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Ambulance delays and other problems were caused by the introduction of the system. More than 30 people may have died as a result, making it the largest computer-related disaster until the downing of Boeing 737 MAX planes in 2019. The Chief of the London Ambulance Service resigned as a result of the problems and the adverse publicity. £1.5m ...
Tools are often used to track bugs and other issues with software. Typically, different tools are used by the software development team to track their workload than by customer service to track user feedback. [17] A tracked item is often called bug, defect, ticket, issue, feature, or for agile software development, story or epic.
Radiation therapy planning software RTP/2 created by Multidata Systems International could incorrectly double the dosage of radiation depending on how the technician entered data into the machine. At least eight patients died, while another 20 received overdoses likely to cause significant health problems (November 2000).
According to the authors of Design Patterns, there are two key elements to an anti-pattern that distinguish it from a bad habit, bad practice, or bad idea: . The anti-pattern is a commonly-used process, structure or pattern of action that, despite initially appearing to be an appropriate and effective response to a problem, has more bad consequences than good ones.
In aspect-oriented software development, cross-cutting concerns are aspects of a program that affect several modules, without the possibility of being encapsulated in any of them. These concerns often cannot be cleanly decomposed from the rest of the system in both the design and implementation, and can result in either scattering ( code ...
A software development methodology is a framework that is used to structure, plan, and control the life cycle of a software product. Common methodologies include waterfall, prototyping, iterative and incremental development, spiral development, agile software development, rapid application development, and extreme programming.
The sample below is common for waterfall development. The same activities are commonly found in other development models, but might be described differently. Requirements analysis: testing should begin in the requirements phase of the software development life cycle. During the design phase, testers work to determine what aspects of a design ...
It ensures the continuing function of a piece of software under unforeseen circumstances. Defensive programming practices are often used where high availability, safety, or security is needed. Defensive programming is an approach to improve software and source code, in terms of: General quality – reducing the number of software bugs and problems.