Flexknowlogy - Jared Stein » vista

Blackboard Vista Triggers Quirks Mode

Jared Stein — Thu, 02 Apr 2009 16:25:20 +0000

Ever been annoyed by Blackboard Vista’s (or Campus Edition 6+’s) rendering of your XHTML + CSS web pages? Yeah, me too–especially on Internet Explorer. This happens because Bb Vista triggers a browser’s quirks mode in spite of DOCTYPEs and validated markup.

More than just troublesome for pretty CSS-based pages, quirks mode, triggered on standards-compliant pages, can negatively affect the usability and functionality of the learning experience. For example, we use an inline quizzing Javascript that renders questions and answer choices and feedback based on standards mode CSS. In quirks mode this self-assessment tool is useless.

Blackboard Was Made For Quirks

Basically quirks mode means the browser thinks your web skills are not up to snuff, and the browser therefore renders your CSS in a non-standard fashion. Quirks mode is triggered when a DOCTYPE, e.g.:

…is missing, or invalid, or unknown, or not where it should be (i.e. the first line of the document).

javascript:alert(document.compatMode) pasted into the Internet Explorer address bar kindly informs us that this browser is rendering this page in quirks mode. Firefox will tell you if you go to Tools > Page Info. Advanced Box Model Test

But even if you’ve been careful to put a valid DOCTYPE into your web pages, once it’s loaded up into Bb Vista and linked to, either from a Folder or a Learning Module, the browser will go into quirks mode. Why does this happen? Simple: Bb Vista inserts XHTML and JavaScript at the beginning of all web pages onload. 140+ lines of it, to be exact. It’s an odious thing to do, but, what do you expect? It’s Blackboard.

It may (or may not) be important to note that this does not happen when viewing a page in the File Manager–only when a page is loaded from a link within the course.

What You Can Do

Not much. And yet this could be a big issue for Internet Explorer users (FireFox renders page in quirks mode [not "Almost Standards Mode" as I'd hoped], yet most standards-compliant XHTML and CSS still render well).

And though most users are still on IE 6 or 7 I had some hope for a way out with Internet Explorer 8. You see, Microsoft promised that “a page explicitly opts into standards mode” when it includes “a metatag in the page that specifies IE=8 or IE=EmulateIE8″. For example:

In practice, however, this META tag alone does not force IE8 into standards mode in Bb Vista–the misplaced XHTML is apparently too much for IE8 to ignore.

So the most practical solutions I can think of are:

Write custom CSS for Blackboard that renders (or re-renders) the page according to the quirks mode box model. This could be done using Internet Explorer conditional comments, for example:
I haven’t yet considered what CSS rules would need to be written to accommodate this, but if it was possible this seem like the most robust and efficient solution.
Rewrite the page with Javascript. After Bb has loaded (or begun to load) the page, Javascript triggers a full rewrite of the page, either wiping out or rewriting the Bb XHTML and Javascript in a more appropriate location (e.g. in a targeted, ID’ed element). I’ve asked one of my developers to try this out today, but already fear the additional load time it might put on the Bb-hosted page.

Any other ideas?

If this were only about appearance I wouldn’t be raising a fuss, but this can and does affect the usability of certain e-learning tools, and forces developers to ask, “How will this work in Blackboard?” yet again.

Blackboard Wins Patent Lawsuit vs. Desire2Learn

Jared Stein — Sat, 23 Feb 2008 16:30:00 +0000

Desire2Learn announced on February 22nd that Blackboard has won its patent infringement lawsuit against them, stating, “the jury has handed down its verdict that the patent is valid and that Blackboard should be awarded damages of approximately $3 million.”

Blackboard filed the lawsuit on July 26, 2006 against competitor Desire2Learn based on intellectual property claims related to it’s Blackboard’s U.S. patent #6,988,138. Blackboard has argued that it had invested 100 million dollars in the development of the educational products protected under the patent. (NoEduPatents.com has made an explanation of Blackboard’s 44 patent claims.)

Backlash to the Blackboard patent by the open source and educational communities has been strong since news of the lawsuit first broke, and will likely continue through communities such as boycottblackboard.org. I personally did not expect Blackboard’s claims would be upheld when re-examined by the patent office, let alone that the lawsuit would be validated by the jury.

Because the patent claims are broad and impact so many common e-learning features, Blackboard’s legal victory is bound to be discouraging and troublesome to other commercial learning management system providers such as Angel Learning, eCollege, and Agilix. Blackboard has previously declared that it would not assert it’s U.S. patents against open source software development, e.g. Moodle and Sakai.

Does this apparent magnanimity bolster my favor for Blackboard? Certainly not; the position is superficial at best, and Blackboard knows it. Anyway, it’s beside the point: though I personally lean towards open source software for educational technology, I am a capitalist, and free market competition and consumer-driven innovation of services and products is important to me. Blackboard’s overblown patent claims are an affront to innovation and competition, taking advantage of systemic failures in U.S. Patent regulations.

