E. Douglas Jensen's

Real-Time for the Real World

 
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My personal manifesto about the widely misunderstood field of real-time computing...

"I don't understand why people are frightened of new ideas. It's the old ideas that frighten me."
-- John Cage


 

Introduction
About Me
Real-Time
Distributed Real-Time
Distrib. Real-Time Java
Real-Time Java
Real-Time CORBA
Real-Time Resources
Our Documents
 

Significant Changes RSS feed for this page

I make additions and revisions to this web site frequently -- check the Updated date at the bottom of any page. Most of the more significant ones are listed here.

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3/30/08 -5/xx/08
bulletAdded X newly accepted or published papers to the Our Documents page:

5/30/07
bulletAdded five newly accepted or published papers to the Our Documents page:

4/24/07
bulletAdded two newly accepted papers to the Our Documents page: Cho et al. 07; Wu et al. 07a

2/13/07
bulletAdded a new paper accepted for publication to the Our Documents page: Curley et al. 07
bulletAdded Schum's book The Evidential Foundations of Probabilistic Reasoning to my recommended books list on my real-time references page

10/4/06
bulletAdded Halpern's book Reasoning about Uncertainty to my recommended books list on my real-time references page

9/7/06
bulletAdded a new paper accepted (as revised) for publication to the Our Documents page: Wu et al. 06b
bulletAdded the paper version (from the Proceedings) of my invited presentation "The Distributed Real-Time Specification for Java: Status Report" at the 4th International Workshop on Java Technologies for Real-time and Embedded Systems, 2006 to the Our Documents page

9/03/06
bulletAdded a new paper (as submitted, awaiting minor revision) accepted for publication to the Our Documents page: Cho et al. 06e

8/20/06
bulletAdded four new papers published or accepted for publication to the Our Documents page: Cho et al. 06c; Na et al. 06; Curley et al. 06; Cho et al. 06d

4/17/06
bulletAdded a quotation from Albert Einstein to my time/utility function history page

3/19/06
bulletUpdated the Introduction and About Me pages
bullet(Belatedly) added eight new papers published or accepted for publication: Channakeshava et al. 06; Wu et al. 06a; Wu et al. 06; Cho et al. 06b; Li et al. 06a; Cho et al. 06a; Cho et al. 06; Channakeshava et al. 05

3/28/05
bulletAdded two new papers accepted for publication: Cho et al. 05; and Wu et al. 05a
bulletAdded a quote for traditional real-time practitioners and researchers by John Cage to my page header

2/16/05
bulletAdded three new papers accepted for publication: Li et al. 05; Li et al. 05a; and Ravindran et al. 05

11/18/04
bulletAdded Comments for three recently published papers [Wu et al. 04c][Wu et al. 04d][Wu et al. 05]
bulletChanged the extension for my RSS feeds to .xml, so unfortunately subscribers will have to update the URL

11/12/04
bulletAdded a new paper to the Our Documents page

11/7/04
bulletAdded a new conference paper to the Our Documents page
bulletCorrected errors made on 9/15

9/15/04
bulletAdded ten new conference papers to the Our Documents page

3/12/04
bulletAdded a preprint of my position paper for an ISORC 2004 panel session.

2/26,28/04
bulletUpdated the Introduction page.
bulletAdded an "Updated" date and time stamp to each page (in addition to the site "Updated" date that has always been at the bottom of each page)
bulletAdded a link for bookmarking each page.

2/14-15/04
bulletUpdated the Introduction to the Predictability page, and edited the rest of that page.

2/7,8/04
bulletAdded an RSS feed (what's that?) for this page.
bulletAdded an RSS feed for the Real-Time Resources page.
bullet(Our Documents page will be next.)

2/5/04
bulletAdded a preprint of a Virginia Tech/MITRE paper about the Tempus middleware.
bulletAdded a preprint of a Virginia Tech/MITRE paper about Joint Utility Functions.

1/19/04
bulletAdded a preprint of a MITRE/JPL paper introducing our collaboration on adding TUF/UA scheduling to the Mission Data System (see comment for it on Our Documents page).

