The life cycle (LC) captures the most significant, characteristic of a particular state of the object, determines their main characteristics and value in these States, and identifies the processes between the two successive States.
The purpose of the introduction of this concept is to combine different technologies related to the process of existence of the object in a single purpose technology, in which certain laws of transformation of role functions, components of local technologies. Such an integral goal contains second-order goals:
o determination of the main characteristics of the process phases;
o the study of the mutual influence of the phases on each other;
o the use of integrated criterion of efficiency of the life cycle;
o provide implementation management of life cycle phases.
For example, the life cycle of a computer system consists of the following steps:
– detailed system planning;
– evaluation of its implementation;
– analysis of economic efficiency;
– definition of information, functional and other requirements;
– design of a system capable of performing the necessary functions;
– development of software that makes up the system;
– testing and debugging of programs;
– putting the system into operation and its maintenance;
– removing the system from operation.
Information life cycle. The concept of “information” is considered only if there is a source of information and its recipient, as well as a communication channel between them. The use of information also requires a certain system of perception (the brain, for example), which is able to handle this information.
Information – any information about the event, entity or process that is the object of operations of perception, transformation, storage, use and transfer
Information is used in all spheres of human activity;-interrelation and coordination of actions are possible only thanks to information.
The life cycle of information is quite short. Information arises from the interpretation of data by the user, or from the transfer of knowledge between users, or from the transformation of knowledge into data. The short duration of the cycle is due to the lack of the stage of information storage, since the interpretation of information (i.e. already in the perception and awareness of it), the following options are possible: the decision is made and the information loses its importance; information is transformed into new knowledge.