The information system contains. What is an information system? School information system. Unified information system

Information Systems They occur every day in our lives - at home, at work, on the street, in transport. And today it’s quite difficult to imagine life without such systems! After all, information systems are our so-called assistants. Any organization can no longer fully engage in any activity without information and analytical systems. One of the simplest examples of an everyday information system can be called a telephone directory, where numbers are indicated, as well as the last name, first name, and patronymic of subscribers.

Enterprises actively use management information systems. With the help of such systems, the life of mankind is significantly easier; this is a huge and invaluable help, because one or more people cannot keep in their heads or on paper data that takes up terabytes of RAM on a computer. However, simply storing such information is not enough; it needs to be systematized and adapted for convenient use.

All Information Systems can be presented in the form of an information directory and an information database. Each of these systems can be divided into others with a more specific focus, for example, by topic - medicine, geography, etc. Thus, each area of ​​activity has its own management information system.

The main function that absolutely every such system pursues is the collection, storage and retrieval of information. A large amount of information often makes searching difficult and requires a lot of time and effort. Management information systems are the main assistant in finding the necessary information. It's very fast, quite convenient and very practical. In addition, information in electronic form will in the near future replace paper documents, since handling electronic documents is much easier, faster and more economical.

By its scale Information Systems are divided into three main groups:

  • Individual are systems created exclusively for one user; they contain personal, personal data that is entered into this system by the user himself. A good example is a notebook.
  • Collective is a system designed for a small group of people and containing information available exclusively to them.
  • Corporate is a system that can include both small and large enterprises.

Examples of various information systems and their main functions:

  1. Mail distribution system, the system is designed to distribute a specific or specified message to various specific mailboxes.
  2. A registry reference information system through which any citizen can make an appointment with a specific specialist at a specific time.
  3. A meteorological system that, based on various instrument indicators, can combine the received data and generate approximate weather data in a certain region.

Information systems: results and conclusions

To summarize, we can say that humanity has come a long way along the path of progress and innovation. Previously, to find the necessary information, a person had to delve into hundreds of documents and reference books, but now he just needs to set the necessary search parameters in the information system and he will receive the result in a few seconds. Moreover, there are a huge number of classifiers that also simplify the search for the necessary information, and also allow you to select certain search criteria. It is also possible to create your own classifier that will satisfy exactly your needs in searching for the required document.

Take advantage of all the achievements of humanity and always stay up to date.

10. Information systems

1. Information systems: definition, purpose of creation, structure.

2. Basic principles of IS development

3. Classification of information systems.

4. Systems of classification and coding of economic information.

IP classes: MR I, MRP II, ERP

1. Information systems: definition, purpose of creation, structure.

Information- this is some information, knowledge about objects and processes of the real world. Economic information is usually displayed in the form of documents.

Document - is a material medium of information that has legal force and is drawn up in the prescribed manner.

System is a complex of interconnected means acting as a single whole. Each system is characterized by structure, input and output flows, purpose and limitations, and the law of operation.

System covers a complex of interrelated elements that act as a single whole in achieving set goals.

Each system includes components

1. The structure of the system is the set of elements of the system and the relationships between them.

2. Functions of each element of the system

3. Input and output of each element and the system as a whole.

4. Goals and limitations of the system and its individual elements (achievements: reducing costs and increasing profits)

Each system has the properties of divisibility and integrity.

IP ensures the collection, storage, and processing of information about the facility, supplying employees of various ranks with information for the implementation of management functions.

EIS is system, functioning which consists in collecting, storing, processing and disseminating information about the activities of any economic entity in the real world.

EIS are designed to solve problems of data processing, office automation, searching for information and individual tasks based on artificial intelligence methods (from lectures).

Information system (IS) is a software and hardware complex designed for automated collection, storage, processing and delivery of information. Typically, information systems deal with large volumes of information that have a fairly complex structure. Classic examples of information systems are banking systems, transport ticketing systems, etc.

IS always specializes in information from a certain area of ​​the real world: economics, technology, medicine, etc. The part of the real world displayed in the IC is called subject area . Therefore, economic IP is IP whose subject area is economics. In this sense, it acts as an information model of the subject area.

Any management system for an economic object has its own information system, called an economic information system.

Economic Information System (EIS) - these are a set of internal and external flows of direct and feedback information communication of an economic object, methods, means, specialists involved in the process of information processing and the development of management decisions.

