Edge (DAPP Service Providers) nodes that provide DAPP Network related services and functions to consumers
"Edge computing is a distributed computing paradigm that brings computation and data storage closer to the location where it is needed to improve response times and save bandwidth." Wikipedia
In the case of DAPP Service providers, the EdgeDSP technology lowers the barrier to entry for providing DAPP Network services while also expanding the use cases primarily due to the lower amount of resources needed to provide services.
EdgeDSPs do not remove the need for full DAPP Service Providers. Full DSPs provide access to other blockchain nodes such as ETH/EOSIO which is a resource intense endeavor.