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Memes tagged “abstraction”

1–10 of 10

Abstractions Turned Obfuscations

There is an old saying in Silicon Valley, “There is the first 80% and the second 80%.” While it is really hard to create new technologies, it is also really hard to implement them for any measurable advantage. This has always been true: The steam engine didn’t matter until it was put into a ship and locomotive…

Top-Down VS Bottom-Up Approaches to Design in Software

One of the hallmarks of the Athena project was that faculty were asked to build their own educational software. Most worked with a set of assumptions about learning: students begin by learning “fundamental concepts”; formal, mathematical representation is always the best approach; students would use simulations the…

Loss of Legacy Programmers Means Loss of Systems Understanding

At Livermore, a legendary senior weapons designer is about to retire. At the Spring 2005 MIT workshop, his colleagues discuss this retirement and refer to it as “a blow.” They are anxious about more than the loss of one man’s ability to make individual scientific contributions. He has irreplaceable knowledge about the…

Don't Let the Simulation's Beauty Convince You It's Real

The architecture faculty who designed Project Athena’s Garden dreamed of transparent understanding of design process; today scientists are reconciled to opacity and seeing only a CAVE’s shadows. Over the past twenty years, simulation has introduced its dazzling environments and we have been witness to our own…

Where's Transparency With So Many Layers of Abstraction?

Some older scientists, for example, justify their use of opaque software by pointing to the infinite regress of computer representations. After all, they argue, it doesn’t really mean much to know how your simulation is programmed if all you are looking at is a high- level computer language. The “real guts” of the…

The Danger of Black-Box Abstraction

When I was a graduate student, if you were going to convert some data or something like that, you would write the FORTRAN code to convert the data yourself. That’s how you would do it. Now there are these programs. There are these windows and you click. I .nd with my students all the time, they don’t know why…

The problem with testing for abstraction

...students learn by doing. Testing for abstraction on an exam can’t be the only way we’re evaluating student learning. If I had taken an exam on leadership in World of Warcraft, I would have likely failed, because the way I was engaged was through the practice of performing the leadership, not by talking or quizzing…

Humans Are Abstraction Masters

What distinguishes us from cavemen is the level of abstraction we can reach. Abstraction enabled humans to move from barter to money, and from gold coins to plastic cards. These days, what's left of "money" is often just an account record we read on a computer screen, and soon it could just be a line of code in a…