                      May 1999  C       Thank you for purchasing the DEC Ada Version 3.5 Professional E       Development Option (PDO), which includes the following features        and capabilities:          o  Smart recompilation  C          Can significantly reduce the number of recompilations that B          are needed to rebuild your program after some compilationA          units change. Smart recompilation allows the compiler to F          propagate changes quickly through a system, eliminating up to*          100% of the usual recompilations.  +       o  Program library file-block caching   C          Minimizes the actual amount of disk input-output that must E          be performed by using an in-memory cache of file blocks from E          files in the Ada library. As a result of file-block caching, D          the elapsed time for compilations is significantly reduced.  7       o  Multilevel program library directory structure   C          Provides a more efficient program library directory struc- C          ture to improve the performance of access to large program           libraries.   C       All of the features and capabilities are designed so that you B       do not need to change your current development procedures orE       source code when you enable the PDO. You can use your currently ?       existing programs without any special linkers or loaders.   C       For additional information about the DEC Ada Version 3.5 Pro- B       fessional Development Option, see Developing Ada Programs on       OpenVMS Systems.  (                                     NOTE  @          Compaq Ada was formerly known as DEC Ada. References toB          DEC Ada in product components should be construed as ref-          erences to Compaq Ada.   E       There are three kinds of licenses for the Professional Develop-        ment Option:  B       o  Unlimited License-Allocates license units on an unlimited          system use basis   D       o  Personal Use License-Lets one identified individual use the          layered product  F       o  Concurrent Use License-Lets any one process at a time use the          layered product  ?       Follow these steps when you are ready to install the PDO:   E       1. First install DEC Ada, using the License Management Facility @          (LMF) to register the License Product Authorization Key@          (License PAK) for DEC Ada Version 3.5 for OpenVMS AlphaB          Systems. The DEC Ada Version 3.5 Professional Development                 A          Option software is a separately licensed part of the kit           containing DEC Ada.  D       2. Use LMF to register the License PAK for the DEC Ada VersionE          3.5 Professional Development Option. The License PAK for the C          PDO is shipped with the DEC Ada kit if you ordered DEC Ada E          and the Professional Development Option together. Otherwise, E          it is shipped separately to a location based on your license           order.   E       See the OpenVMS License Management Utility Manual for registra-        tion instructions.         Documentation   D       Complete documentation of the DEC Ada Version 3.5 ProfessionalB       Development Option appears in Chapter 5 and in Appendix A ofC       Developing Ada Programs on OpenVMS Systems (order number: AA-        PWGYA-TK).         DIGITAL Services  A       A variety of service and support options are available from E       DIGITAL. For more information, contact your local DIGITAL sales 
       office.                                                             '                                       2 