A Computer Aided Software Engineering (CASE) tool for designing, generating and maintaining COBOL and PL/I application programs. Telon was developed by Pansophic Systems who were bought by Computer Associates in 1991, whereupon it was renamed CA-Telon.

It supports high-level, non-prodedural design and prototyping, combined with automatic code generation. There are mainframe and PC versions. The generated COBOL applications can execute in AIX, HP-UX, VSE, OS/400 for the AS/400, PC-DOS, or OS/2.