The life cycle of IP - Information technology in economics and management

IP lifecycle

The process of creating an information system is described using the following hierarchy of concepts: Life Cycle, Phases, Stages, Stages, Works, Processes, Operations, Elements. Information management realizes management functions throughout the entire life cycle of IP, which includes the following phases: "origination", "development", "exploitation", "dismantling" (Figure 8.11).

The most important phases of the life cycle of an IS are the phases nucleation and development which are composed from the following steps: requirements formation and concept development & quot ;; Terms of Reference (TK); technical project (TP); embedding (Bn).

The methodology for creating IP is reflected in the normative documents, the vast majority of which have the force of international standards. They define the terminology, the order of creation and implementation, the requirements for parts, the composition of projects.

The sequence of works related to determining the feasibility of creating, creating and exploiting information systems (IS) is framed in the form of a process (creation or manufacturing) that has a hierarchical description and consists of stages. Each stage is divided into stages, and the stages, in turn, are divided into types of work.

Below is the detailed content of the process of creating and implementing IP, which includes the following stages, stages and some types of work.

• STAGES 1.1 Claim Formation and 1.2 Concept Development & quot ;. The main goal of the stages and works in these stages is to form a well-founded, from the positions

Life Cycle of the Control IC

Fig. 8.11. Management Cycle Life Cycle

customer, the proposal for the creation of IP with certain basic functions and technical characteristics. The main output documents of this stage are: reports and feasibility study of the feasibility of creating an IP with the selected functions and their characteristics; application for the creation of IP and initial technical requirements for IP in the amount corresponding to GOST.

• STAGES 2.1 Terms of Reference (TOR) and 2.2 "Sketch Design". The main objectives of the stages are: confirmation of feasibility and a detailed survey of the possibility of creating an effective IP with functions and technical characteristics formulated in the form of initial technical requirements for the system; planning of the aggregate of all R & D, R & D, design and installation, commissioning, timing of their implementation and organization of performers; preparation of all materials necessary for carrying out design works. The output documents of the stages are: TOR for the creation of an IS, containing technical requirements and a schedule of work agreed upon by the Customer and the Principal Performer; the detailed feasibility study of the decisions outlined in the TOR (if necessary); a scientific and technical report containing the results of the pre-project studies; outline design of the IS.

• STAGE 2.3 Technical Project (TP). The objectives of the work performed at this stage are the development of basic technical solutions for the system being created and the final determination of its estimated cost. The work at this stage is completed with the development of system-wide solutions that are necessary and sufficient for the release of operational documentation for the system as a whole; The design estimates included in the section "Automation" technical construction project; draft applications for the development of new technical means; documentation of special mathematical and technical support, including the technical assignment for programming. The main results of the work of the stage are formalized in the form of a technical design of the IS.

• STAGE 2.4 Working documentation & quot ;. The purpose of the work performed at this stage is the production of working documentation for the system being created. The work of this stage is completed with the release of a working draft of the IS, consisting of project documentation, necessary and sufficient for the acquisition, installation and commissioning of the system's hardware, documentation of software and organizational support necessary and sufficient for the system setup and operation, and the production of special software programs on machine media.

• STAGE 2.5 Embedding (Bn). The goal of the stage and the main result of the work carried out here is the transfer of the existing system to commercial operation, as well as obtaining objective and systematized data on the quality of the system created, the current state and the real effect of the system functioning on the basis of experience of its industrial operation. The analysis of functioning is also carried out during industrial operation. For this purpose, we determine the operational reliability indicators for the system as a whole and for the individual functions it performs, the indicators of the system's technical and economic efficiency, the functional and algorithmic completeness (development) of the system, and the socio-psychological training of the personnel of the system.

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