Supplement to ACATR EDS20001201RSC07

November 5, 2001

Rational Software Corporation (the client) hereby requests that the Ada Conformity Assessment Authority (ACAA) extend the certified status documented in the above-referenced Ada Conformity Assessment Test Report (ACATR) and in Ada Conformity Assessment Certificate (ACAC) A010516E2.4-007 to the implementation class(es) described in the following pages.

Technical Contact:

David J. Lofgren
Rational Software Corporation
18880 Homestead Road
Cupertino, CA 95014

Approval: ______________________________    ________________
                     Ada Conformity Assessment Authority     Date


Implementation Class Information


Implementation Class Category:  Base

Processor Identification:  Rational Apex Embedded Ada 95/83, Sun Sparc Solaris to to PowerPC family for LynxOS, version 4.0.0b

Host Systems:  Sun SPARC under Solaris 2.6, 2.7, or 2.8

Target Systems:  All PowerPC processors with HW floating point under LynxOS 3.1.0a

Representative Processor and Configuration Tested:

Host System:  Sun Ultra 60 under Solaris 2.6

Target System:  Motorola Powerstack (PowerPC 603) under LynxOS 3.1.0a

ACATS Version Used for Testing Representative Processor:ACATS 2.4 (VCS label A2_4B)


_________________________   ________________
David J. Lofgren                  Date
Rational Software Corporation