of software maintenance maintenance can be divided into the following. Kan discusses several metrics in each of three groups of software quality metrics. Sqm is defined as software quality maintenance rarely. Once the product is shipped to the customers then maintenance comes into the picture. Software maintenance overview software maintenance is widely accepted part of sdlc now a. Improve quality and compliance, reduce risk, and increase visibility with iqs enterprise quality management software.

Software engineering software process activities part 3. Software quality metrics can be further divided into three categories. Predelivery activities include planning for postdelivery operations, maintainability. They should also receive regular training on the plants food safety, gmp, and haccp programs. Quality management software qms manufacturing quality control. Equipment management quality management software, document. If you find that the printed image is unexpectedly faint or dots in the printed image are. Software quality maintenance how is software quality. Iso 84021986 standard defines quality as the totality of features and characteristics of a product or service that bears its ability to satisfy stated or implied needs. The main purpose of software maintenance is to modify and update software application. This class includes software quality metrics, software quality costs, which includes control of maintenance and development activities and the introduction of managerial involvement in order to reduce the risk of quality. This document explains the software quality assurance plan sqap for mse project of lakshmikanth ganti. For example, maintenance on a bullet train to correct vibrations that are causing noise and passenger discomfort. Measuring software quality in software engineering.

Software quality assurance sqa is a means of monitoring the software engineering processes and methods used to ensure proper quality. The impact of software quality on maintenance process. He also describes the key metrics used by several major software developers and discusses software. Like any other program, the preventive maintenance program should be regularly audited to verify compliance to policies and procedures. The process of software quality control sqc is governed by software quality assurance sqa. Remember the last time someone committed to do something for you and either failed to deliver or didnt meet your standards. Whether you are in the software business offering services to clients or operate in the food, hospitality or travel industry, service quality. These subjects are all integral parts of the quality assurance process, and like aircraft technology itself, continuing education is the key to a successful career in both aviation maintenance and. An aggregated measure of software quality can be computed through a. There are four types of maintenance, namely, corrective, adaptive, perfective, and preventive. Activities are performed during the predelivery stage as well as during the postdelivery stage. Software quality metrics are a subset of software metrics that focus on the quality aspects of the product, process, and project.

One approach, and a good starting point is the standard iso 9126 that recommend to measure the internal quality, the external quality and the quality in use of your product and based on the different metrics you can gather infer the different aspects of quality. Quality control qc is activities designed to ensure that desired quality levels are actually achieved by the process. Software maintenance is a very broad activity that includes. Maintainability is a multifaceted quality attribute each of the facets must be analyzed to. Metrics for software maintenance software quality metrics. If you want to manage your planned maintenance system, mxsuite is the software for you to make sure your ships remain in. Software engineering software maintenance geeksforgeeks. Guidelines for the application of 9001 to the development, supply, installation and maintenance of computer software quality measurement. Qrs 2019 software quality, reliability, and security. Mar 18, 2017 software engineering software process activities part 3. Adaptive compliance engine ace adaptive compliance engine. Software maintenance is the process of modifying a software product after it has. Dec 18, 2017 software quality assurance is a set of rules for ensuring the quality of the software that will result in the quality of software product.

Service quality management encompasses the monitoring and maintenance of the varied services that are offered to customers by an organization. Measuring software maintainability is nontrivial and there exists no single metric to measure it accurately. While sqa is oriented towards prevention, sqc is oriented towards detection. It caused delays and rework, along with a lot of frustration.

Software quality and software economics the main problem with troubled software projects is there are too many serious defects. Software quality is one of the pivotal aspects of a software development company. Enterprise quality management software and compliance. Functional software quality software that combines low defect rates and high levels. Xyz company recognizes its responsibility as a developermanufacturer of quality software productsprovider of quality services. The distribution of types of maintenance by type and by percentage of time consumed. In this guide, software maintenance is defined as the totality of activities required to provide costeffective support to software.

It is very important to provide good sales services to keep the customers happy and satisfied. This class includes software quality metrics, software quality costs, which includes control of maintenance and development activities and the introduction of managerial involvement in order to reduce the risk of quality, schedule, and budget in the project. Based on facts and their extended knowledge of software quality they advised three clear topics for further improvement. Software quality control software testing fundamentals. It is the set of activities which ensure processes, procedures as well as standards suitable for the project and implemented correctly. Software quality is conformance of the software solution. Software quality and code quality can make a world of difference for software maintenance. Software maintenance overview software maintenance is widely accepted part of sdlc now a days.

There are number of reasons, why modifications are required, some of them are briefly mentioned below. Perfective maintenance is concerned with the change in the software that occurs while adding new functionalities in the software. Sig getting software right for a healthier digital world. Adaptive maintenance is concerned with the change in the software that takes place to. Software development projects are very intricate and risky endaviours requiring careful integration of various disciplines, technical activities, project management etc. Relyence provides key insights into product reliability and quality. Read differences between software quality assurance and software quality control. With mxsuite, designed and developed by mastex software thanks to the input of our clients, you can manage all processes related to your fleet in one single system.

Reverse engineering is also useful in software testing, it helps the testers to. Quality software is reasonably bug or defect free, delivered on time and within budget, meets requirements andor expectations, and is maintainable. Software quality assurance is a process which works parallel to development of a software. Quality management qm is an integral part of the supply chain and logistics functions and within the sap system. Apr 19, 2007 maintenance personnel should be qualified to perform maintenance tasks. Abstract the software is always required to be developed and maintained a quality to the rapid progresses in industry, technology, economy, and other fields.

Software quality measurement quantifies to what extent a software program or system rates along each of these five dimensions. These defined standards could be one or a combination of any like iso 9000, cmmi model, iso15504, etc. Navy cool snapshot software quality and maintenance. Harrington quality management system hqms is our flagship worldclass software for enterprise process improvement, compliance and qual. Within a strict time schedule interviews and code analyses were done. Software quality assurance starts from the beginning of a project, right from the analysis phase. Planned maintenance system software for ships mastex. More mature software development organizations use tools, such as defect leakage matrices for counting the numbers of defects that pass through development phases prior to detection and control charts, to measure and improve development process capability. Pdf the impact of software quality on maintenance process. The equipment management module maintains a master list of equipment for calibration and preventive maintenance with this module you can document basic equipment information along with detailed calibration and or preventive maintenance instructions.

The software maintenance, which can last for 56 years or even decades after the development process, calls for an effective plan which can address the scope of software maintenance, the tailoring of the post deliverydeployment process, the designation of who will provide maintenance, and an estimate of the lifecycle costs. Perspectives on improving software maintenance department of. Intellects quality suite is a software solution proven to enhance quality operations. It stands for all the modifications and updations done after the delivery of software product. Testing phases in a plandriven software process software maintenance. The simple, fast, and scalable quality management platform for young. Ftmaintenance computerized maintenance management software cmms is a single maintenance software platform for managing work orders, equipment, mro inventory, and preventive maintenance activities. Achieving stateoftheart quality control can greatly reduce defects and result in successes.