To get an idea of the costs involved, let us consider the current state of practice in the industry. Learn about thousands of features and functions, and how enterprise software really works. These attributes can be defined as follows: With multiple dimensions to quality, different projects may emphasize different attributes, and a global single number for quality is not possible. This model classifies all software requirements into 11 software quality factors. Hence, pursuit of higher productivity is a basic driving force behind software engineering and a major reason for using the different tools and techniques. A defect could be some problem in the software that causes the software to crash or a problem that causes an output to be not properly aligned or one that misspells some word, etc. This means that quality of delivered software can only be determined 6 months after its delivery. In the industrial-strength software domain, there are three basic forces at play—cost, schedule, and quality. The exact definition of what is considered a defect will clearly depend on the project or the standards the organization developing the project uses (typically it is the latter). Since maintenance accounts for nearly 70% of the cost of the software life cycle [Schach 1999], the importance of this quality characteristic cannot be overemphasized. 2. Cost, schedule and quality: The cost of developing a system is the cost of the resources used for the system, which, in the case of software, are the manpower, hardware, software, and the other support resources. Improving Software Economics: Reducing Software product size, improving software processes, improving team effectiveness, improving automation, Achieving the required quality, peer inspections. Software needs to be maintained because of the residual defects remaining in the system. If the project cost has been computed as part of a project bid to a customer, a decision then has to be made about the price quoted to the customer. One of the hardest things to do in software development is to determine how long and how much it will take to deliver a new software product. COQ in the software development world refers to the costs teams are investing to ensure their products/services are of high quality and defect-free. With this as the major quality criterion, the quality objective is to reduce the number of defects per KLOC as much as possible. Those functionality changes may occur according to changing requirements, or an obligation if the development process is one of the iterative methods. It helps to keep track of the employee's project hours, maintain invoices and to create consolidated reportsScheduling Software, I found this blog really interesting. Table 12.2. shows generally used software quality attributes that can be considered during the quality planning process. Similarly, if productivity is higher, the potential of developing the software in less time improves—a team of higher productivity will finish a job in less time than a same-size team with lower productivity. Extensibility is the ability of software to add functionality without damaging system, so it may be thought of as a subset of flexibility. The term "software quality metrics" illustrate the picture of measuring the software qualities by recording the number of defects or security loopholes present in the software. 2. Computer-aided software engineering (CASE), Component model of software development, Software reuse. Today, quality is one of the main mantras, and business strategies are designed around it. It affects positively at software cost, quality, service to the customer and speed of delivery. 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