Information Processes & Technology (IPT) Introduction to Information Skills and Systems

IPT - Topics Information Systems in Context Information Processes Social and Ethical Issues Traditional Stages in Developing a System Complexity of Systems Rules of People Involved in Systems Development Collecting Organising Transmitting and Receiving Displaying

Information Technology Chapter 1 – Page 3

Question? What is Information Technology? How has digital communication improved the transfer of data? Describe the recent changes in banking that have resulted from Information Technology What are some advantages and disadvantages of Information Technology? List some ethical issues that have or may occur by the Information Technology Explain what and why you use Information Technology?

Information System Information systems are systems which provide information to users. The term "information system" would normally refer to a computer based system using a DBMS. A DBMS is a program which creates and manages a database. A database is the file that is then created by a DBMS. Database Management System (DBMS) is a software that enables a database to be created, edited and maintained as well as to be stored and searched to extract information

Information System CONT... Main Components of Information System Lower box the information system affects and is affected by the information processes The Information System is surrounded by a particular environment

Information System CONT...

Components Of Information System Environment – Everything that is influenced by the Information System Purpose – For what need & whom is the information system designed Information Systems – Users, individuals, IDPO, computerised & non-computerised Information Processes – Computerised such as access the internet & non-computerised such as listening to the news Participants – People who carry out information processes with the information system Date/Information – Raw materials of information going in & coming out as processed data I/O Information Technology – Hardware & software used by the information processes

Example of a System Braking system of a car The Purpose is to slow the car down Braking system requires resources or components such as brake pads, break disks, brake pedal Components work together to process/make the car slow down The Environment is everything that is influenced by the system

Diagrammatic Representation of a System Environment – The Car, Including all its various sub-system System – The Braking System Purpose – To slow down the car Processes – Pressing brake pedal, fluid moving to callipers, friction between pads and disk, wheel slowing down, etc Resources – Brake pedal, master cylinder, callipers, brake pads and disks, wheels tyres, etc

Example of a Information System in Context (ISC) Components Examples Environment Doctor’s Surgery Purpose Collect and store patient information for use by doctors Information System Computers, peripherals, personnel, patients data sheet, patient invoices, medical companies, and hospitals Information Processes Sorting and searching data in a database, collecting patient details, entering data into database Participants Doctors, administration staff, computer technicians Data/Information Patient information sheets, patient invoices Information Technology Computer hardware and medical software, patient database, printers

Pool Filtration System A backyard swimming pool contains a filtration system that includes a timer, a pump, a filter, various pipes and electrical connections and a skimmer box. These components work together to keep the pool water clean and healthy. Fig 2.2 shows many of these components, together with the flow of water. Figure 2.2

Pool Filtration System Exercise