In the transferToProgram element of the linkage options part, the alias property specifies the runtime name of the program that is identified in the toPgm property.
The value of this property must match the alias (if any) you specified when declaring the program to which you are transferring. If you did not specify an alias when declaring that program, either set the alias property to the name of the program part or do not set the property at all.
If the name of a called non-EGL program is an EGL reserved word, you must specify the name of the program in the transfer to program statement using a word that is not a reserved word and use the alias attribute to specify the actual name of the called program.