Adj. [from mathematics] Mutually independent; well separated; sometimes, irrelevant to. Used in a generalization of its mathematical meaning to describe sets of primitives or capabilities that, like a vector basis in geometry, span the entire `capability space' of the system and are in some sense non-overlapping or mutually independent. For example, in architectures such as the PDP-11 or VAX where all or nearly all registers can be used interchangeably in any role with respect to any instruction, the register set is said to be orthogonal.
Ah, the PDP-11 or VAX, such memories of room-sized computers with monstorous gigabyte hard drives.  Anyway.

I used the word "orthogonal" today to describe the "innovation pack" planned for Lotus Notes and Domino in mid-2006.  This is the set of capabilites including a blog template, RSS feeds, and Notes on a USB key that were announced at Lotusphere.  They're "orthogonal" because they are not a 7.1 or 7.5 release...in fact, no core code is disturbed at all.  This is critical to those organizations who have testing requirements in order to deploy a "new" piece of software.  The "innovation pack" is separate from the core Notes/Domino codestream.   Apparently, the "orthogonal" nature of this deliverable taught several people in the room a new SAT word.

Other notes from today's Lotusphere Comes to You in Chicago:
- About 120 customers and partners attended.  Speakers included Kevin Cavanaugh, Rob Ingram, David Marshak (demonstrating Sametime 7.5 live!), and Joe Linehan.
- In my session on Notes/Domino directions, all of the attendees were on ND6.x or 7.  A number of Linux and iSeries customers represented, as well as some pSeries and Solaris.  Oh yeah, there were Windows users, too.
- Today was my first visit to the IBM offices at 71 S. Wacker, Chicago.  This is the address that has been on my business card since August, but until today, I had never been there.  Nice place, very sleek.  The A/V equipment is first rate (except the wireless microphone setup).  But now I can no longer point out that as a telecommuter, I've never been to my own office.  Though I still didn't go looking for where my snail mail is stored.

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