CHAPTER 1: Flashcards
INFORMATION SYSTEM
What is IS(Information System)
Set of related components that produce specific results
Uses in business OF IS
proivde for support for business function ( help the business with)
1- order processing
2- inventory control
3-human resource (HR)
4-acounting
handling routine day-to-day task
help manager to make better decision
Components of Information Systems
Hardware
Software
Data
Processes
People
Components of Information Systems (HardWare) and what is the hardware in IS
Definition: :Is the physical layer of the information system
8 Components are included in
Servers
Workstations
Networks
Scanners
Digital capture devices
Telecommunications equipment
Fiber-optic cables
Mobile devices
Components of Information Systems (Software) What is the software in IS and what are the two components of the software?
Definition: Programs that control the hardware and produce the desired information or results
consists of two systems and application software
application software, four Examples of
a program that support day to day business function and provides the users with the informatioins that they need. such as, Example of application software:
1.legacy system (Example)
.old system
2. enterprise application, such as:
old processing system
payroll system
spreadsheet
presentation software
3.vertical system
design to meet or match the uniqe requirement of a spacial business or industry
4. horizntal system
system that can be adopted for use in many defferint company
system software
in system software
Manage Hardwar Components in such as
1. operating system
2. security devices
3. devices
Components of Information Systems (Data) and what is the Data in IS
is raw of facts that IS(information sysstem) transforms to useful information, has no inherent meaning and can’t be used for make decision
Components of Information Systems (process) and what is the process in IS
describes the task and business function that user, manager and IT staff perform to achieve specific results and it also represents the actual day-to-day business operation, for example, generating report
people
who have interest in IS(inforation system) and communicate with it or use the inforation that generate for example, stakeholder
Types of Information Systems 5 types
Classified by organisational levels, mode of data, processing, system objectives and type of support provided.
Enterprise computing systems
Transaction processing systems
Business support systems
Knowledge management systems
User productivity systems
Enterprise computing systems
Support company-wide operations and data management requirements
Enterprise resource planning (ERP)
Many hardware and software vendors target the enterprise computing market
Transaction processing systems
Involve large amounts of data and are mission-critical systems
To provide transaction in order to update records and generate reports i.e to perform store keeping function
Such as bill system, payroll system, and stock control system
Business support systems
Designed to take relatively raw data available through a Transaction Processing System and convert them into a summarized and aggregated form for the manager, usually in a report format.
Management information systems (MIS)
Such as Sales management systems, Human resource management system
Knowledge management systems
Called expert systems
Simulate human reasoning by combining a knowledge base and inference rules
Many knowledge management systems use a technique called fuzzy logic
