> For the complete documentation index, see [llms.txt](https://monobridge.gitbook.io/monobridge/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://monobridge.gitbook.io/monobridge/ecosystems-and-dapps/1.2-history-and-prospects-of-dapps/1.2.4-how-cross-chain-dapps-will-work-in-the-future.md).

# 1.2.4 How cross-chain Dapps will work in the future

The cross-chain business logic based on Multichain Cross-chain Router is realized by the call of contracts deployed on different chains through the cross-chain transfer of transaction messages. If we extend the transfer of transaction messages to cover more general and generic messages, we will be able to develop a new multi-chain-deployed Dapp with a cross-chain business logic between Blockchain A and Blockchain B, just like how we edit online documents simultaneously on Computer A and Computer B.

When the above is realized, more Dapps, including the existing Defi applications, will be reconstructed in a real multi-chain environment according to the new design idea. In so doing, they will gain new advantages and a competitive edge to be applied in more complex business scenarios. We call these new types of Dapps "Cross-chain Dapps", which have the following characteristics:

1. They need to be deployed and run on multiple chains at the same time;
2. Contracts on different chains are called through the generic cross-chain messaging protocol to realize unified multi-chain business logic;
3. Cross-chain Dapps enable the sharing of data, messages and business logic across chains, rather than within a particular chain;
4. They have other typical features of Dapps, such as autonomous running. Cross-chain swaps of assets enabled by the generic cross-chain messaging protocol are characterized by the exchange ratio between Token A and Token B being the same, whichever chain the exchange is initiated on, because the ratio is calculated based on the total liquidity of Token A and Token B on all chains.