Color Workshop at the Oracle Maker Faire

Workshop preparations

For the last 6 years, each Friday, I have been bringing a mobile painting studio to my kids’ school. Among other things, we work on what I call “color studies” – a set of formal exercises aimed to sharpen one’s sense of color and develop painting skill, just like musical scales, chords and arrpedgios sharpen one’s sense of harmony and develop performance skills. I was originally inspired to offer such level of formalism (more...)

Pac-Man on a String

Oracle hosted the first-ever company co-sponsored Maker Faire event on November 17, 2016.

When I heard of the event, I had something in my mind that I would encourage a group of middle-schoolers to make a game for the event. I have been teaching them occasionally on Arduino, NodeMCU and MQTT concept over some weekends, and this is the perfect opportunity to put them together in a build.

After some brain-storming, we came up with (more...)

Note to myself: when handling large payloads

Today I stumbled on a question in the communities about handling large payloads in BPEL/XSLT. Although I know that SOASuite from 11g onwards can do paging of XML to disk, I never had the need. However, you could need it from time to time. And it's good to know how to do it.

It's noted on My Oracle Support with Doc ID 1327970.1. Which refers to the 11g documentation on Managing Large Documents and (more...)

Running Watches and Starting Line Rituals in the Wild

Just back from completing my 3rd Florence Marathon (Firenze Marathon or Maratona di Firenze if you prefer). A great run around a fantastic city. I really enjoyed it and my finish time wasn’t too bad for my little legs.

While in Florence I noticed some great, localized Asics billboards for the event and they reminded me of how personal technology drives the adoption of what might seem to be “curious rituals” of behaviour, be it (more...)

Trip to Black (W)holes

imagination

Last week my kids’ school went on a field trip to the University of Santa Cruz to observe a black hole multimedia exhibition. We were invited there by Enrico Ramirez-Ruiz, the astrophysicist and the fellow parent at the school. When Enrico is not busy pushing the frontiers of science (he is impartial to violent explosions), he teaches astrophysics to children age 4 to 12.

The exhibition combined the visualized data from recent Extreme Mass (more...)

A Personal Assistant Technologies or PAT Hackathon

When tech media started proclaiming 2016 as the year of the bots, they seem to have nailed it. At Oracle we have at least three groups working on bots, OAUX included.

One of the latest forays into bots was a Personal Assistant Technologies (PAT) hackathon, organized by Laurie Pattison’s (@lsptahoe) Apps UX Innovation Events team, open to people across Oracle. The goal? Create a great use case for bots with a great (more...)

userassistance-blog-blog: (via…



userassistance-blog-blog:

(via https://www.youtube.com/watch?v=g3MJLcH0nGs)

Vector Watch Streams Competition: Developing Glanceable Notifications

I am pleased to say that I was asked by Vector folks in Bucharest to be one of the judges of the Vector Watch Streams competition for developers

I have a big interest, shall we say, in the user experience of wearable technology, especially smart watches, so I couldn’t wait to see the entries and what they might offer UX pros and the fashion conscious wearable tech whisperer alike. 

Of course, I am (more...)

XMind 8 is published

Already several years I´m a user of XMind. It is a very rich free MindMapping tool. I find the free version very usefull.

Today I found out that the new XMind 8 is published. You can get it on xmind.net.

Enjoy.

Mixed Reality Demo – The Physical Parts

I have been always intrigued by the fact that people get deeply attached to the characters in the game (e.g. Second Life), or virtual pets. And with sufficient advancement in technology, the virtual characters may eventually cross the boundary and get attached to real-life people (e.g. Sci-Fi movie such as “Her”). While that is still a little far away from now, I’ve been looking to explore the 2-way communication and interaction between virtual (more...)

OSB Thread handling recommendations

I have got questions on performance of OSB quite a few times already, during the years. A few years ago on a project I got eyes on a set of recommendations on workmanagers for OSB. Many developers know that for instance Service Call outs are blocking activities. And that you should use workmanagers to solve performance problems resulting from the use of those blocking activities.

