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Asper School of Business University of Manitoba. Systems Analysis & Design. Instructor: Bob Travica. System implementation and deployment. Updated: November 2014. Outline. System implementation System testing Software versioning System deployment Data porting and conversion - PowerPoint PPT Presentation
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Asper School of Business University of Manitoba
Systems Analysis & Design
Instructor: Bob Travica
System implementation and deployment
Updated: November 2014
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Outline
System implementation System testing Software versioning System deployment Data porting and conversion System deployment strategies
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Implementation and deployment
activities
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Implementation Implementation = software
development or assembling according to previously created design.
Modularized design (objects and packages; components) – interaction among system components must be implemented using certain standard (SOAP/XML, CORBA, COM)
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Testing Testing = a process of identifying system
defects
Develop test cases and test data A test case specifies starting & ending
state, and events to which the software must respond
Test data – data in the defined starting state, which must reach a defined ending state after being exposed to certain event (input).
Modern approach: build to predefined test (Agile Methodology)
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Kinds of system tests
Unit testing - individual methods, classes, or components before they are integrated with other software
Defect example: A method for calculating taxes outputs incorrect results.
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Kinds of system tests (cont.)
Integration testing - evaluates the behavior of a group of methods or classes (interface compatibility, unexpected parameter values or state interaction, run-time exceptions)
Applied to system or sub-system
Defect example: Results of retrieving a record significantly differ when real database as opposed to dummy database is retrieved
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Kinds of system tests (cont.)
Usability testing – software works but fails some of the usability requirements (easy to learn, use & navigate, task efficiency)
Acceptance testing – involves users to determine if system in overall fulfills user requirements
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Programmers Unit testing Testing buddies can test other’s
programmer’s code Quality assurance personnel
Integration and Usability Users
Acceptance testing Volunteers for testing beta version of
software
Who Tests Software
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Versioning Alpha version
Test version that is incomplete but ready for some level of testing; dummy data used
Beta version Test version that is stable enough to be
tested by end users for an extended period of time; real data used
Production version System version that is formally released
to users or made operational for long-term use
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System deployment
Activities to make a new system operational
Includes: Installation and configuration User training Porting and Converting data Deployment strategy
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Data porting & converting
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Deployment strategy
Direct deployment
Parallel deployment
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Deployment strategy
Phased deployment