Data communication

In data

Data

The term data refers to qualitative or quantitative attributes of a variable or set of variables. Data are typically the results of measurements and can be the basis of graphs, images, or observations of a set of variables. Data are often viewed as the lowest level of abstraction from which...

 communications

Information transfer

In telecommunications, information transfer is the process of moving messages containing user information from a source to a sink.Note: The information transfer rate may or may not be equal to the transmission modulation rate.-See also:...

, the ratio of (a) the time

Time

Time is a part of the measuring system used to sequence events, to compare the durations of events and the intervals between them, and to quantify rates of change such as the motions of objects....

 to transmit a text automatically at a specified modulation rate to (b) the time actually required to receive the same text at a specified maximum error

Error

The word error entails different meanings and usages relative to how it is conceptually applied. The concrete meaning of the Latin word "error" is "wandering" or "straying". Unlike an illusion, an error or a mistake can sometimes be dispelled through knowledge...

 rate.

All of the communication facilities are assumed to be in the normal condition of adjustment and operation.

Telegraph communications may have different temporal efficiency factors for the two directions of transmission

Transmission (telecommunications)

Transmission, in telecommunications, is the process of sending, propagating and receiving an analogue or digital information signal over a physical point-to-point or point-to-multipoint transmission medium, either wired, optical fiber or wireless...

.

The practical conditions of measurement should be specified, especially the duration of the measurement.

Industrial Engineering

Industrial engineering

Industrial engineering is a branch of engineering dealing with the optimization of complex processes or systems. It is concerned with the development, improvement, implementation and evaluation of integrated systems of people, money, knowledge, information, equipment, energy, materials, analysis...

The efficiency factor is a performance index, which expresses the relationship between the allowance time and the time taken in the form of percentage.

Efficiency factors are used in performance rating and remuneration calculation exercises. The efficiency factor is an index that extremely simple to use and readily comprehensible, the prerequisite being exact time management for maintaining the allowed times.