The information system is an information service system for employees of management services and performs technological functions for the accumulation, storage, transmission and processing of information. It develops, is formed and functions in accordance with the regulations determined by the methods and structure of management activities adopted at a specific economic entity, and implements the goals and objectives facing it.

IP structure

The most common division of EIS subsystems is the separation of supporting and functional parts. The functional part is actually a model of the facility management system. In relation to control systems, a sign of structuring can be the functions of object management, according to which the EIS consists of functional subsystems. The supporting part of the EIS consists of information, technical, software, organizational, legal and other types of support.

Regardless of the characteristics, any EIS consists of functional and supporting parts. The functional part is determined by the set of tasks to be solved, identified by certain types of activities of various economic entities (by function).

The supporting part is a set of interconnected means of a certain type that ensure the functioning of the system as a whole or its individual elements. The supporting subsystems include: information support of IO, technical support of TO, mathematical support of MO, legal support of Prav.O, software software, organizational support of Org.O, technological support of Tech.O

IO is a set of a unified system for classifying and encoding information, unified documentation systems, information flow diagrams circulating in organizations, as well as a methodology for constructing a database. IO is divided into extra-machine and intra-machine.

A non-machine unified documentation system, as well as a classification and coding system for accounting information.

In-machine – documents and arrays of documents located in computer memory in the form of libraries, archives, databases, knowledge bases.

TO is a set of technical means intended for the operation of an IS, as well as the corresponding documentation for these means and technological processes.

Tech.O - focused on the selected information technology for entering, registering, transferring, processing and issuing effective information. (centralized, distributed, decentralized)

Software – includes: general system and special software products, as well as technical documentation (OS, shells, programs...)

Mat.O. – a set of mathematical methods, models, algorithms for the implementation of the goals and objectives of the IS, as well as the functioning of a complex of technical means.

Org.O is a set of methods and means that regulate the interaction of workers with technical means and with each other in the process of developing and operating an IS.

Right. – a set of legal norms that determine the creation of legal status and functioning of IP, regulating the procedure for obtaining the transformation and use of information. (from lectures)

The structure of information includes the following concepts: information space, subject area, object, object instance, object properties, interaction of objects and interaction properties. To describe a subject area means to list objects and the relationships between them, and then describe them with attributes and constituent units of information.

The structure of economic information is quite complex and can include various combinations of information sets that have a certain content. An information set is understood as a group of data characterizing an object, process, or operation. Based on their structural composition, information sets can be divided into:

    requisites,

    indicators,

    Introduction

    1. The concept of information systems and their classification

    2. Structure of electronic information systems

    Conclusion

    Bibliography

    Introduction

    Information system (IS) is a system for collecting, storing, accumulating, searching and transmitting information used in the management or decision-making process. IP includes:

    Inform. – reference fund,

    Information processing language,

    Information carriers,

    Complex of models.

    Automated IS is a set of information, economic and mathematical methods and models, hardware, software, organizational, technological tools and specialists.

    Automated IS is designed for the efficient operation of economic IS.

    There are a large number of different types of information systems in organizations: from traditional to complex ones operating on the basis of local and global computer networks.


    1. The concept of information systems and their classification

    Definition 1. An information system is a set of interconnected elements representing information, human and material resources, processes that ensure the collection, processing, transformation, storage and transmission of information in an organization.

    Definition 2. Information technology is a set of methods, procedures and tools that implement the processes of collecting, processing, converting, storing and transmitting information.

    Information in the modern world has become one of the most important resources, and information systems (IS) have become a necessary tool in almost all areas of activity.

    The variety of problems solved with the help of information systems has led to the emergence of many different types of systems, differing in the principles of construction and the rules for processing information embedded in them.

    Information systems can be classified according to a number of different characteristics. The classification under consideration is based on the most essential features that determine the functionality and design features of modern systems. Depending on the volume of tasks to be solved, the technical means used, the organization of functioning, information systems are divided into a number of groups (classes) (Fig. 1.).

    Based on the type of stored data, information systems are divided into factual and documentary. Factual systems are designed for storing and processing structured data in the form of numbers and texts. Various operations can be performed on such data. In documentary systems, information is presented in the form of documents consisting of titles, descriptions, abstracts and texts. Unstructured data is searched using semantic features. Selected documents are provided to the user, and data processing in such systems is practically not performed.

    Based on the degree of automation of information processes in a company's management system, information systems are divided into manual, automatic and automated.

