When an Ispec is generated and deployed to the host, each corresponding source file contains an identifier which is unique to that Ispec.

The same unique identifier is contained in the IspecModel class files generated for the Ispec.

When the host system sends an Ispec response to the Component Enabler client it contains the unique identifier for that Ispec. The client checks that the identifier for the local version is the same as that specified by the host system.

If the identifiers are the same, the processing continues.

If the identifiers are found to be different, the client requests the latest version of the IspecModel class file from the Web server. The client compares the version identifier of the file on the Web server with the host identifier.

It is the responsibility of the Web administrator to ensure that the client components on the Web server are up to date and synchronized with the generated host system files. If the IspecModel class file on the Web server is not up to date, an error message is given when the client requests the latest file.