what is system and describe it's types
Answers
Explanation:
Definition of a System and Its Parts
system is an interrelated set of business procedures (or components) used within one business unit, working together for some purpose. For example, a system in the payroll department keeps track of checks, whereas an inventory system keeps track of supplies. The two systems are separate. A system has nine characteristics. A detailed explanation of each characteristic follows, system exists within a larger world, an environment. A boundary separates the system from its environment. The system takes input from outside, processes it, and sends the resulting output back to its environment.Elements of a System:Components : An irreducible part or aggregation of parts that makes up a system; also called a subsystem.
Interrelated components : Dependence of one part of the system on one or more other system parts.
Boundary : The line that marks the inside and outside of a system and that sets off the system from its environment.
Purpose : The overall goal or function of a system.
Environment : Everything external to a system that interacts with the system.
Interfaces : Point of contact where a system meets its environment or where subsystems meet each other.
Constraints : A limit to what a system can accomplish.
Input : Inputs are the information that enters into the system for processing.Output : The main objective of a system is to get an output which is helpful for its user. Output is the final outcome of processing.
Characteristics and types of system
Organization
structure and order
Example: Hierarchical organization in a company.
Computer system: organization of various components like input devices, output devices, CPU and storage devices Interaction
Between sub systems or the components
Example: the main memory holds the data that has to be operated by the ALU.
Interdependence
Component linkage
Component dependence
Integration
How subsystems are tied together to achieve the system objective
Central Objective
Should be known in early phases of analysisTypes of Systems
Physical or Abstract System
Physical system: tangible entities
static or dynamic in nature.
Example : system-computer centre
Desks and chairs are the static parts
Programs, data, and applications can change according to the user's needs.
Abstract systems are conceptual. These are not physical entities. They may be formulas, representation or model of a real system.Open Closed System- Majority of systems are open systems
open system has many interfaces with its environment
can also adapt to changing environmental conditions
can receive inputs from, and delivers output to the outside of system
Closed systems: Systems that don't interact with their environment. Closed systems exist in concept only.Man made Information System
Information system is the basis for interaction between the user and the analyst.
Main purpose-manage data for a particular organization.Further Categorized as:
Formal Information Systems: Responsible for flow of information from top management to lower management But feedback can be given from lower authorities to top management
Informal Information Systems: Informal systems are employee based. These are made to solve the day to day work related problems.
Computer-Based Information Systems: This class of systems depends on the use of computer for managing business applicationsInformation systems (IS)
in organizations capture and manage data to produce useful information that supports an organization and its employees, customers, supliers, and partners. Many organizations consider Information systems to be essential to their ability to compete or gain competitive advamage. Most organizations have come to realize that ail workers need ro participate in the development of informatlon systems.
Transaction processing systems (TPSs)
Management Information systems (MISs)
Decision support systems (DSSs)
Executive information system (EIS)
Expert systems
Communications and collaboration systemAutomation systems
Transaction processing systems (TPSs) process business transactions such as orders, thne cards, payments, and reser'latlons.
Management Information systems (MISs) use the transaction data to produce lnformatlon needed by managers to run the business.
Decision support systems (DSSs) help various decision makers Identify and choose between options or decisions.
Executive information system (EIS) are tailored to the unique information needs of executives who plan for the business and assess performance against those plans.
Answer:
answer:A system is a group of interacting or interrelated elements that act according to a set of rules to form a unified whole.[1] A system, surrounded and influenced by its environment, is described by its boundaries, structure and purpose and expressed in its functioning. Systems are the subjects
Explanation:
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