    Rice. 1.1. Classification of information systems

    Manual information systems are characterized by the absence of modern technical means of information processing and all operations are performed by humans.

    In automatic information systems, all information processing operations are performed without human intervention.

    Automated information systems involve the participation of both humans and technical means in the information processing process, and the main role in performing routine data processing operations is given to the computer. It is this class of systems that corresponds to the modern concept of “information system”.

    Depending on the nature of data processing, ISs are divided into information-retrieval and information-solving.

    Information retrieval systems enter, systematize, store, and provide information at the user’s request without complex data transformations. (For example, IS for library services, reservation and sale of transport tickets, hotel reservations, etc.)

    Information decision systems also carry out information processing operations according to a specific algorithm. Based on the nature of the use of output information, such systems are usually divided into control and advisory systems.

    The resulting information from the control systems is directly transformed into decisions made by humans. These systems are characterized by computational tasks and processing of large volumes of data. (For example, IS for production planning or orders, accounting.)

    Advising information systems produce information that is taken into account by a person and taken into account when forming management decisions, rather than initiating specific actions. These systems simulate intelligent processes of processing knowledge, not data. (For example, expert systems.)

    Depending on the scope of application, the following classes of IP are distinguished.

    Organizational management information systems are designed to automate the functions of management personnel of both industrial enterprises and non-industrial facilities (hotels, banks, shops, etc.).

    The main functions of such systems are: operational control and regulation, operational accounting and analysis, long-term and operational planning, accounting, sales management, supply management and other economic and organizational tasks.

    Process control systems (TP) - serve to automate the functions of production personnel to monitor and manage production operations. Such systems usually provide for the presence of developed means for measuring parameters of technological processes (temperature, pressure, chemical composition, etc.), procedures for monitoring the admissibility of parameter values ​​and regulating technological processes.

    Computer-aided design (CAD) IS - designed to automate the functions of design engineers, designers, architects, designers when creating new equipment or technology. The main functions of such systems are: engineering calculations, creation of graphic documentation (drawings, diagrams, plans), creation of design documentation, modeling of designed objects.

    Integrated (corporate) IS - used to automate all functions of the company and cover the entire cycle of work from activity planning to product sales. They include a number of modules (subsystems) operating in a single information space and performing functions to support relevant areas of activity.

    An analysis of the current state of the IS market shows a steady trend of growing demand for organizational management information systems. Moreover, the demand continues to grow specifically for integrated control systems. Automation of a separate function, for example, accounting or sales of finished products, is considered a completed stage for many enterprises.

    IS customers began to put forward more and more requirements aimed at ensuring the possibility of integrated use of corporate data in managing and planning their activities.

    Thus, an urgent need arose to formulate a new methodology for building information systems.

    The purpose of such a methodology is to regulate the IS design process and provide control over this process in order to ensure that the requirements for both the IS itself and the characteristics of the development process are met. The main tasks that the corporate IS design methodology should help solve are the following:

    Ensure the creation of corporate information systems that meet the goals and objectives of the organization, as well as the requirements for automation of the customer’s business processes;

    Guarantee the creation of a system with a given quality within a given time frame and within the established project budget;

    Maintain a convenient discipline for maintaining, modifying and expanding the system;

    Ensure continuity of development, i.e. use of the organization’s existing information infrastructure (background in the field of information technology) in the developed IS.

    The introduction of the methodology should lead to a reduction in the complexity of the IP creation process through a complete and accurate description of this process, as well as the use of modern methods and technologies for creating IP throughout the entire IP life cycle - from concept to implementation.

    IC design covers three main areas:

    Design of data objects that will be implemented in the database;

    Designing programs, screen forms, reports that will ensure the execution of data queries;

    Taking into account the specific environment or technology, namely: network topology, hardware configuration, architecture used (file-server or client-server), parallel processing, distributed data processing, etc.

    Information systems design always begins with defining the purpose of the project. In general terms, the goal of the project can be defined as solving a number of interrelated tasks, including ensuring at the time of system launch and throughout the entire period of its operation:

    The required functionality of the system and the level of its adaptability to changing operating conditions;

    Required system throughput;

    Required system response time to a request;

    Failure-free operation of the system;

    Required level of security;

    Ease of operation and system support.

    According to modern methodology, the process of creating an IS is a process of constructing and sequentially transforming a number of coordinated models at all stages of the IS life cycle (LC). At each stage of the life cycle, models specific to it are created - organization, IS requirements, IS project, application requirements, etc. Models are formed by working groups of the project team, saved and accumulated in the project repository. The creation of models, their control, transformation and provision for collective use is carried out using special software tools - CASE tools.

