Qualityone provides knowledge, guidance and direction in quality and reliability activities, tailored to your unique wants, needs and desires. A product line is a group of products that a company creates under a single brand. A software product line is a family of related products that share common assets. Functional quality means that the software correctly performs the tasks its intended to do for its users.
In the context of software engineering, software quality refers to two related but distinct notions. Pdf qualityoriented software product line architecture design. Quality management software qms can help manufacturers measure and therefore improve the quality of their products and processes. Software product lines engineering sple is a systematic approach for developing a family of related software systems at lower costs, in shorter time and with higher quality 27. Maybe their function or channel distribution are the same or similar. Guidelines for developing a product line production plan. The essence of a software product line is the disciplined, strategic reuse of assets in. All of these outcomes may degrade the quality of software architectures for the product line. Pdf the software product line approach to the development of software intensive systems has been used by organizations to improve quality, increase.
Quality assessment in software product lines springerlink. However, the use of qualitybased design methods is limited in software product line spl because of the complexity and variabilities existing in spl. The three aspects of software quality are functional quality, structural quality, and process quality. The strategic and technical benefits delivered by ple are impacting the way companies build, deliver, evolve, and compete with their product lines. Poor quality of products results in the extra cost of production. Automated quality management software systems dramatically improve a companys ability to meet fda regulations and iso quality standards the mastercontrol quality management system qms enables companies to eliminate paperbased quality processes while adhering to iso quality standards and strict regulations imposed by global regulatory bodies. Im taking my answer directly from the first volume of my quality software series.
A product line is a group of related products under a single brand sold by the same company. The firm can either let functions dominate, as in figure 1, with product line groupings under each function or have product lines dominate, as in figure 2, with. An organization has to ensure, that processes are efficient and effective as per the quality standards defined for software products. Meeting and managing quality requirements such as performance, security in a reuse context software product line has a problematic that it is not found in singlesystems. Productline quality attributes are those that are inherent or specific to product lines to undertake a set of related products as well as new future products. A software product line is a family of products designed to take advantage of their common aspects and predicted variabilitys. In addition, we are interested on verifying the quality of reporting experiments in a welldiscussed reuse technique as spl. Its their digital nature, the very fact that they are completely man made for man made needs. As the name suggests quality assurance processes are carried out to assure the quality of the product is in line with the requirement of the client. A manufacturer sometimes has to bear losses due to poor product quality. Telling verbal brand and product stories on packs such as fram oil filters, which use feature and benefit lists on a pack with tick boxes to denote which is the entrylevel product, which is a step up and which is the best. The three aspects of software quality david chappell. In a software product line, quality assessment is especially important because an error or an inadequate design decision can be spread into a lot of products. Still others, from the seis cert program, describe technologies and practices needed to manage software and network security risk.
Our role in product tiering is to truly understand consumer. The cost of testing in software product line is generally higher compared with single software systems. Software quality measurement quantifies to what extent a software program or system rates along each of these five dimensions. Software metrics can be classified into three categories. If it is impossible to test all possible variants, which products should be selected for testing. By using a software productline approach, a manufacturer designs and implements a family of software products to provide. That attribute can also be described as the fitness for purpose of a piece of software or how it compares to competitors in the marketplace as a. This collection includes two decades of sei work on software product lines. Software product line spl engineers put a lot of effort to ensure that, through the setting of a large number of possible configuration. Quality driven architecture design and quality analysis qada is the architecture design method, which has attracted many attentions since it emphasizes on addressing quality issues of the member products at early stage of. Quality management system qms software mastercontrol. Producing a set of related products as a product line has allowed organizations to achieve increased. Qa focuses on improving the processes to deliver quality products to the customer. These characteristics can be used to improve the development and maintenance activities of the software project metrics.
Testing a software product line sei digital library. Modeling quality attributes in software product line. These relationships may cause various types of defects such as inconsistencies, which deteriorate the quality of software products. Quality aware software product line engineering springerlink. Quality modeling for software product lines citeseerx. Overcoming these problems requires reuse capabilities in model transformations. Citeseerx managing the quality of software product line. Productline quality attributes are those that are inherent or specific to productlines to undertake a set of related products as well as new future products. These goals will only be achieved if quality attributes, such as correctness and reliability, are.
Quality inspection software is an appbased solution to facilitate qc inspections commonly used on a smartphone or tablet that replaces spreadsheets and paper. Perhaps one of the most critical aspects of a manufacturing operation is quality management. Describes the characteristics of the product such as size, complexity, design features, performance, and quality level process metrics. Poor product quality what it means to your bottom line. Product line engineering ple is important because of remarkable efficiencies it has shown in the engineering process. The effect of poor quality can lead to exponential costs, both internally and externally, and can hinder your longterm growth if not addressed. It is a powerful solution that enables compliance with the most stringent quality standards, including. Its mission is to help software professionals apply quality principles to the development and use of software and software based systems.
