Short for Constructive Cost Model, a method for evaluating and/or estimating the cost of softwaredevelopment. There are three levels in the COCOMO hierarchy:
Basic COCOMO: computes software development effort and cost as a function of program size expressed in estimated DSIs. There are three modes within Basic COCOMO:
Organic Mode: Development projects typically are uncomplicated and involve small experienced teams. The planned software is not considered innovative and requires a relatively small amount of DSIs (typically under 50,000).
Semidetached Mode: Development projects typically are more complicated than in Organic Mode and involve teams of people with mixed levels of experience. The software requires no more than 300,000 DSIs. The project has characteristics of both projects for Organic Mode and projects for Embedded Mode.
Embedded Mode: Development projects must fit into a rigid set of requirements because the software is to be embedded in a strongly joined complex of hardware, software, regulations and operating procedures.
Intermediate COCOMO: an extension of the Basic model that computes software development effort by adding a set of “cost drivers,” that will determine the effort and duration of the project, such as assessments of personnel and hardware.
Detailed COCOMO: an extension of the Intermediate model that adds effort multipliers for each phase of the project to determine the cost driver��s impact on each step.
COCOMO was developed by Barry Boehm in his 1981 book, Software Engineering Economics.
Short for Conference on Data Systems Languages, and pronounced code-a-sill, an organization founded in 1957 by the U.S. Department of Defense. Its mission was to develop computer programming languages. CODASYL was responsible for developing COBOL. The organization is no longer extant, but the term CODASYL is still used sometimes to refer to COBOL.
Short for common operating environment. A COE specifies a common IT architecture within an organization and promotes interoperability and cross-platform capabilities among an organization’s devices. All workstations within an organization run the same software and use the same interfaces so that its devices are standardized and information presentation and platform interfaces are consistent throughout the […]
Acronym for Computer Output to Laser Disk.The storage of data on optical disk, such as CD-ROMs. Storing large volumes of data on laser disk, as opposed to microfiche or microfilm, lets the user access and search this information on a computer, avoid the duplication and security costs of protecting physical documents or film, and more […]
(1) In DOS systems, the name of a serial communications port. DOS supports four serial ports: COM1, COM2, COM3, and COM4. However, most software uses system interrupts to access the serial ports, and there are only two IRQ lines reserved. This means that the four COM ports share the same two IRQ lines. Typically, COM1 […]
The DOS file that contains the DOS command processor.