    It is worth considering this issue from different points of view, which will create an overall picture. Experts say that it is an interconnected set of tools, personnel and methods used to store, process and provide information necessary to solve specific tasks.

    Basic moments

    When considering, it must be said that it can have different scales and purposes. There are other features as well. Systems may differ in the extent to which they cover different areas of the company’s activities; they may be intended not only for maintaining warehouse or accounting records, but also for finance, production accounting and document control of the enterprise.

    Regardless of their purpose, they all have a whole set of properties that have become common to them. The use of computers is essential for processing information in any modern system. They are tools and technical base in combination with specialized programs installed on them. If we talk about what an information system is, then it should be noted that its basis can be called tools developed for storing and accessing data. They are intended for use by the end user, who should not be a computer specialist. This includes client applications designed to provide an intuitive interface.

    Types of ICs

    Such systems are divided into documentary and factual. The first ones are focused on solving problems related to production management, accounting and other similar ones. The latter are focused on finding unambiguous answers to queries, as well as solving a given problem in only one way. These can be heterogeneous reference and information systems, search systems, and also those engaged in operational data processing. Documentary information systems are designed to solve problems that do not provide clear answers to questions. Here we can give an example that has become increasingly popular in enterprises recently. Mixed type of IP is allowed.

    Scale

    Speaking about what an information system is, it is worth touching on such an important issue as its scale. It is customary to distinguish between individual or desktop IS, network IS, which includes several users, as well as the largest – enterprise-scale. It is quite difficult to imagine a modern company without using such a system. It doesn’t matter in what area the enterprise’s activities are concentrated, its size is not so important, its IP in any case serves as the core that ensures effective management of production, trade or timely, high-quality provision of services. With its help, the solution of management problems is simplified, it is possible to free some employees from solving various routine matters, the likelihood of errors is reduced, the number of paper documents is reduced, and there are also opportunities for significant cost reduction. For this reason, any modern enterprise is distinguished by the fact that everything related to the information system and ensuring its smooth functioning has become the subject of special control by management personnel.

    City cadastral information system

    IS urban cadastre is one of the ways to ensure information transformation of cadastral data on objects of different types of property in a populated area. It is a complex of technical means and software, material and labor resources, which are aimed at creating information about real estate objects and its full presentation in the form of tangible documents.

    The city information system plays a very important role in providing data, since it serves as an effective means of creating an information space that is used to manage social, business, economic and other activities in it. In the current socio-economic conditions, the creation of such a space becomes possible only on the basis of absolute automation of processes such as the collection, processing, storage and updating of cadastral data on real estate. In addition, the provision of information systems provides access to all specified data, operational exchange between government and commercial structures of various kinds, services and organizations of the city.

    The need for such a structure

    At the moment, certain state, commercial and municipal organizations (land markets, mortgage banks, real estate privatization committees, tax inspectorates, insurance companies and others) are almost unable to fulfill their direct responsibilities without organizing the timely exchange of cadastral information that is reliable during this period of time. That is why the development of an information system of this kind makes it possible to solve not only the problems of protecting property rights and taxation, but also other issues.

    Non-cadastral tasks

    Prompt, complete and high-quality information provision of bodies managing the city, commercial, economic and other structures and individual citizens with complete and reliable information about the physical condition of real estate of various forms of ownership and other elements of the urban environment;

    Analysis of the use of infrastructure, natural, labor, material, technical means and resources of the city, their distribution by type of ownership, etc.;

    Work on the preparation of urban planning and architectural projects, design of utility networks and other things.

    Difficulties at work

    The design of information systems of this kind has become necessary due to the fact that until recently there were no analogues on the domestic market capable of solving such complex problems. There are no similar solutions abroad either, but in recent years the intensification of work in this area is simply amazing. The first Russian development in this area was the AIS GK, created by the Novosibirsk branch of the Russian Scientific Research Center "Earth". It is aimed at providing a variety of structures with reliable cadastral information: administration, privatization committee, insurance bureaus, tax inspectorates, institutions and enterprises, mortgage, land and investment banks, as well as individuals who own real estate.

