VA is difficult because experience and age change with time and require calculations. (Kimball, 1997)Īccording to Kimball, even well-designed data marts are not suited to this type of analysis, and he knows of “no application development or decision-support environment that handles this kind of application automatically” (1997). You may want to ask what is the average time until these customers have a credit default (if they do). You want to measure their purchases and their payments as a function of the time after the granting of credit. Once this triggering event occurs, you want to study the behavior of this cohort group. When discussing “Time Issues” in data mart design, Kimball (1997) highlights it as an advanced application need that is “seen repeatedly in data warehouse environments.” As a case in point, Kimball describes the need to analyze all customers who had their credit limit raised to $1,000: Vintage Analytics (VA) is a useful but challenging technique. While each domain may use a different name, let us define Vintage Analytics as the analysis of how age and experience influence performance. While empirical evidence (Weil, 2011) casts doubts about the reliability of wine charts, the same approach of tracking performance by age and origination date has proven valuable for other domains such as credit risk (Siarka, 2011) and healthcare (Collett, 2003). The display's contrast is adjustable.Vintage charts have long been used to select wines, and to consume them at their optimal age. The one with the blank screen is brand new, just out of the plastic slip. I have taken high resolution scans of the UC-2301 circuit board:
Vintage datagraph software#
Screenshots of the Time Trax II software are available here. If you buy one and figure out anything interesting, let me know.Ī few sample screen picts:Watch: The watch's interface looks like it has to be pretty simplistic and I'm lookin for ways to get it working with other systems.
Vintage datagraph serial#
A IIc version of the UC-2301 was avaiable and the Time Trax software allows the user to choose whether the game or serial port is used. If this is so, getting the watch to work with the IIc is likely just a matter of rewiring the cable. I believe CPU sold the same box, without the watch interface, to Applied Engineering as the IIc System Clock. The interface was made by Creative Peripherals Unlimited. The Time Trax software is ProDOS based, not copy protected and has no difficulty with hard drives. The II+ will likely be compatible, though I have not yet tried it. The IIgs must be set to "Normal" speed in the Control Panel. I have successfully used Time Trax II and the Datagraph with both the IIe and IIgs. The watch itself doesn't take the year into account at all, so the issue is only with the Time Trax software. Right now just use the year 1974 instead of 2002 - the days match. Years after 1999 are not supported by Time Trax, though I'm looking for a work-around. The UC-2001 can store two memos of 1K each, a schedule of 2K, or one memo and one schedule of variable sizes. In the Time Trax software, simply choose a Memo Pad, enter the text you want to store, then transmit it to the watch. Likewise, plain text can be stored on the watch in the "memo pad". The appointments are stored on the watch as plain scrollable text. Starting with the current day (unless you specify otherwise) the watch will transfer all appointments from that day forward until the watch's memory is full. into Time Trax, then synchronizes with the watch. The user enters all his appointments, etc. The Apple II software that controls it, Time Trax II can also serve as a stand-alone scheduling program. The UC-2301, in turn, communicates with the Apple II via the game port (internal).
It communicats with the UC-2301 interface via a wireless connection. The Datagraph has 2K of memory, usable for storage of text.
At $500, it doesn't appear sales were brisk, but the coolness factor remains. The Seiko Datagraph UC-2001 was marketed in 1985 as a PDA-on-the wrist.
Michael Rothe has designed a serial interface and is working on software to allow the Datagraph to work with modern computers.
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