LLMResponse MA.L2-3.7.2.b

I'll help you determine the most effective approach for collecting evidence and evaluating assessment objective "[b] techniques used to conduct system maintenance are controlled" in practice MA.L2-3.7.2.

Ranking Evidence Types for Assessment Objective [b]

Based on the CMMC Assessment Guide and the assessment objects you provided, I would rank the evidence types for this objective as follows:

1. **Documents** - Most valuable because they establish the framework for controlling maintenance techniques:

  - System maintenance policy that defines approved techniques
  - Procedures addressing system maintenance techniques
  - Maintenance process documentation
  - Change management documentation for maintenance activities
  - Standard operating procedures for maintenance techniques

2. **Artifacts** - Second most valuable as they demonstrate implementation:

  - Maintenance records showing approved techniques were followed
  - Change control records for maintenance activities
  - Approved maintenance technique documentation
  - Maintenance logs showing adherence to defined techniques

3. **Screen Share** - Third most valuable:

  - Demonstration of how maintenance techniques are documented and followed
  - Real-time observation of maintenance workflow processes
  - Verification of how maintenance techniques are approved and controlled

4. **Physical Review** - Fourth most valuable:

  - Observation of maintenance procedures being performed
  - Review of physical documentation used during maintenance
  - On-site verification of adherence to documented techniques

Prioritizing Assessment Approaches

For assessment objective [b], I recommend prioritizing the assessment approaches in this order:

1. **Examine** - Highest priority as it establishes the control framework:

  - Review maintenance technique documentation
  - Examine procedures addressing system maintenance techniques
  - Review change management processes for maintenance
  - Verify documentation of standard techniques and deviations

2. **Interview** - Second priority to validate understanding and implementation:

  - Interview maintenance personnel about approved techniques
  - Discuss with security personnel how techniques are controlled
  - Verify personnel understand which techniques are approved/prohibited
  - Confirm awareness of documentation requirements for maintenance

3. **Test** - Third priority to verify controls function as intended:

  - Observe application of controlled maintenance techniques
  - Verify approval processes for non-standard maintenance techniques
  - Test change management processes for maintenance activities
  - Verify documentation of maintenance techniques used

This approach allows you to first establish what controls exist for maintenance techniques through documentation (Examine), then confirm personnel understanding and adherence (Interview), and finally verify the controls operate effectively in practice (Test). This addresses the CMMC requirement to control maintenance techniques to prevent inadvertent damage or security issues.