Friday, 29 August 2003
I was pointed to a new blog over at Corante called The Instant Messaging Industry
Insider written by Stowe Boyd, also of Timing. It is a brand new blog
and my attention was immediately drawn to the entry
Mo'time is a Jabber Powered online blogging tool. It features an
alerting system for new blog entries (from other blogs, but also your
own) that uses Jabber when the user is online, but has a Web-based digest
to catch new entries while the user is offline.
Doesn't that sound familiar?
Mimír is a system
exactly doing this. It came out of my wish to better organise my
information gathering back in October 2002. I didn't want to have to poll
a lot of sites, but get alerted when something new was there. But
Mimír is not limited to blogs, but can collect news from any kind
of news source. Check out its architecture.
The cool thing about Mimír is that you could have news sites
publish their news as it is created, not having to have aggregators poll
sites every now and than. This blog is an example of that. As I told
before, its storage format is XML. I have a small Python script that
extracts an item (usualy the most recent one) and publishes it to a
Mimír pubsub node. All of the subscribers to my blog get a
notification instantly when they are online, or have the item marked on
their news page for later reading.
Nice to see one of my ideas in another setting. I especially liked
the following quote by Howard Liptzin of Tipic, the company behind
It's a next-generation aggregation system.
Always good to know...
Sunday, 24 August 2003
Work, work, work.
Well, I've managed to bring back my backlog of e-mail and news to
manageable levels, although I still need to read through several Jabber
mailinglists. Working away the backlog has been a little more difficult
because I have spent a lot of time in my new
So far, we have been doing a lot of preparation work, helped out by
our parents and also my brother Menno. But painting has commenced and we
are really getting somewhere. One drawback is the ceiling. It turns out
the previous occupant applied chalk instead of latex and this has to be
removed. All of it. But that ought to be done by the apartments owner,
not by me. I hope to speak to them about it tomorrow.
Tomorrow I'll be at Philips again, working on my Masters' Project
for the next 3 months. There's still a lot to do, but I'll manage. But
that leaves only evenings and weekends for working in my apartment
and hopefully some free time as well. Probably not very much time
to hack on Jabber, unfortunately.
Expect light blogging.
Thursday, 21 August 2003
Home sweet home
We had a really great vacation. Very warm, but good. Now a lot of
mail awaits my attention and my Mimír news page has 1477
Also, there seems to be a router outage somewhere in the US my
provider peers with (maybe indirectly), so I can't reach a lot of
sites. I checked it via other networks, and the sites are perfectly
reachable from there. Hopefully it is better tomorrow.
But first: sleep!
Saturday, 9 August 2003
I'm going to spend my vacation on Mallorca, along with Irma, my
girlfriend. We should be flying at 05:00 and be back 20 August. Check out
The Map to see
where it is and what it looks like!
Monday, 4 August 2003
Saturday, 2 August 2003
Who are you anyway?
I forgot to blog about this yesterday, but also a cool event
asked me to do an
and of course I agreed. It even has a nice picture of me
behind my home desk. Have a good read!
We're just going to do it!
Yesterday, my girlfriend and me took a look at the apartment I
yesterday. It looks great! The optional wall that divided the
smallish living room and a bedroom has already been removed, so that
saves us a lot of work. Also, we can take over the carpeting and
rolling shutters which are in a very good state. As for the walls,
we need do a bit of painting and papering.
Anyway, we decided to take the apartment and finally have a
place of our own. I'm really excited about it!
Friday, 1 August 2003
More, more, more!
Triggered by my post to the standards-jig mailinglist,
has issued version 0.3 of the
User Moods JEP.
In this new version a few new moods have been added to the list of
possible mood values. Some of these moods (like
sick) are arguably really user
states. It seemed rediculous to make another JEP for those, also because
most user states directly invoke a mood.
Also, stpeter made me co-author of this JEP. Check out my Moods overview page for the cool
icons I assigned to the new moods.
Where did the content go?
Because I had so much to blog today, I put my new blog engine
in production in a hurry. I forgot to update the production site
with all necessary changes. Sorry about that.
As a side note, the notification sent out by
also the descriptions that will appear in the RSS files when I have
them ready, are just abstracts. The blog contains all the long-winded
Now fully XMLified
I've been thinking for a while about my blogging engine. It
used to work a lot like
.txt files. These files then have their first
line as a title and the rest as content, using HTML markup.
