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Mobile app development is the act or process by which a mobile app is developed for one or more mobile devices, which can include personal digital assistants (PDA), enterprise digital assistants (EDA), or mobile phones. [1]
Application lifecycle management (ALM) is the product lifecycle management (governance, development, and maintenance) of computer programs. It encompasses requirements management, software architecture, computer programming, software testing, software maintenance, change management, continuous integration, project management, and release ...
In the early 1970s, companies began to separate out software maintenance with its own team of engineers to free up software development teams from support tasks. [1] In 1972, R. G. Canning published "The Maintenance 'Iceberg '", in which he contended that software maintenance was an extension of software development with an additional input: the existing system. [1]
The relationship between the size of software and the effort required to produce it is called productivity. For example, if a software engineer has built a small web-based calculator application, we can say that the project effort was 280 man-hours. However, this does not give any information about the size of the software product itself ...
Many SaaS products are offered at different levels of service for different prices, called tiering. This can also affect the architecture for both planes, although it is commonly placed in the control plane. [58] Unlike the application plane, the services in the control plane are not designed for multitenancy. [59]
There are several different types of business models for making profit using OSS or funding the creation and ongoing development and maintenance. The list below shows a series of current existing and legal commercial business models approaches in the context of open-source software and open-source licenses. [ 3 ]
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The ordinary, regular maintenance and repair of fixed assets used in production. Expenditures on durable producer goods which are small, inexpensive and used to perform relatively simple ongoing operations. Expenditures on research and development, staff training, market research and similar activities.