When user charts are displayed on an ECDIS, what is their status in relation to ENC?

When user charts are displayed on an ECDIS, what is their status in relation to ENC?

• A. They become part of the ENC
• B. They are deleted from the ENC
• C. They are independent of the ENC
• D. They modify the ENC permanently

Answer: (C)

When user charts are displayed on an ECDIS, they are classified as independent of the ENC (Electronic Navigational Chart). This means that while they can be viewed alongside the official ENC data, user charts do not alter or become integrated into the official ENC dataset. The ENC remains the authoritative source for navigational information, and any user-generated data or overlays are separate entities that provide additional context or personal navigation assistance on the ECDIS. Therefore, the integrity and reliability of the ENC is maintained, as user charts are merely supplementary and do not have any permanent effect on the official navigational data.

When user charts are displayed on an ECDIS, they are classified as independent of the ENC (Electronic Navigational Chart). This means that while they can be viewed alongside the official ENC data, user charts do not alter or become integrated into the official ENC dataset. The ENC remains the authoritative source for navigational information, and any user-generated data or overlays are separate entities that provide additional context or personal navigation assistance on the ECDIS. Therefore, the integrity and reliability of the ENC is maintained, as user charts are merely supplementary and do not have any permanent effect on the official navigational data.