Saturday, September 03, 2005

It's been a while, but I've returned to the blogosphere.

Along the way, I have acquired new knowledge and skills for instructional design and web design.
I hope to demonstrate these competencies through my personal website, which is, and has been, in progress, though not yet published.

I have furled a number of interesting sites that I access frequently from my desktop.
New links are added as I explore the vast resources of the web.

In the meantime, I'm heading over to the wikipedia to check out some new terms - specifically, what's a 'sandbox' in relation to a simulation? How are these things similar to or different from a demo or a presentation?

1 Comments:

At 8/9/05 7:25 PM, Anonymous Anonymous said...

Hi Lee,

Good start on your blog.

A sandbox is an environment which controls the level of access to areas outside the environment you are working in. Often times it's a place to experiment with formatting like on a Wiki or HTML tutorial site.

In a programming language (for instance Java or Javascript) the operating system/web server/virtual machine controls how much information you can read or write from the outside. The limits of your access if called the sandbox, too.

For example, you can't write a Javascript program to tell you what website the user's browser looked at before yours because it's outside of the sandbox - a security protection mechanism. You can't get that information even if you wanted to.

The problem with some notoriously unsecure web tools is that the sandbox is too big, some might say non-existant. Microsoft's VisualBasic is famous for this. The browser's VB sandbox allows programs to read and write to the user's file system, installing viruses or stealing passwords. That's why Microsoft is patching IE every time they find out a new way for someone to break out of the sandbox.

 

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