What term is used for the plan on maintaining an organization's assets and resources?

The term that best describes the plan on maintaining an organization's assets and resources is often referred to as an "Asset management" plan. Asset management involves a systematic approach to managing and maintaining an organization's assets—ensuring that they are properly taken care of to maximize their value and utility throughout their lifespan. This includes planning for regular maintenance, assessments, and upgrades or replacements as necessary.

While "Maintenance plan" could refer specifically to the procedures and actions carried out to keep assets functioning, it does not encompass the broader strategic considerations that asset management entails, such as financial analysis, risk management, and overall asset lifecycle management.

Additionally, "Resource allocation" focuses more on the distribution of available resources rather than the long-term maintenance and management strategies for assets. "Management strategy" is a wider term that could apply to overall organizational tactics but does not specifically address the maintenance of assets and resources.

Thus, asset management captures the essence of planning around the upkeep and functionality of an organization's assets.