DO-297 contains guidance for Integrated Modular Avionics (IMA)
developers, application developers, integrators, certification
applicants, and those involved in the approval and continued
airworthiness of IMA systems in civil certification projects.
It is focused on IMA-specific aspects of design assurance.

IMA is described as a shared set of flexible, reusable, and
interoperable hardware and software resources that, when
integrated, form a platform that provides services, designed
and verified to a defined set of requirements, to host
applications performing aircraft functions. The primary
industry-accepted guidance for satisfying airworthiness
requirements for IMA components is included and it describes
application properties as they relate to their integration
with a platform.