And though some will dismiss this news based on the argument that even conceptually the LMS has inherent flaws (failure to keep up with current technologies, inauthentic, lack of learner ownership, creepy-tree-house, etc), I believe the LMS is still a valuable toolset for many. The LMS has has propelled e-learning into a new frontier by standardizing the basic communication and delivery features for an educational audience. The LMS’s ability to provide teachers an easy-to-use set of online educational tools in a one-stop-shopping experience is and will remain considerable for the next 5 years at least. (The unfortunate reality is that alternative networked education “systems” such as personal learning environments are still being thought out and developed–at the very least alternatives are probably not ready for widespread adoption and implementation by faculty members.)

Regardless of whether you’re pro-LMS or anti-LMS in general, I think the larger debate about software patents particularly when applied to education is an issue we in ed tech all have a stake in. At the ITC conference last week I picked up a witty t-shirt given to me by The rSmart Group that signifies the position of many:

Sources

"Student Readiness" Survey Really an "Idealized Student" Survey

Jared Stein — Fri, 14 Dec 2007 06:05:00 +0000

I am a bit miserable about a series of questions that I whipped up for a survey device at the request of an instructor who teaches a Distance Education course.

Not only do I disagree with the instructor’s desired objectives in using this survey (she essentially hopes to prove that the reason students are failing her online course is because they are under-prepared or have wrong assumptions about online education–of course it couldn’t have anything to do with the fact that the course has nearly no media-enhanced learning, no student-student contact, and very little student-instructor interaction), I disagree with the questions that I wrote.

Of course anyone who has written survey questions with a mind to gain accurate and insightful information on the participants knows what a challenge the task is from the get-go; I don’t kid myself that it’s no easy endeavor, but I also think there has to be a better way.

Among my primary objectives in writing the questions were the following ideas:

Keep the survey short, so that students would actually do it.
Have some redundancy to check for accuracy and inhibit prejudicial responses.
Avoid asking questions that dare students to label themselves “dumb”.
Avoid questions that tempted students into labeling themselves “smart”.

But the primary objective was essentially this: after reading a good number of “student readiness” surveys online I wanted to avoid asking questions that gauged a student’s willingness to partake in a lonesome independent study course. “Independent study” is not equivalent to modern “distance education” in the Stein dictionary (in fact, even “distance education” is not equivalent to “distance education” in the Stein dictionary, but that’s another story). And so though several of my questions are based on the questions asked in other “distance education” surveys, I purposefully steered away from presumptive questions like:

Feeling that I am part of a class is:
a. Not particularly necessary to me.
b. Somewhat important to me.
c. Very important to me.

As if being “part of a class” is somehow mutually exclusive from distance learning! And it’s not that I’m opposed to independent study types of courses; in fact, I myself greatly enjoy and grow in isolation, but I recognize that’s not necessarily the norm.

Then there are questions that perpetuate instructors’ presumptions that they can get back to distance students at their leisure:

My comfort level with waiting a few days to receive instructor feedback is..
Low   Moderate   High

While it may be an unfortunate reality in distance education programs that instructors do often delay responding to students (I recommend a 24 hour turn around at the latest), we certainly don’t want to encourage that behavior, nor do we want to discourage student expectations of their instructors.

Finally, I also have disagreements with the term “student readiness” in general, as that tends to automatically place the blame for student failure at the feet of the students. Jared Spool, a Web usability expert whom I greatly admired, once inspired me to make the following provocative paraphrase, There are no user errors, only
design errors. And while I recognize that this statement is not universally true, it does challenge the designer (in this case, the instructor or the instructor’s instructional designer) to reconsider blaming the user (aka student) for failing to complete the task.

My Questions

Even though I have a pretty good insight into what I think is wrong with so many “student readiness” surveys, I still had a hard time making my fundamentally different. But I’ll share them here anyway, with the hopes that some brainy folks can offer better suggestions to achieve the same general objective: determine if our students are adequately prepared–both mentally and technically–for an online course experience.

(Note: these questions are randomized in the final survey to mask redundancy.)

Options: Strongly Agree | Agree | Disagree | Strongly Disagree
1. I often get things done ahead of time.
2. I can work independently and meet deadlines without being reminded.
3. I learn best through live classroom discussions.
4. I am comfortable engaging in class discussions on the Web.
5. If given clear instructions, I am confident that I can complete the assignment independently.
6. I often need to have instructions for an assignment clarified or explained more than once.
7. As a reader, I sometimes need help to understand the text.
8. When I need help understanding the subject, I am comfortable e-mailing an instructor to ask for clarification.
9. When I don’t understand something I’ve read, I ask the instructor to explain it as soon as possible.
10. I am very competent using e-mail and Web sites.
11. I am a skilled writer.
12. I don’t always comprehend what I read.
13. I expect to spend less time on an Distance Education course than a regular on-campus course.
14. I often put things off until the last minute
15. I expect a Distance Education course to be easier than a regular on-campus course.

If you hate these questions, give me something better.

And if you like them, you can download them here (This survey is licensed under a
Creative Commons Attribution-Noncommercial-Share Alike 3.0 United States License.):

DE Readiness Survey (survey).zip Blackboard Vista IMS Survey version
DE Readiness Survey (quiz).zip Blackboard Vista IMS Quiz version (scored for a “perfect” student)
DE Readiness Survey.txt Moodle GIFT format (scored for a “perfect” student)