> For the complete documentation index, see [llms.txt](https://real-world-assets-docs.gitbook.io/the-ledger-digital-asset-protocol/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://real-world-assets-docs.gitbook.io/the-ledger-digital-asset-protocol/technical/protocol-mechanics.md).

# Protocol Mechanics

The LDAP operates with a variety of roles and features, each with its own unique functions and controls. These specifications define the protocol's operations and usability.

## Role Definitions

**DEFAULT\_ADMIN\_ROLE:**  The DEFAULT\_ADMIN\_ROLE has the authority to grant or revoke all other roles. It is advised that this role be assigned to a secure multi-signature wallet for additional security and not used for anything other than managing other roles.

**ADMIN:** The ADMIN role has broad control over the contract, including the ability to issue and burn NFTs, and manage settings.

**HANDLER:** The HANDLER role can be assigned to a separate contract, adding additional logic to the minting process. This role exclusively controls the minting of new NFTs.

**WHITELISTER:** The WHITELISTER role is solely responsible for adding users to the whitelist, providing an extra level of security.

**USER:** A USER has no special privileges unless the whitelist is enabled. If the whitelist is enabled, the user must be on the whitelist to perform any action besides holding the NFT.