This software category can refer to a broad range of applications that help manufacturers ensure quality across all supply chain activitiesfrom design to production to distribution and eventually, service. Testrelated activities that can be used to form the test process for a product line organization are described. Other books focus on software and system architecture and productline development. This definition of quality has been widely accepted by software professionals. Because the software is configurable we have been able to create templates and workflows that fit how our business actually works. Software functional quality reflects how well it complies with or conforms to a given design, based on functional requirements or specifications. Quality assurance for software product lines springerlink. In modeldriven engineering of applications, the quality of the software architecture is realized and preserved in the successive stages of its lifecycle through model transformations. 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. The three legs are quality planning developing the products and processes required to meet customer needs, quality control meeting product and process goals and quality improvement achieving unprecedented levels of performance. A software product line is a set of softwarereliant systems that share a common, managed set of features satisfying a particular market or mission area, and are built from a common set of core assets in a prescribed way. However, limited support for reuse in contemporary model transformation techniques forces developers of product line architectures to. There is a reason that digital products dont have a well formulated or easy to grasp definition of quality.
What is the quality of a test suite for a product line, anyway. The three main goals of a software product line are to reduce cost, improve delivery time, and improve quality. In software engineering and enterprise software architecture, a software factory is a software product line that configures extensive tools, processes, and content using a template based on a schema to automate the development and maintenance of variants of an archetypical product by adapting, assembling, and configuring frameworkbased components. Software quality and standards the university of edinburgh. Long a standard practice in traditional manufacturing, the concept of product lines is relatively new to the software industry. Software product line an overview sciencedirect topics. A feature is an enduservisible characteristic that satis. Citeseerx document details isaac councill, lee giles, pradeep teregowda. Qcbd dramatically reduces the cost of achieving and maintaining compliance to quality management standards such as iso 9001, iso 485, as9100, ts 16949 and sqf 2000 iso 22000. Perhaps their physical attributes, prices, quality, or type of customers are the same. A software product line is a family of systems that share a common set of core technical assets, with preplanned extensions and variations to address the needs of specific customers or market segments. Quality assurance qa is defined as an activity to ensure that an organization is providing the best possible product or service to customers.
The products are similar and focus on the same market sector. Towards quality assurance of software product lines with. Software product line practice seeks to achieve a number of goals including reduced costs, improved time to market, and improved quality of the products belonging to the product line. If you examine various definitions of quality, you will always. Quality management software qms manufacturing quality. This report expands on the testing practice area described by clements and northrop. Its mission is to help software professionals apply quality principles to the development and use of software and softwarebased systems. You produce poor quality software even though you put huge amounts of effort into defect checking.
Quality aware software product line engineering scielo. This process is experimental and the keywords may be updated as the learning algorithm improves. In software product line engineering, feature models fms represent the variability and commonality of a family of software products. In this paper, we investigate to which extent existing quality modeling. Designed specifically for manufacturing companies, quality collaboration by design qcbd is an integrated quality management software for managing all your quality data.
As we have seen, the quality goals for a systemperformance, reliability. Learn more about new product introduction npi qualityone offers quality and reliability support for product and process development through consulting, training and project support. Clements 2 defines the term software product line as a set of softwareintensive systems sharing a. Comparing approaches for quality evaluation of software. However, there is a way to increase profit quickly by reducing the cost of poor product quality. Thus quality is something that has to be considered throughout the product lifecycle. For manufacturers, this process involves statistical quality control, the process of setting a products specifications and then sampling a small number of units from the production line to see. An aggregated measure of software quality can be computed through a qualitative or a quantitative scoring scheme or a mix of both and then a. Testing a software product line december 2001 technical report john mcgregor. Recent efforts 5, 22, 24 have applied model transformations to product lines. The product line approach to software development is based on the systematic, largescale reuse of development artifacts such as architecture, design, and. The product develop1 a software product line is a set of softwareintensive systems sharing a common, managed set of.
The main task of the software product line architecture design is to develop the reference architecture which represent the base structure of the member products. Quality management software qms qpulse ideagen plc. The product developers create a productspecific production plan from the general production plan created by the coreasset developers. The quality assurance professionals work on development and implementation of all the necessary processes to ensure. Product line engineering for systems and software is a way to engineer a portfolio of related products in an efficient manner, taking full advantage of the products similarities while respecting and. The time a product spends in a line awaiting the next design, order processing or fabrication step. Improving quality of software product line by analysing. Quality management software qms a powerful and flexible qms software system to help manufacturing companies control and comply with the most stringent quality standards. The development of fms may introduce inaccurate feature relationships.