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Upward and Downward Compatibility Between Non-Compatible Profiles

IP.com Disclosure Number: IPCOM000060013D
Original Publication Date: 1986-Feb-01
Included in the Prior Art Database: 2005-Mar-08
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Bracht, CJ: AUTHOR

Abstract

A method is described which allows a profile created on one system to be used on the next version of this system with a different profile compatibility level. On DisplayWrite 3, Ver. 1.0 and 1.1 systems, users have the capability to create and use multiple user profiles. These profiles have the Work Station and Application defaults used by the system to format and process input and output data. If a new function is added to the next version of DW3, new profile defaults would be needed that are not supported on the DW3 version 1.0 release. The new method allows the use of version 1.0 profiles on the next version without having to recreate the profiles. Also, new profiles created by the next version of DW3 can be used on DW3 version 1.0 according to this new method. Every time a 1.

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Upward and Downward Compatibility Between Non-Compatible Profiles

A method is described which allows a profile created on one system to be used on the next version of this system with a different profile compatibility level. On DisplayWrite 3, Ver. 1.0 and 1.1 systems, users have the capability to create and use multiple user profiles. These profiles have the Work Station and Application defaults used by the system to format and process input and output data. If a new function is added to the next version of DW3, new profile defaults would be needed that are not supported on the DW3 version 1.0 release. The new method allows the use of version 1.0 profiles on the next version without having to recreate the profiles. Also, new profiles created by the next version of DW3 can be used on DW3 version 1.0 according to this new method. Every time a 1.0 profile is Initialized at IPL time or Activated during profile tasks on the new version, the profile will be read from media into RAM (random-access memory) and then the default for any new functions will be copied into the RAM profile. Thus, when the new functions access areas that would be "garbage" areas on
1.0 profiles, there is valid data to use. The default values only occur in the RAM profile since the data is not written back to media during Initialize or Activate. To get the values written back to media, the profiles must be Revised during profile tasks. The same procedure is used with Revision of a 1.0 profile a...