1. Mr L Challenor ICT Teacher www.TeachITwithMrC.co.uk
2/5/2018
BTEC Unit 29 – Lesson 01 To Upgrade or Not Upgrade… That is the Question
Mr L Challenor
ICT Teacher

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Session Objectives
Understand the reasons why we install and upgrade software,
Understand factors which must take into consideration when deciding on whether to go ahead with an installation or upgrade.

3. Why change / upgrade your software??
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Why change / upgrade your software??

4. Prompts for Change Problems with existing systems,
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Prompts for Change
Problems with existing systems,
Out-dated, vulnerable, no longer supported, incompatible
Additional functionality required,
Sometimes an upgrade, sometime complete new installation
New hardware requiring new or upgraded software,
New drivers, new OS
External prompts for software bug fixes,
Often automatic updates to patch bugs
Other e.g. company policy
Upgrade period, meet industry standards so compatible

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Justifying Change
Just because there is a prompt for change, it doesn't mean that an organisation will do it.
Costs are involved including:
Cost of the software, training, down-time needed to install, incompatibility issues
However there are also benefits including:
Easier to use, able to do more, improved system security
It is important that there is a good business case made for the change to go ahead.
Perceived benefits must be shown to outweigh the costs of the new software or upgrade before it can go ahead.

7. Perceived costs outweigh the benefits
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The Change Seesaw
BENS
Perceived costs outweigh the benefits
COSTS X

8. Perceived benefits outweigh the costs
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The Change Seesaw
COSTS
Perceived benefits outweigh the costs
BENS

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BTEC Book – Unit 29 pp4-5

10. 2/5/2018
P1, M1, D1 Evidence
This task requires you to write a short report explaining the rationale behind changing software.
P1 requires you to describe why you might consider to upgrade software,
M1 needs you to explain the advantages and disadvantages of installing and upgrading software,
For the award of D1 you need to use the content already considered to justify why the antivirus software, used by the charity needs upgrading.

11. D1 - justify a particular installation or upgrade
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P1 – describe the potential prompts that initiate the installation of new or upgraded software
M1 - explain the advantages and potential disadvantages of installation or upgrade of new software
D1 - justify a particular installation or upgrade
For P1 a paragraph or two describing the different prompts which have been looked at will meet this criterion – remember describe means give a detailed account.
For M1 a table comparing the advantages and disadvantages of installations and upgrades would help to meet this criterion. Explain means you need to give a reason for a point being an advantage or disadvantage
For D1 you need to apply the theory learnt in P1 and M1 to the situation given and give a good business case for or against the upgrade. Think about as many of the aspects covered in the unit so far and include them all within your recommendation.

12. Risks of Change Potential loss of service Incompatibility issues
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Risks of Change
Potential loss of service
Downtime – depends of what doing
Time to adapt to new software – training required
Incompatibility issues
Old application software not compatible with new OS
Drivers not compatible
Hardware not compatible
Old file formats not read by new software (unlikely as normally backwards compatible)

13. Risk Reduction Measures
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Risk Reduction Measures
Backups
Before you start make a backup of all data and software – can roll back if goes wrong – using imaging software is good
Install at low risk times
Overnight, weekends, annual shut down – downtime doesn’t matter as business not functioning - allows time to solve any problems without pressure,
Incremental install
Install on a few systems first then roll it out gradually across all. If problems do arise only a few computers are affects not entre system,
Test it first
Have a test environment which mimics the real system so can see the effects before changes are rolled out

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P2, D2 Evidence
This task requires you to expand the short report written for P1/M1/D1 which explains the rationale behind changing software.
P1 requires you to describe the potential risks of installing or upgrading software,
For the award of D2 you need to use evaluate the impact of each risk (is it worth the risk or not??) and explain how the effects of the risk could be minimised.

16. P2 – Describe the potential risks of installing or upgrading software.
2/5/2018
P2 – Describe the potential risks of installing or upgrading software.
D2 - Evaluate the risks involved in the installation or upgrade of
software and explain how the risks could be minimised.
P2 requires you to broadly consider what risks can occur rather than restricting the purpose to a particular system.
You can use the internet to research the risks of installing and upgrading software. To achieve P2 you only need to write a paragraph to identify and describe each risk.
D2 is likely to take the form of a written report – it needs to evaluate the risks and explain how to minimise their effects. Remember evaluate means give an opinion based on good and bad points whilst explain means give reasons