    Features of data accounting

    It is important to understand that certain services and organizations of the city are capable of being not only passive consumers of cadastral information, but also shaping it, having a huge impact on the formation of the urban information space. It is for this reason that the development of AIS GC was carried out taking into account the possibility of using software products of similar users, and also provided for the safety of their fleet of technical measuring instruments. The unified information system was developed taking into account all these features.

    Construction principles used

    Modularity in terms of construction, which makes it possible to ensure the normal functioning of each individual element, and therefore of their entirety as a whole;

    They have a very flexible software architecture, which allows you to include new subscribers in the network and exclude them from it without reducing the operability, reliability and performance of the entire structure, and also does not require any reconfiguration;

    Data is fully protected from loss due to failures or unauthorized access to the information system;

    The classification and coding of data on elements of the urban environment is unified;

    Information is entered in a unified format, which is made possible through the use of system configuration tools provided by the operating system and network DBMS;

    The results of geodetic changes are processed in a fully automated mode, regardless of what methods were used to collect them;

    The information in the database is presented in topological integrity, it is possible to edit all types of cadastral data;

    Operational control of the reliability and correctness of data in all operations with them.

    Such a unified information system is capable of solving not only cadastral problems directly, but also many others associated with the development of plans for the development of territories and their redevelopment, environmental protection, rational placement of housing facilities, modeling of transport flows, property management and much more. In addition, such a system easily incorporates user devices, tools and computers.

    Alternative options

    The school information system represents a completely new approach to education. With the help of important elements, timely provision of data is achieved. For example, an element such as an electronic diary is used to post information about grades and homework, allowing teachers to quickly interact with students. This includes a student portfolio that demonstrates their activities in and outside of school. The school information system supports the use of personal privacy settings through a personal account. Parents can quickly receive reliable information not only about academic performance, but also about homework.

    So, all this allows you to understand what an information system is and how it helps in solving many important issues.


    Introduction……………………………………………………………………………….2

    1. Information system and its types……………………………………………...3

    2. Composition of automated information systems……………………………9

    3. Technological process of information processing…………………………….16

    4. The role of information technology in the design, operation and modification of information systems………………………………………………………20

    5. CASE technologies…………………………………………………………………...22

    Conclusion………………………………………………………………………………………...28

    List of used literature……………………………………………………………..29

    Introduction

    The 21st century, which marks the beginning of the third millennium, has challenged humanity in the form of pervasive international communications, the World Wide Web, the Internet, and the emergence of a virtual economy. And who today can say with complete confidence that, leaving the 21st century. will not bring humanity a more serious threat in the form of the emergence of “machine (i.e., electronic) intelligence” and a “human-machine” economy? XXI century provides us with an opportunity to look at the development of the economy since its inception, and also to take an intelligent look at the future of the economy and humanity.

    Using communication means, you can, without leaving your home, manage production lines or the financial and commercial activities of an enterprise, maintain accounting records, study remotely at an educational institution, read books in the library, buy goods, make banking and stock exchange transactions. and other financial transactions, etc. Appearance at the end of the 20th century. information technology has led to the emergence of the most profitable business - the interactive business.

    We can say with complete confidence that in the middle of the 21st century. The leaders of the world economy and international trade will be those countries that will have high technology and knowledge-intensive industries. This means that the export of Russian oil, minerals, trade in weapons and heavy engineering products by Russian companies will take one of the last places in international trade and will no longer generate the income that Russia had at the end of the 20th century. .

    In a market economy, the approach to management is radically changing, from functional to business-oriented, and the role of information technology is radically changing. A focus on business process-based management provides a competitive advantage for an organization in highly competitive environments, and business process-based management cannot be effectively implemented without the use of information technologies and systems.

    1. Information system and its types.

    Information system is an interconnected set of means, methods and personnel used to store, process and issue information in the interests of achieving a set goal. The modern understanding of an information system involves the use of a computer as the main technical means of processing information. It is necessary to understand the difference between computers and information systems. Computers equipped with specialized software are the technical basis and tool for information systems. An information system is unthinkable without personnel interacting with computers and telecommunications.

    In the legal and regulatory sense, an information system is defined as “an organizationally ordered set of documents (an array of documents) and information technologies, including the use of computer technology and communications that implement information processes” [RF Law “On Information, Informatization and Information Protection” dated February 20, 1995, No. 24-FZ].

    The processes that ensure the operation of an information system for any purpose can be conventionally represented as consisting of the following blocks:
    entering information from external or internal sources;
    processing input information and presenting it in a convenient form;
    outputting information for presentation to consumers or transfer to another system;
    Feedback is information processed by people of a given organization to correct input information.

