System Planning and OOP

• Administrator

  Oversees and maintains the system
• Organisational issue delaying adoption

  Insufficient stakeholder involvement
• Underlying technology

  Hardware and software foundations
• Goal of change management

  Smoothly transition to new processes
• Poor communication effect


  Leads to employee resistance
• Legacy system issue

  Incompatible file formats
• Merging two companies systems

  Causes data structure conflicts
• Risk of remote SaaS

  Dependent on internet availability
• Client owned hardware advantage

  Direct data control
• Gradual rollout installation

  Phased conversion approach
• Drawback of direct changeover

  Possible system downtime
• Cause of date currency confusion

  Different international standards
• Validation rules in migration

  Reject incompatible data
• Real world readiness testing


  User acceptance testing
• Testing with external users

  Beta testing phase
• User role system planning

  Defines access or permission levels
• Business merger IT context

  Combining two organizations systems
• SaaS Software as a Service

  Cloud based software service
• Parallel running

  Old and new systems run simultaneously
• Phased conversion

  Step by step system rollout
• Direct changeover

  Instant switch to the new system
• Data migration

  Moving data between systems
• Importance of user documentation

  Improves user adoption and understanding
• Drawback of printed manuals

  Hard to update or revise
• Online documentation benefit

  Accessible anytime anywhere
• Self instruction

  Independent learning with guides
• Classroom training advantage

  Structured guidance and interaction
• Natural data loss cause

  Physical disasters like floods or earthquakes
• Losing medical records

  Risks patient safety
• Failover systems

  Automatically switch to backups
• Redundancy vs offsite storage

  Redundancy means local copies offsite means remote backups
• Removable media backups

  Regular saves to external drives
• Ransomware effect

  Encrypts data for ransom
• Risk of only online storage

  Requires constant internet access
• Frequent updates strategy

  Use automatic scheduled patches
• Patch

  Software fix for bugs or security issues
• Rollback

  Revert to a previous software version
• Hardware

  Physical computer components
• Peripheral

  External device like a printer or scanner
• Network

  Collection of connected devices