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System Test Plan Development
The System Test Plan (STPlan) is the key test document. It describes the approach to verifying all system
requirements. For each system requirement the STPlan allocates:
A test method (e.g., test, demonstrate, analysis, inspection).
The test phase (system qualification, site installation, operational test) verification will be
The test case (related requirements are grouped together into test cases).
Verification approach, i.e., an overview of how the requirement is planned to be verified.
In addition, the STPlan identifies by test case the personnel and equipment resources required, and the test
scenarios to be executed.
The contractor is responsible for developing the STPlan, which should be approved by the Procuring
Comprehensive system test plans should be prepared for each operational and functional requirement that
is to be verified by test. These plans should include schedules, manpower requirements and
facilities/equipment needed to accomplish each test.
The contractor should submit a Test Plan to the ISSA owner as called for in the submittals section of the
Specifications Package or no less than 30 days prior to commencement of acceptance testing and prior to
handover of the system, including handover at the time of “substantial completion” if this is provided in the
The contractor should perform pre-delivery testing, site testing, and fine-tuning of the completed system
and provide all personnel, equipment, instrumentation and supplies necessary to accomplish these tasks.
In some cases, especially where new systems or new integrations are proposed, the test plan should include
a comprehensive Factory Acceptance Test program (FAT) or System Qualification Testing (SQT) to verify
key aspects of the new system before substantive installation commences.
The contractor shall provide all personnel, equipment, instrumentation and supplies necessary to perform
The Test Plan should provide for sufficient quantitative testing and statistical data collection to give the
user reasonable confidence that the specified operational, functional and technical specifications have been
met and the full functionality of the ISSA has been demonstrated.
Installation (field test) testing is typically conducted at the time the ISSA provider certifies that the system
is installed and fully functional. Prior to this test, the provider shall deliver installation and ce rtification
documentation acceptable to the ISSA owner, and all training required prior to owner acceptance should be
completed. This allows the installer to conduct this test with the participation of owner and operations
representatives, to verify that all hardware and software is properly installed and functioning, that the
system is properly configured, that all system communications are functioning properly and that the system
meets all capability, capacity and performance requirements specified in the procurement contract.
System operational testing should be conducted after successful completion of the installation testing.
Owner representatives should operate the system for a defined period of time under normal operating
conditions and exercise all system functions. They verify that the performance and availability requirements
are met during the test period and that there have been no interruptions in service due to software or
If difficulties are encountered during any of the operational testing phases, the ISSA owner should be
empowered to stop the testing and require that the problems be resolved before continuing or repeating all
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