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U3 - Information systems - Operational issues
Transcript of U3 - Information systems - Operational issues
Specify who can look at, and update, information.
Organisation size / structure may influence setup.
Role in organisation may play a part
Audit log of accesses may be held
IT department to advise on security, and implement chosen rules. Backups Full vs Partial backups
Media (depends on speed of recovery required)
Test backup and recovery Health and Safety Workstation infrastructure
Lighting Organisational policies Confidentiality
Correcting information Business Continuance plans Disaster recovery procedures
What if complete loss of systems – catastrophic failure?
Network failure - Dual network
Computer failure – dual server Does a supermarket have more EPOS terminals than necessary in case of failure?
Does an aeroplane have more than one system in case of failure?
What would City of Bristol College do if College Green burned down? But what if the building and all its infrastructure were effected by fire or flood?
How would a company with one building cope if it were seriously damaged? Costs The total benefits should outweigh the total costs of an IT project
Two main areas to consider:
Cost of development Additional resources Hardware
On-going running costs Cost of development Initial development
Ongoing maintenance (preventative, adaptive, perfective) Impact of increasing sophistication of systems When computing was first introduced, software was relatively simple, and there was little user training required.
Systems are nowadays becoming increasingly sophisticated, and as a result require:
More trained personnel in
How to use equipment
Basic computing features
Transactions, queries and reports More complex software hides complexity from users & often requires both software development and business experts working together An employer and employee have responsibilities
"Ultimately, if the employer fails in his or her responsibilities, this might result in the employee being able to take legal action. If, however, the employee fails to monitor his or her own environment and report any safety issues, there are no grounds for complaint!" Formalising a business continuity plan will help to ensure that, should there e a disruptive incident, the organisation and staff will have a well defined plan to follow. Responsibility