If you do nothing on dispatch policies in OSB proxy (more...)

Blue, Gorm, Elektrisches Blau: David Bowie in Irish and Transcreation

Táimid ann sa mhóimint dhraíochtach seo
Sin é an stuif as a bhfitear brionglóidí  …
 * 

I’m mega-fan of the music of the late David Bowie. I love everything he did from Hunky Dory (1971) up to his Lodger (1979) album (you can keep the rest). His so-called Berlin Trilogy is amongst my favorite recordings; I always go to some of his old Berlin haunts whenever I find myself in the Hauptstadt

Indeed, Berlin is the European city (more...)

Lethal Combination Unpacked in Bucharest’s TechHub

Check out the report of the awesome Vector and Oracle Applications User Experience co-hosted event held at Bucharest’s TechHub.  

The evening’s interactive sessions focused on engaging the digital community there on the topics of cloud and wearable technology user experience.

Who will leave their Apple Watch to their grandchildren? Enablement in Digital Romania

Special care was taken to ensure all aspects of the event were well balanced:

image

(Guinness versus Murphys)

Watch out (more...)

Real Time Ambient Display at OpenWorld: The Software (for the Hardware)

This is part 2 of my blog post series about the Ambient Visualization hardware (part 1).  Also, please read John’s post on details about the creation of the actual visualization, from concept to build.  In the first part, I focused on the hardware, a sonar sensor connected to a NodeMCU.  In this second part, the focal point will be the software.

When I started working with ESPs a few years ago I was all (more...)

Get the hostname of the executing server in BPEL

This week I got involved in a question on the Oracle Forums on getting the hostname of the server executing the bpel process. In itself this is not possible in BPEL. Also if you have a long running async process, the process gets dehydrated at several points (at a receive, wait, etc.). After an incoming signal, another server could process it further. You can't be sure that one server will process it to the (more...)

Real Time Ambient Display at OpenWorld: The Hardware

As John mentioned in his post, one of the projects I worked on for OOW16 was the devices to provide the data to his Ambient Display.  Unlike previous years, where we record attendance and then produce a report a few days or weeks after OOW, Jake proposed that we’d somehow visualize the data in real-time and show it to the attendees as they are producing the data themselves.

In order to produce the data, we wanted to strategically (more...)

My First Oracle OpenWorld

This year I had the great opportunity to attend in person Oracle OpenWorld 2016 and JavaOne 2016. Since I was student, I heard how fantastic and big is this conference but you cannot realize it until you are in it.

All San Francisco is taken by a bunch of personalities from all companies around the world, and it’s a great space to talk about Oracle, show off our projects and of course, our vision as (more...)

Weblogic 11g to 12c: strictness in listen address

Let's say you have a virtual machine with two network adapters, both set on 'HostOnly'.
I used to do that and set the first one of those to a fixed IP address, say 10.0.0.1. To this one I coupled the hostname, for instance darlin-vce-db, using the /etc/hosts file. That way I had a fixed, always existing network address for the database.

Together with the database, you install WebLogic, for instance to serve (more...)

OTN Appreciation Day: – the day after – BPEL, SOASuite and SCA (in that order…)

Unfortunately I noticed this nice initiative only yesterday: OTN Appreciation Day. I did not had a change to cook something up, but I do like to add some mustard after the meal, as we say in Dutch.

In the titles I miss BPEL. In 2004,when Oracle acquired Collaxa, I worked at Oracle Consulting in the Netherlands. Was working with Oracle Workflow and Interconnect. Oracle wasn't yet into SOA really. But with BPEL PM they acquired (more...)

SQL Developer: Live and Let Live my db-connection

At my current customer I have SQLDeveloper open the whole day, and regularly I come back to it to query my throttle-table to see if my requests have been picked up. But regularly my database connection have been broken because of being idle. Probably because of a nasty firewall between my remote development desktop and the database.

Googling on it I found an article of That Jeff Smith on busy connections. That blog is really (more...)