Boundary constraint refers to limits placed on the operations or transactions within a blockchain network. These constraints ensure that certain rules are upheld, preventing invalid or harmful transactions from being executed.For example, boundary constraints can dictate the maximum amount of tokens that can be transferred in a single transaction or define conditions under which transactions can be processed. They help maintain network security by reducing the potential for fraud, manipulation, or overload.Additionally, boundary constraints assist in resource management. By regulating how and when resources are accessed, they ensure that the network remains efficient and responsive. Overall, boundary constraints play a crucial role in maintaining order, security, and efficiency within a blockchain environment.