A combination of two things (usually companies) into one.
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SaaS
Software as a Service. The client uses servers supplied by the software manufacturers
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What are the 4 types of installation?
Direct, Parallel, Pilot, Phased
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Direct Installation
The old system is stopped and a new one is started.
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Parallel Installation
The new system is started and run alongside the old system.
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Pilot Installation
The new system is tested (piloted) in a small part of a company. Once it is running correctly, the new system is implemented across the whole company.
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Phased Installation
The new system is introduced in phases (section by section)
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Potential problems with data migration
Incompatible file formats, data structure differences, validation rules, incomplete data transfers, international date/currency/character differences.
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Alpha testing
The developers test the system.
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Beta testing
The users test the system
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White Box Testing
Tracing an algorithm
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Black Box Testing
Inputting data and comparing with the expected outcome.
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Debugging
The use of automatic debuggers to identify bugs in the program.
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User Documentation Contents
System requirements, installation guide, how to start the system, how to use system features, example I/O, Troubleshooting, and developer contact info.
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The 3 types of user documentation
Help files, Online support, Printed manuals.
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Help Files
Files supplied with the system for support
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Online Support
A developer-hosted web service for support with a system
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