Challenges of the Web

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Nov 17, 2013 (3 years and 10 months ago)

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Challenges of the Web

Open Access

November 7, 2008

Tom Feist, Webmaster & CIW E
-
commerce Developer

Tidewater Community College

College Communicator’s Association

Overview


Identify some popular open source apps


Define “Open” and “Open Access” (OA)


Examine why OA works (theory)


Challenges of OA (model)


Open computer networks (quick)


Discuss common OA concerns and specific OA
challenges for colleges


Open Source


Languages and databases (PHP)


Directories (Open LDAP)


Software (OpenOffice.org, FireFox)


Operating systems (Linux)


Web software (Apache/Tomcat)


Think tanks (eclipse.org)


Hundreds more



For Colleges


Course management
systems


Moodle


Angel Learning
(hybrid open/
proprietary)


Flat World Knowledge:
free textbooks


Connexions
: Rice
University project


iPaper
: MIT “Open
Education” project

What is OA?


First, what is “open”?

Open

Not
open

Closed

Proprietary

(Box)

SYSTEM X

OA Component Parts


Open applications


Open devices


Open services


Open networks


Why OA?


Collaboration


SARS


Hanny’s

Voorwerp


“Spirit” of education


OA academic journals


OA to information for
learning (MIT)


Lower costs (e.g. open
source software)


Customization

A high school teacher from the Netherlands discovered
an unexplained astronomical object, named Hanney’s
Voorwerp, when the public was invited to classify
millions of galaxy photos in an open project sponsored
by the Sloan Digital Sky Survey.

Why Does OA Work?


How does open access even work in
the first place?


Norms & social organizations


Trust and trust networks


Importance of diversity


Aggregating wisdom


How far can trust go?


Firefox Ubiquity Case


Explanation


Est. 250,000 d/ls


As many Ubiquity


extensions as general


Firefox ones


“No security, no verification, no problem”


HUGE security concerns


Proposed solution: trust network rating system

OA Challenges


A Model

Functionality

Privacy

Security

Freedom



Privacy


OA tipping point


How much privacy
to allow?


Privacy = anonymity


Inversely related to
open
-
ness




Security


Human nature:
inherently good
or evil?


Called “sewer
monitoring”


Improperly tested


code has back doors!


Does OA deliver
everything we
want

it to?


OA apps are customizable,
(we never have to settle)


OA plug
-
ins and add
-
ons
raise security concerns
(recall Ubiquity)




Functionality



Freedom


Freedom’s concerns


Bandwidth


Malware


Ethical


What to allow/
disallow?


Filters, firewalls


Total freedom =
chaos = creativity


Source: www.shannonburns.com

Positive thought break

Open Source Trivia


What country was the first in the
world to launch 100% open source
software in education and
government?


Hint: It was also the first country in the
world to have more cellular phones than
landlines…


Hint: This is a typical suburban schoolhouse…

Cambodia!


Government and
education are
100% open
-
source


For Cambodia, it’s
a question of
resources



One Laptop Per Child
(OLPC) open source XO
laptops


433 MHz processor


No hard drive


Open networks are its
specialty


RSS news aggregator

The rugged, low
-
power XO laptop
from OLPC is entirely open source.

XO Laptop


Built for OA

Open Computer Networks


Definition: computer network that
does not require user
authentication (i.e. log in/pw)


Unsecure (unencrypted)


Convenient


Safety = numbers

OA Concerns and Questions


Expertise and support can be lacking


Design flaws make security holes


Are proprietary systems or OA systems a better
value?


Hidden costs


Will proprietary systems integrate w/open ones?

OA Challenges for Colleges


CC: Broader constituencies (
open

enrollment)


College campuses change frequently


Scarce resources (human and $)


Tight security policies take time to develop and
even more time to maintain


“What’s best?” often at odds with “What’s
feasible?”


Conclusion/Questions


“Open” floor for questions


Download the podcast and PowerPoint slides at
www.tcc.edu/webservices


Learn more about my Cambodian IT research at
www.tomfeist.com