Final answer:
The two types of NCO self-development programs are structured and non-structured self-development, designed to enhance military career progression and complement formal training.
Step-by-step explanation:
The Noncommissioned Officer (NCO) self-development programs are designed to enhance and supplement formal training and professional military education, with a focus on the individual's responsibility for their own career progression. The two types of NCO self-development programs are structured and non-structured self-development. Structured self-development is designed to be progressive and sequential, following a set curriculum that compliments the training received during professional military education. On the other hand, non-structured self-development is more flexible, allowing individuals to explore professional development options and learn about the certification process for a particular field in a manner that's personally tailored to their career goals and unit requirements.