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MultiValue Trilogy

MultiValue Trilogy

by Dawn M. Wolthuis
Copyright © 2002 Tincat Group, Inc.

About the MultiValue Triology

I. MultiValue OverView

II. MultiValue Data

III. MultiValue Commands


Some Other Fine Acronyms Cards

SOFACards were originally published as flash cards on two-sided business cards. They provide bite-size bullets of information for those desiring less than a full book's worth regarding information technology topics.

One side of each card has an industry word or acronym, with an explanation on the flip side. Only the flip side is presented in this web page slide show format.

Product names mentioned are trademarks of their respective holders

MultiValue Branches

R83, µData, and PI

These cards use the terms R83, µData, and PI to identify three not-entirely-distinct streams of development of the MultiValue platform. The MultiValue Family Tree diagram, available as a free pdf from store.tincat-group.com, provides a corresponding visual. These terms are used at times in the cards as shorthand identifiers for the three interwoven but separate branches of MultiValue.

In the late 70' s, the Pr1me Information (PI) stream started, emulating functionality roughly equivalent to Microdata's Reality 3.x product (µData), which was roughly equivalent to Pick® R77. After that (e.g. R83), the streams diverged. Pick historians indicate that R80 is the software version that was marketed as R83, but the marketing term serves our purposes in these cards none-the-less.

Terms related to MV data and commands are identified with the two primary flavors -- R83 and PI -- with µData typically aligned with the R83 camp.


Cross-reference of PI to R83 Terms

PI Relationship R83
@ID is item-id
field is attribute
record is item
I-desc has similarities to correlative
TRANS is similar to TFILE
PA is used in place of PROC
Command Prompt is TCL

MultiValue Trilogy Credits

Many people and web sites were consulted in the development of these cards. Special thanks to the following people whose help was invaluable and whose years of experience in the MultiValue world total over 80:

  • Dave Weaver for prompt responses of encouragement when I needed it and excellent proof-reading skills in both form and content.
  • Mark Pick for sharing stories and sending the thumbs up signals.
  • Jon Sisk for knowing so much and coming to my aid in the 11th hour, plus his detailed publications that aided my research.
  • Virginia VanAndel for "doing lunch" and passing along helpful intuitive reactions as well as knowledge from her vast experience.
MultiValue Commands SOFACards