The document discusses the importance of testing in IT projects, emphasizing that it accounts for 30-40% of development costs. It outlines various testing types and their costs, highlighting the financial implications of not performing tests, such as increased support cases and potential business losses. The document also stresses the need for improved documentation practices in relation to testing.

1. SAP PI Testing
Business case

2. Why testing is important?
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3. 35% of development cost is testing
• Multiply studies prove that testing account for 30-40% of
development cost in general IT projects.
• My guess for integration it is probably in the line.
• Bug fixing even more

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• Developer test
• Get test data
• Unit test
• User acceptance test
• Automated test
• Test manager and coordinator
• Test documentation
• Most important takes business time
What costs with the testing

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Hourly cost 80
Number of ico 200
Changes pr year 300
Number of support packs pr year 2
Assumptions

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Time
required pr
instance
Number of
ICOs Hours Price Pr year Cost pr year
Normal PI testing
Test an interface when changing
mapping 120 1 2 160 300 48.000
Support packs installations testing 60 200 200 16000 2 32.000
Total 80.000
Testing price

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Time
pr instance
Number of
ICOs Hours Price Pr year Cost pr year
Normal PI testing
Test an interface when changing
mapping 120 1 2 160 300 48.000
Support packs installations testing 60 200 200 16000 2 32.000
Total 80.000
Testing with IRT
IRT server 15.000
IRT installation and configuration 5.000
IRT create test cases 10 200 33 2667 1 2.667
Test an interface when changing
mapping 5 1 0 7 300 2.000
Support packs installations testing 10 800 2 1.600
Total with IRT 24.667
IRT testing

8. If we do not test
• Could be a bomb
• Failure in your business
• Impact relationship with
partners
• Legal
• Cost money
• Support
• Fix problem again
• Change management
• Lost time with business
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Cost of not testing
Price Pr year Cost pr. year
Support cases 320 30 9.600
Rollback and start over 20.000 0,3 6.000
Lost business because
of errors
20.000 1 20.000
System down 100.000 0,5 50.000
Total for errors 85.600

10. Can we optimize
documentation

11. Documentation
• Documentation is important
• Most document too little or too
much
• Need to document all changes
much better
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Documentation
Time required
pr instance
Price Pr year Cost pr. year
Normal
Documentation
90 120 300 36.000
IRT DevOps
additional
10.000
IRT
Documentation
15 20 300 6.000
Total with IRT
documentation
16.000

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