    In general, information systems are defined by the following properties:
    1) any information system can be analyzed, built and managed on the basis of general principles for building systems;
    2) the information system is dynamic and developing;
    3) when building an information system, it is necessary to use a systematic approach;

    4) the output of the information system is the information on the basis of which decisions are made;

    5) the information system should be perceived as a human-machine information processing system.

    The introduction of information systems can contribute to:
    obtaining more rational options for solving management problems through the introduction of mathematical methods; freeing workers from routine work due to its automation; ensuring the reliability of information; improving the structure of information flows (including the document flow system); providing consumers with unique services; reducing costs for the production of products and services (including information).

    The type of information system depends on whose interests it serves and at what level of management. Based on the nature of the presentation and logical organization of stored information, information systems are divided into factual, documentary and geoinformation systems.

    Factual Information Systems accumulate and store data in the form of multiple instances of one or several types of structural elements (information objects). Each of these instances or some combination of them reflects information on a fact or event separately from all other information and facts.

    In documentary (documented) information systems A single element of information is a document that is not divided into smaller elements, and information during input (input document), as a rule, is not structured, or is structured in a limited form. For the entered document, some formalized positions can be set (date of production, artist, subject).

    In geographic information systems the data is organized in the form of separate information objects (with a certain set of details) linked to a common electronic topographical basis (electronic map). Geographic information systems are used for information support in those subject areas in which the structure of information objects and processes has a spatial-geographical component (transport routes, utilities).

    In Fig. 1.1 presents the classification of information systems according to the characteristics of their functional subsystems.

    Rice. 1.1. Classification of information systems according to functional criteria.

    In the economic practice of production and commercial facilities, the typical types of activities that determine the functional attribute of the classification of information systems are production, marketing, financial, and personnel activities.

    Classification of information systems by management levels
    Highlight:
    operational (operational) level information systems – accounting, bank deposits, order processing, ticket registration, salary payments; information system for specialists – office automation, knowledge processing (including expert systems);
    tactical level information systems (middle management) – monitoring, administration, control, decision making;
    strategic information systems – formulation of goals, strategic planning.

    Operational (operational) level information systems
    The operational level information system supports executive specialists by processing data on transactions and events (invoices, invoices, salaries, loans, flow of raw materials). The purpose of the information system at this level is to respond to queries about the current status and monitor the flow of transactions in the company, which corresponds to operational management. To cope with this, the information system must be easily accessible, continuously available and provide accurate information. The operational level information system is the link between the company and the external environment.

    Information systems of specialists. Information systems at this level help specialists working with data, increase the productivity and productivity of engineers and designers. The task of such information systems is to integrate new information into the organization and assist in the processing of paper documents.
    Office automation information systems Due to their simplicity and versatility, they are actively used by employees of any organizational level. They are most often used by semi-skilled workers: accountants, secretaries, and clerks. The main goal is data processing, increasing the efficiency of their work and simplifying clerical work.

    These systems perform the following functions: word processing on computers using various word processors; production of high-quality printed products; archiving of documents;
    electronic calendars and notebooks for maintaining business information; email and audiomail; video and teleconferences.

    Information systems for knowledge processing, including expert systems, absorb the knowledge necessary for engineers, lawyers, scientists when developing or creating a new product. Their job is to create new information and new knowledge.

    Tactical level information systems (middle level)
    The main functions of these information systems are: comparison of current indicators with past indicators; drawing up periodic reports for a certain time (rather than issuing reports on current events, as at the operational level); providing access to archival information, etc.

    Decision support systems serve semi-structured tasks, the results of which are difficult to predict in advance (they have a more powerful analytical apparatus with several models). Information is obtained from management and operational information systems. Characteristics of decision support systems:
    provide solutions to problems whose development is difficult to predict;
    equipped with sophisticated modeling and analysis tools;
    allow you to easily change the formulation of the problems being solved and the input data;
    are flexible and easily adapt to changing conditions several times a day; have technology that is as user-oriented as possible.

    Strategic information systems.Strategic Information System- a computer information system that provides decision support for the implementation of long-term strategic development goals of the organization. There are situations when the new quality of information systems forced to change not only the structure, but also the profile of companies, promoting their prosperity. However, in this case, an undesirable psychological situation may arise associated with the automation of certain functions and types of work, since this may put some of the workers in a difficult situation.