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A five level pyramid model of different types of Information Systems based on the information processing requirement of different levels in the organization. The first level represents transaction processing systems to process basic data. The second level represents office support systems to process information in office. The third level represents management information systems to process information by managers. The fourth level represents decision support systems to process explicit knowledge. The fifth level represents executive information systems to process tacit knowledge.
"A Computer(-Based) Information System is essentially an IS using computer technology to carry out some or all of its planned tasks. The basic components of computer based information system are:
(1) Hardware - these are the devices like the monitor, processor, printer and keyboard, all of which work together to accept, process, show data and information.
(2) Software - are the programs that allow the hardware to process the data.
(3) Databases - are the gathering of associated files or tables containing related data.
(4) Networks - are a connecting system that allows diverse computers to distribute resources.
(5) Procedures - are the commands for combining the components above to process information and produce the preferred output.
The first four components (hardware, software, database and network) make up what is known as the information technology platform. Information technology workers could then use these components to create information systems that watch over safety measures, risk and the management of data. These actions are known as information technology services." [Information systems. Wikipedia]
This pyramid diagram was redesigned using the ConceptDraw PRO diagramming and vector drawing software from Wikimedia Commons file Five-Level-Pyramid-model.png. [commons.wikimedia.org/ wiki/ File:Five-Level-Pyramid-model.png]
This file is licensed under the Creative Commons Attribution 3.0 Unported license. [creativecommons.org/ licenses/ by/ 3.0/ deed.en]
The triangle chart example "Information systems types" is included in the Pyramid Diagrams solution from the Marketing area of ConceptDraw Solution Park.
Pyramid diagram
Pyramid diagram, pyramid, triangle,

IDEF0 method, IDEF0 notation IDEF0 Diagrams

IDEF0 method, IDEF0 notation
IDEF0 Diagrams visualize system models using the Integration Definition for Function Modeling (IDEF) methodology. Use them for analysis, development and integration of information and software systems, and business process modelling.
This hotel computer reservations system cycle process chart example was redesigned from the Wikimedia Commons file: По-запросу.jpg.
[commons.wikimedia.org/ wiki/ File:По-запросу.jpg]
"A computer reservations system or central reservation system (CRS) is a computerized system used to store and retrieve information and conduct transactions related to air travel, hotels, car rental, or activities. ...
Modern GDSes typically allow users to book hotel rooms, rental cars, airline tickets as well as activities and tours." [en.wikipedia.org/ wiki/ Computer_ reservations_ system]
The cycle process diagram example "Hotel reservation system" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Sales Flowcharts solution from the Marketing area of ConceptDraw Solution Park.
Hotel computer reservation system - Cycle process diagram
Hotel computer reservation system - Cycle process diagram, user, straight arrow, manual filling, landing page, email, diagonal arrow, clerk, man, man torso, call - taker, woman,

telecommunication networking, networking and telecommunications, telecommunications network, computer systems networking and telecommunications Telecommunication Network Diagrams

telecommunication networking, networking and telecommunications, telecommunications network, computer systems networking and telecommunications
Telecommunication Network Diagrams solution extends ConceptDraw PRO software with samples, templates, and great collection of vector stencils to help the specialists in a field of networks and telecommunications, as well as other users to create Computer systems networking and Telecommunication network diagrams for various fields, to organize the work of call centers, to design the GPRS networks and GPS navigational systems, mobile, satellite and hybrid communication networks, to construct the mobile TV networks and wireless broadband networks.

ConceptDraw Solution Park ConceptDraw Solution Park

ConceptDraw Solution Park
ConceptDraw Solution Park collects graphic extensions, examples and learning materials

How To use Switches in Network Diagram

Special libraries of highly detailed, accurate shapes and computer graphics, servers, hubs, switches, printers, mainframes, face plates, routers etc.