The discipline of information systems

What are information systems?

Information systems are the production infrastructure of the information industry.

The Web and search engines, the computing system of the university and of your bank, the quality assurance system of a factory and the system supporting the physician who prescribes you a medicine are all information systems.

“Information technology and business are becoming inextricably interwoven. I don't think anybody can talk meaningfully about one without the talking about the other.” Bill Gates – Microsoft.


What do information system people do?

  • Define the organization's requirements from its information system,  Design suitable solutions,
  • Develop and integrate solutions, Deploy the information system in the organization,
  • Manage and maintain the information system.


Where do information system people work?

  • Almost any large company today has an information systems department
  • Many Israeli company develop information systems or adopt them to customers
  • Many information systems people are hired as independent consultants


What roles do information system people hold in an organization?

  • System analysis, System development and maintenance, Project management,
  • Infrastructure (networks, data-centers, etc.) management, Internal customer and user support.


What does it require to be an information systems person?

  • Organizational understanding: what makes a business work?
  • Technological understanding: what technologies exist and what are their limitations?
  • Analytical capacity: what technological solution is best for what organization?
  • Interpersonal capacity: what are the client's needs?


How difficult can it be?

A 1995 poll found that only 16% of the information systems development projects are completed on-time, on-budget, and according to the original requirements.

Nearly a third of the projects are canceled, the main reason was found to be: failure to understand the requirements and to define them.