12/21-27/03
bulletAdded an updated version of my paper in the Proc. of the IEEE Workshop on Object-Oriented Real-Time Dependable Systems 2003/Fall (October, 2003)
bulletImproved the Case Studies pages

11/20/03
bulletAdded my slides introducing the Real-Time CORBA 2 distributable thread programming model, from the seminar Developing Distributed Embedded Systems for Mission- Critical Applications, 11/20/02

10/19/03
bulletAdded a book by D'Agostini to my recommended books relevant to real-time computing
bulletNumerous edits to my recommended books relevant to real-time computing

10/1/03
bulletAdded the slides from my presentation at the Workshop on Object-Oriented Real-Time Dependable Systems/2003 Fall (Capri, October 1-3, 2003)

8/22/03
bulletUpdated the Introduction page

8/07/03
bulletUpdated the About MITRE page

7/29/03
bulletUpdated the Our Referenced Documents page, including Jensen 03a and Jensen 03b

7/20,25/03
bulletHelpful edits of the Predictability page

7/15/03
bulletNew invited presentation for the OMG's 2003 Workshop on Distributed Object Computing for Real-time and Embedded Systems, "The Evolution of Real-Time CORBA - the Good, the Bad, and the Ugly."

7/8/03
bulletNew 3-hour presentation for the Technical University of Dresden, based on a subset of this web site's content

6/25-26/03
bulletBegan the first drafts of the Worked Example (Coastal Air Defense, and AWACS Tracker), and Time/Utility Function History, pages

6/20-21/03
bulletRevised the Introduction page

6/18-20/03
bullet Added material about constant time/utility functions, and time/utility function terminal times, on the Time/Utility Functions and Sequencing pages

5/30/03
bullet New invited presentation at IEEE RTAS03 about time/utility functions and their applications

4/25/03
bulletPublished this web on a new host and ISP

4/15/03
bulletAdded EG3.com to my Search page
bulletNoted on my Search page that Google has recently been degraded by allowing a handful of narcissistic bloggers to hijack certain searches

4/13/03
bulletAdded a presentation summarizing some of this web site's material to the Our Documents page

3/4/03
bulletAdded a pertinent quotation by Dee Hock to the Real-Time page

2/15/03
bulletContinued updating the Predictability page

2/14/03
bulletAll pages under the topic of Real-Time changed to have their right hand column be an outline listing the sequence of pages on that topic
bulletRevised the Introduction, Real-Time and Real-Time Overview pages

2/7/03
bullet Updated presentation about the Distributed Real-Time Specification for Java

2/2/03
bullet Updated Our Documents (added Clark 90, Locke 86)

2/1/03
bullet Updates to Real-Time Resources (added Gillies book)

1/26/03
bullet Updates to Our Documents (added Jensen 85), Deadlines, and Time/Utility Functions 

1/21,26/03
bulletNew presentation summarizing some of the content of this web site: IE6 only; other browsers

1/11-17/03
bulletBegan a revision of the Predictability page

1/11/03
bulletUpdated the Introduction

1/1,5/03
bulletReorganized and updated the Sequencing material

11/24-26/02
bulletMajor revision to Time Constraints page
bulletAdded the reference to the first public document mentioning my concept of scheduling based on utility function time constraints

11/14/04
bulletWrote a new Real-Time Overview page

11/7/02
bulletRevised the Hard and Soft Real-Time page

10/13/02-11/02/02
bulletBegan writing and editing the Distributed Real-Time Computing page

10/10/02
bulletAdded downloadable PDF versions of each page
bulletAdded links to the new DARPA/IXO ARMS and PCES BAA's
bulletAdded link to Kahneman winning Nobel prize in economics

10/4/02
bulletAdded HTML versions (in addition to the downloadable PDF's) of the documents on the Referenced Documents page

9/29/02
bulletAdded a new Distributed Real-Time Specification for Java presentation

9/20-21/02
bulletUpdated the Search Links on my search page

9/10/02
bulletAdded the Guest Editors' Introduction to the Special Section on Asynchronous Distributed Real-Time Computers in the August 2002 issue of the IEEE Transactions on Computers to the Referenced Documents page

9/7-17/02
bulletBegan putting material on the Real-Time Resources page
bulletEdited most of the real-time pages, including some interesting new links on the Introduction page

3/31/02
bulletAdded the Referenced Documents page

2/22/02
bulletMajor update of the sequencing page
bulletWord-smithed the Real-Time Overview

2/10/02
bulletBegan uploading the time/utility function pages
bulletWord-smithed the Real-Time Overview, including adding a summary column

2/6/02
bulletUploaded two new public papers about one of the activities involved in writing the Distributed Real-Time Specification for Java

12/16/01 through 1/30/02
bulletVarious updates, see What's New on Introduction page

12/2/01
bulletNew web design released for preview

 
 

2/28/08: Due to unfortunate changes of circumstances at MITRE, together with some  difficulties getting time from the key programmers, I have had to terminate MITRE's work on the DRTSJ.

2/28/08: Unfortunate changes of circumstances at MITRE have weakened my collaboration with VA Tech. I will continue to work with them as best we can.

There is a complete redesign and reimplementation of my site under way, including a lot of new content. I hope to switch to it by mid-08.

 
 

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