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Cambridge IGCSE Information and Communication Technology practice

Paper 1 structured question: Implementation

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Implementation

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Paper 1Theory4 marks

A company wants to implement a new customer management system and is considering different implementation methods.

Description

Implementation Methods Comparison

The company is reviewing direct changeover, pilot running, and phased implementation methods. Each has different impacts on risk, cost, and time.

MethodRisk LevelCostTime to Complete
Direct changeoverHighLowShort
Pilot runningMediumMediumLong
Phased implementationLowMediumLong
  1. a

    Compare Compare the risk levels of direct changeover and phased implementation.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Suggest Suggest why a company might choose pilot running over direct changeover.

    Aim for approximately 2 distinct marking points.

    [2]

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Paper 1 structured question: Implementation

Paper 1Theory6 marks

Description

Implementation Methods

The organization is considering four methods to implement the new system: direct changeover, parallel running, pilot running, and phased implementation. Each method has different characteristics, benefits, and drawbacks.

MethodDescriptionAdvantagesDisadvantages
Direct changeoverOld system is replaced immediately by the new system.Quick implementation; no need to run two systems.High risk if new system fails; no fallback.
Parallel runningBoth old and new systems run simultaneously for a period.Safe transition; fallback available.Costly; requires extra resources.
Pilot runningNew system is tested in a small part of the organization first.Reduces risk; allows testing.Takes longer; limited initial use.
Phased implementationNew system is introduced in stages over time.Spreads risk; manageable workload.Complex to manage; longer implementation.
  1. a

    Describe Describe the main characteristic of the direct changeover method.

    Aim for approximately 2 distinct marking points.

    [2]
  2. b

    Explain Explain one advantage and one disadvantage of parallel running.

    Aim for approximately 4 distinct marking points.

    [4]