Integrated Subsystem Testing Review (ISTR)


The Integrated Subsystem Testing Review (ISTR) is an interim review designed to summarize the results of full system integration and testing. Integration of subsystems almost never goes as well as planned, so it is important to start integration and perform fit checks early to mitigate issues well in advance of delivery. Pending successful integration, testing of connected subsystems ensures that steps are being made in the direction of a full mission simulation. If interfaces or communication between subsystems fails at this point in the project, there is still time to resolve these issues.   You will present the results of your integration and the plan to integrate your canister, which is particularly important for teams sharing canisters.  All reports shall be submitted to This email address is being protected from spambots. You need JavaScript enabled to view it. no later than 24 hours before you discussed presentation teleconference time.

Your presentation should focus on the following elements:

  1. Brief Payload Overview (for completeness)
  2. Interfaces and how well (or poorly) subsystems connected together into the full system
  3. LOTS of pictures of the integrated subsystems
  4. Descriptions of tests completed and a summary of the results
  5. Conclusions: What actions items came out of the integration and testing?


ISTR Template







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