ICT Systems

ICT Systems

1. System Analysis

   • Analysis is all about looking at how a job is done at present and seeing if the job could be done better or more efficiently by upgrading or developing a new system.

2. Types of ICT Systems

   • Information
     • Manage Data
       • Like Stock Systems
     • Manage Information
   • Control
     • Control Machines
       • Input, Process and Output
         • Like Robots
   • Communication
     • Successful transport of data from one place to another

3. Definition of ICT System

   • An ICT system is a set-up consisting of hardware, software, data and the people who use them. It commonly includes communications technology, such as the Internet.
   • ICT and computers are not the same thing. Computers are the hardware that is often part of an ICT system.

4. System Life Cycle

   • Mnemonic: Four Animals Die In The Desert Every Month
   • 1. Feasibility Study
   • 2. Analysis
   • 3. Design
   • 4. Implementation
   • 6. Development
   • 7. Evaluation
   • 8. Maintenance
   • 5.Testing

5. Design

   • The next step is to draw up a requirements specification that outlines exactly what the new system will do.
     • This outlines...
       • what hardware is needed
       • what software is needed
       • what inputs are needed
       • what processing must take place
       • what information needs to be output