Somehow, I didn't like having to use HTML for my blog. It
is very presentational, really. For other documents, I use
DocBook XML to write
in. DocBook has the great property of being almost completely
presentation agnostic. You just say what is a chapter, a title or a
So, also inspired by the
I've created an XML format for the source documents of my blog, using
DocBook-like markup for all content. That way it can be rendered in
all kinds of formats, without having to deal with the quirks of
The work is not complete, as for example the RSS feed is not
yet done, but the HTML rendering, with archive, should work now. Also
I've created a little tool to publish each new item to my
node. The only subscriber so far is Mimír.
Leaving the birds' nest.
The best news arrived on wednesday and is of course the fact that
Irma (my girlfriend) and I have been drawn as #1 candidate for an
apartment in Veldhoven, a suburb of Eindhoven. Whohoo! We have been
wanting a place of our own for a while now, and this time been lucky in
the housing lottery.
For a hardcore Eindhoven guy this is almost betrayal, but then
again, Veldhoven is a part of Eindhoven really, they're just still in
For those familiar in the area: the address is Nijverheidslaan
99, in 't Look. The apartment has a large livingroom (32 m^2, after we
have taken down a wall) and two bedrooms, a kitchen, a bathroom and
separate toilet. It is located on the fourth floor (3e verdieping), on
the corner of the building and we have two balconies and a small side
window. A small Albert Heijn (supermarket) is nearby.
Tonight, we will be taking a first look on the inside, but
the housing organisation had rated it
well taken care
of, and that is a qualification they apparently rarely
give. My girlfriend already took a look on the outside, and
it all seems pretty nice.
If all is well, we will receive the keys on 29 August, and move
in late September. We will probably be ordering most of hour
furniture this weekend, because delivery times are somewhere
between 10 and 12 weeks.
Last monday I talked with
about another kind of extended presence. We formalised this in the
Moods JEP. User Moods tell what a user is doing at that
moment in time. This can range from
having coffee to
on vacation. There are three pieces of information here:
a general activity, a more specific activity and a natural language
I think people can more effectively
communicate with each other when they know what the other person is
doing. Sure, you can use away messages (as part of presence) for that,
but having it formalised with fixed values, you can have clients
that do something with it. This is easier that scanning natural
A way of presenting this information to the user is using icons.
For example, you can have a cartoon character (like a smiley face)
and attire that with items. If you are on the phone, the client
of all subscribers to your user activity, can display a phone with
the cartoon. If you are busy with working, you can give it a builder's
hat. And so on.
Other things you could do is use the activity to have the
client warn you when you start typing a chat message to someone. If
I am in a meeting, it will probably not read your message for a
Setting your current activity might be tedious. A client
should try and present extended presences together when you want
to change one of them. If you are going to
you'll obviously be
away, so your presence can be
altered, too. Keyboard shortcuts can come in handy here.
If your client has access to your calender (like with the
project, it can also set user activities for you. If you have an
appointment scheduled, your client can set your activity to
having_appointment. If you have a scheduled
holiday, the client can show that, too. Note that you do not
necessarily have to be online yourself (presence) to set your
activity. Maybe your client can also detect when you are on the
The JEP still needs a bit of work. We have to clean up the
possible values a bit, and I also want to have a way to communicate
how long the current activity is going to last. Stay tuned.
When things get formalised.
I've been expirimenting with
for a while now, as you can see throughout this site. I took moods
as my first application on top of
get a feel of how that could work.
Moods are how people feel. It is something belonging to you
and can be seen as an extended kind of presence. There are more
things that fall in this category like location and user activity.
published a new JEP
Moods. It was a first draft on how you could communicate
The JEP used the
element to transport the moods. As I am a firm believer in pubsub
for these kinds of information, I
to use that instead. Furthermore, the JEP contains a list of possible
mood values, taken from research on this subject. But there was no
natural language field to augment such basic mood information, like
in my home-grown protocol. So that's in there now, too.
It is also possible to send your mood in one-on-one chats, inside
<message/> element, which I think is
a very nice touch.
Anyway, I've worked on moods last week and updated my site and
tools to use the new JEP, and it works great. Because the JEP proposed
a fixed set of mood values, I had to get a lot of new icons for them,
too. Checkout the Mood Overview
Page for more information.
What was it like?
What a week. This week had a lot of things happening, but I
didn't take the time to blog on them. I'll try to do that a bit better
in the future. Blogging as it happens, so to speak. I will cover
the events in separate entries.