6.- Maintainability

Maintainability refers to the ease with which a product can be maintained in order to isolate and correct defects or their cause, repair or replace faulty or worn-out components without having to replace still working parts, prevent unexpected breakdowns, maximize a product’s useful life, maximize efficiency, reliability, and safety, meet new requirements, make future maintenance easier, or cope with a changed environment.

Indicators of Maintainability

It follows a list of possible maintainability indicators for a software-defined GNSS receiver:

  • Time to Fix Defects.
  • Source code under a version control system.
  • Well–established programming language.
  • Automated build environments.
  • Availability of an issue tracking system.
  • Availability of “debugging modes” and tools.
  • Availability of static and dynamic code analysis tools.
  • Definition of a source tree structure.
  • Automated documentation system.
  • Availability and observance of a coding style guide.
  • Availability of required and optional software dependencies (type of license, pricing, maintenance / development status).

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