Software engineering

Software engineering

The systematic application of scientific principles and disciplines to the development, operation, and maintenance of software to perform prespecified functions with maximum economy and efficiency.

Industry: Computer; Software

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Software engineering

N-plus-one address instruction

Computer; Software engineering

A computer instruction that contains n+l address fields, the last containing the address of the instruction to be executed next.

One-address instruction

Computer; Software engineering

A computer instruction that contains one address field. For example, an instruction to load the contents of location A.

Two-address instruction

Computer; Software engineering

A computer instruction that contains two address fields. For example, an instruction to add the contents of A to the contents of B.

N-address instruction

Computer; Software engineering

A computer instruction that contains n address fields, where n may be any non-negative integer.

Direct instruction

Computer; Software engineering

A computer instruction that contains the direct addresses of its operands.

Input-process-output(IPO)chart

Computer; Software engineering

A diagram of a software system or module, consisting of a rectangle on the left listing inputs, a rectangle in the centre listing processing steps, a rectangle on the right listing outputs, and ...

Block diagram

Computer; Software engineering

A diagram of a system, computer, or device in which the principal parts are represented by suitably annotated geometrical figures to show both the functions of the parts and their functional ...