ERC1155then the quickest way to understand these protocols would be to understand that
OEP8are correlated to them, respectively.
OEP4is a protocol that homogenizes assets. Any two assets are indistinguishable from each other, but it allows for multiple units of an asset.
OEP5is a protocol that allows for non-homogeneous assets that are distinguishable from each other. However, every asset exists as a unity.
OEP8can be understood as a protocol that is a combination of
OEP5. It allows for multiple kinds of assets and every asset can have multiple units. Thus, within the scope of the contract, similar assets are homogeneous in nature and have the same properties, while different assets are non-homogeneous and have different properties.