Skip to main content

Info Radiation vs Info Refrigeration - a metaphor

Is a metaphor a form of lightweight model?


"All models are wrong, some models are useful."
-- George Box






The metaphor of information radiation is quite well know to many in the software industry.  Did you ask why?  Maybe because much of our work is very hidden from view, until we run the program and the computer interprets the code to produce some desired outcome.  Even that outcome may be obscured from view, and we must produce reports upon the data that the program produced.  So in a world where smoke and mirrors are common, one antidote to the common problem of not knowing where one is along the path toward product completion, a visualization is a powerful tool.

Generally speaking the information radiator has similar properties to the old fashion building heat radiator that used a steam media source to heat heavy iron and radiate the heat from the iron into the room.  It feels great to be standing next to a radiator when you've just come in from the cold.

What is the refrigeration process - what's required to cool some air?  Currently we use the 200 year old Carnot cycle to produce the cooling effect that your summers are known for.  I doubt that my home of Dallas Texas would be the Mecca of IT if not for Mr. Nicolas Carnot and his research into what would become air-conditions environments.  A comfortable 70 degrees indoors while the Texas sun is 95 in the shade.

Pressure-Volume diagram of Carnot cycle
I will leave the internal working of the AC unit to your study (I did it back in college - fascinating stuff).

When we put information is some systems we encode or compress it in such a way that the storage is efficient.  Think of a data base, significant work is done upon the data to store it.

When we pull it out of those systems we also must now do work to make the data into information, and then do more work to make the information understandable by the people that have little knowledge of where the data came from, the purpose of storing the data and the context from which that data/info may have resulted.  Someone will interpret that context, information and purpose and try to convey all this in a summary of the meaning behind larger data sets that the important people reviewing the information have time for.  This expansion of the information and subsequent summarization or generalization takes energy from the system as a whole.

pondering the connections - AC to info refrigeration metaphor....  what do you see in this metaphor?

is there a useful model to play with?

SEE ALSO:

Origin of the term Information Radiator - by Alistair Cockburn from the Harnessing Convection Currents of Information OOPSLA 2001 ppt pdf talk.

Comments

Most Popular on Agile Complexification Inverter

David's notes on "Drive"

- "The Surprising Truth about what Motivates Us" by Dan Pink.

Amazon book order
What I notice first and really like is the subtle implication in the shadow of the "i" in Drive is a person taking one step in a running motion.  This brings to mind the old saying - "there is no I in TEAM".  There is however a ME in TEAM, and there is an I in DRIVE.  And when one talks about motivating a team or an individual - it all starts with - what's in it for me.

Introduction

Pink starts with an early experiment with monkeys on problem solving.  Seems the monkeys were much better problem solver's than the scientist thought they should be.  This 1949 experiment is explained as the early understanding of motivation.  At the time there were two main drivers of motivation:  biological & external influences.  Harry F. Harlow defines the third drive in a novel theory:  "The performance of the task provided intrinsic reward" (p 3).  This is Dan Pink's M…

Exercise:: Definition of Ready & Done

Assuming you are on a Scrum/Agile software development team, then one of the first 'working agreements' you have created with your team is a 'Definition of Done' - right?



Oh - you don't have a definition of what aspects a user story that is done will exhibit. Well then, you need to create a list of attributes of a done story. One way to do this would be to Google 'definition of done' ... here let me do that for you: http://tinyurl.com/3br9o6n. Then you could just use someone else's definition - there DONE!

But that would be cheating -- right? It is not the artifact - the list of done criteria, that is important for your team - it is the act of doing it for themselves, it is that shared understanding of having a debate over some of the gray areas that create a true working agreement. If some of the team believes that a story being done means that there can be no bugs found in the code - but some believe that there can be some minor issues - well, …

Do You Put “CSM” After Your Name?

I’ve noticed a new trend—people have been gaining titles. When I was younger, only doctors had initials (like MD) after their names. I always figured that was because society held doctors, and sometime priests (OFM) in such high regard that we wanted to point out their higher learning. I hope it was to encourage others to apply themselves in school and become doctors also. Could it have been boastful?

The Wikipedia describes these “post-nominal initials”:
Post-nominal letters, also called post-nominal initials, are letters placed after the name of a person to indicate that the individual holds a position, educational degree, accreditation, office, or honor. An individual may use several different sets of post-nominal letters. The order in which these are listed after a name is based on the order of precedence and category of the order. That’s good enough for me.
So I ask you: is the use of CSM or CSP an appropriate use of post-nominal initials?
If your not an agilista, you may wonder …

Agile Story Estimation via Dog Grooming Exercise

Practice story estimation techniques with this exercise in dog grooming.

Related Post:
Affinity Estimating: A How-To by Sterling Barton.
Dogfood David why I feel like an expert in the concept of eating one's own dogfood.
   Slideshare:  Affinity Estimation - Size 60 Stories in about 20 Minutes.
For each dog below, estimate the work effort (size) required to groom the dog.  Assuming that you have the tools and experience to groom dogs.  Grooming includes washing, drying, combing, nail clipping, and hair triming in some cases.


Start with the ever popular:
Golden Retriever (22-24 in, 50-90 lbs).




The short haired Dachshund (15-28 lbs).



The Standard Poodle (15-18in, 40-80 lbs).




Bernese Mountain Dog (25-28 in., 65-120 lbs).




German Shepherd (23-26 in, 50-90 lbs).



Yorkshire terrier (5 in, <10 lbs).




Beagle (13-16 in, 18-35 lbs).



Boxer (26-31 in, 55-110 lbs).




Bulldog (40-55 lbs).





Labrador Retriever (21-25 in, 55-130 lbs).





Great Dane (28-38 in, 120-200 lbs).




Komondor (25-32 in, 90-130 lbs).


Situational Leadership II Model & Theory

Have you ever been in a situation where you thought the technique needed to move forward was one thing, yet the person leading (your leader) assumed something else was what was needed?  Did you feel misaligned, unheard, marginalized?  Would you believe that 54% of all leaders only use ONE style of leadership - regardless of the situation?  Does that one style of leading work well for the many levels of development we see on a team?

Perhaps your team should investigate one of the most widely used leadership models in the world ("used to train over 5 million managers in the world’s most respected organizations").  And it's not just for the leaders.  The training is most effective when everyone receives the training and uses the model.  The use of a ubiquitous language on your team is a collaboration accelerator.  When everyone is using the same mental model, speaking the same vernacular hours of frustration and discussion may be curtailed, and alignment achieved, outcomes …