Within IEEE Std. 12207-2008 is a description of the Software Development Life Cycle. Important for my purposes are the standards that derive from this regarding documentation. What I'm looking for is an IEEE (or ISO/IEC/IEEE) standard which describes documentation requirements for a Software Development Plan (SDP).
I'm not sure if one exists. The best I can find is ISO/IEC/IEEE 15289-2015 which describes the numerous document types in section 10 (including an SDP) and IEEE 24748-5 for software development planning, which is in draft form.
I'm coming at this from a viewpoint of MIL-STD-498 which has a clearly defined SDP (DI-IPSC-81427) and looking for an IEEE 12207 derived alternative. If one does not exist, does IEEE 12207 specify how to create documentation in cases where that standard (or related) do not specify?
If this is not on topic for this stack exchange, please let me know.