Friday, December 10, 2010
Summing it up
Sunday, November 28, 2010
Of Virtual Machines and Real Learning Experiences
I've been working with Virtual Machines a lot during the past semester and I think I've gained a lot of valuable experience in the process of repeatedly building and configuring an Ubuntu / Linux server. I'm not sure how many more times I really would want to do that (I'm up to five or six now, I think), but I certainly think that, for this kind of class, it is valuable to learn about some of the nuts and bolts of working with these kinds of systems. I'd even like to learn how to take the platforms online, but realize that time may prohibit that opportunity.
The possibility of a prefigured VM might offer more time to work on other things, such as collection development, and that would be a good thing. I doubt that I'm going to have to serve as a system administrator anytime soon, and perhaps my time would be better spent on things that relate more to the collection and less on technical stuff. Still for me, I'm a bit of a computer geek and I really enjoyed learning the command line stuff and I'm sure there will be times when that experience will give me the confidence and knowledge to boldly go where I might never have gone before.
Friday, November 26, 2010
Impressions of sites for digital repositories and related platforms
The Omeka home site is very nicely designed and implemented. It features both video and text instructions as well as easy access to forums and other support areas. I found it inviting and easy to use.
Eprints presents me with an overwhelming amount of information on the home page and as I go deeper in any given direction, I have the sense that I'm getting lost and that all these layers are just glommed on to each other. It is a much more confusing site than Omeka, perhaps reflective of the age and complexity of the Eprints platform itself. It's pretty utilitarian in a way, but not in a really good way, to my taste. It does give me a sense that this is a very BIG platform with a lot going on, which is a good thing. I think Eprints is due for a major overhaul of it's website.
DSpace.org has a much more spacious and inviting atmosphere. The left column menu bar gives an early indication of the DSpace platform interface and the News and Upcoming events column at right give a sense of an active user community. The placement of the New User features front and center engenders a sense of welcome for prospective newcomers. The weakest point in the DSpace platform seems to be support. The User Forum has been down for at least weeks and the DSpace wiki has been in the process of cleanup after migration for as long. I personally feel lost in the DSpace support area and this single fact may mean the difference between using DSpace for my repository and using it.
Drupal shows its strong points right from the home page. The design is clean, but contains lots of information. It offers good reasons to use Drupal with all the Modules, Themes, Active Developers, etc. etc. It also welcomes new users with a get started button and gives a feel for the active community of Drupal users with the various News, Updates, Forum Posts and Commits (sp?). The slogan is very persuasive: "Drupal: Come for the software, stay for the community" - wow. Indeed, there is a huge Drupal Community and it is easy to access and very active. Hmmm, maybe I need to reconsider Drupal as an option, now that I think about it!
JHOVE is pretty bare-bones and technical-looking. Which is probably a valid reflection of JHOVE in general. You have to be a geek to hang with JHOVE. PKP Harvester has a much friendlier design, interface and implementation. There are a couple support options, through manuals or discussion forms and although the information is dense, the organization of the site really helps navigate through so much information.
Sunday, November 14, 2010
Exploring Open Archives and Service Providers for OAI
This week, after installing the PKP Open Archives Harvester application (in the same VM as my ePrints repository) I explored various service providers using links from The University of Illinois OAI-PMH Data Provider Registry with the following impressions:
colLib: which then linked to http://libriotech.no/ which is a Norwegian company that provides installation and management for library software systems.
digitAlexandra: which took me to a dead page at http://www.digitalexandria.com/
DL-Harvest: which took me to a page with a CSRF security error and Error: Document Not Found notice, so I tried another link from the page for DList which linked to http://dlist.sir.arizona.edu/arizona/ and was able to access the University of Arizona Campus Repository. From there, since I was familiar with the DSpace format, I recognized that I could browse by Communities and collections and was able to make sense of what kinds of resources were there and how many. It is apparent that DList is the deepest area of the archive with 1477 resources. There was also a smattering of other data from the Tree Ring Lab, School of Music (Vern Yocum Collection, which actually got me hooked for a while) and Arizona Anthropologist.
Sydney College of the Arts Archive: which initially took me to http://gita.grainger.uiuc.edu/registry/details.asp?id=3537&sets=all#ListSets, where I could then find the link to the actual repository at http://va.library.usyd.edu.au/oai. It's not a very big repository, even smaller than DList, so again, the Browse feature came in handy. Now I'm looking for something larger scale that allows me to really search for something.
OAIster: taking my cue from the assignment, I figured I would take a look at this monster of library indexes at http://oaister.worldcat.org/. A search for Edward Weston gave a result of 2853 resources available, and took a whopping 19.51 seconds to deliver. Obviously, this kind of search would bring up a lot of records, but my attempts to utilize the OAIster faceted search to narrow the result were fruitless. My first attempt came up with an error message and the second attempt gave me a dialog window with a green spinning circle of death. I went back to the home page and tried again and got a message that the database I was trying to search was not responding. Try again. So, I tried the advanced search and didn't have much better luck.
My takeaway from the OAI section is that I have a better understanding of how resources are shared between institutions, especially libraries. I also get the feeling that it's not a smooth process and needs time and resources in order to make searching various collections easier and more reliable for the end user. The importance of metadata becomes more and more clear as I see the various pieces of the digital library/repository come together. There is much to do!
Tuesday, November 9, 2010
Wednesday, November 3, 2010
Getting started with EPrints - not the easiest install, but good CLI practice
This week has been spent installing and configuring EPrints. I found the EPrints installation to be slightly trickier than DSpace or Drupal. There were some things I had to wrap my head around in terms of setting up EPrints with the LAMP and SSH. One thing that tripped me up was that I had already set up the mySQL server with a username and password and needed to relay that through EPrints. Once I figured out what was happening there, things got easier. It does remind me that I need to be very careful about keeping track of passwords and I've been generally going along with what the installation instructions from Bruce recommend. It just makes it easier. The other thing about having problems is that I "get" to repeat the procedures multiple times, which actually helps me learn them a lot better. I genuinely try to make sure that when I'm typing in commands, I understand what I'm doing. My CLI skills are getting better, but I sure do get tired of typing in long strings of folders to get back and forth in Linux. I'm assuming that if I got better, I would find workarounds for this such as creating symbolic links for frequently used directories.
I customized or "branded" the EPrints front page with the name of my collection and a logo. This all had to be done using the CLI interface and moving things between my user home folder in Linux and then using CLI to copy it over to EPrints. I found this a little time-consuming and wished that there were more administrative features in EPrints that would allow better customization of it. The same goes for changing the taxonomy in EPrints. One has to go into the CLI interface and move things back and forth (or work in nano) in order to customize the taxonomy, which defaults to LCSH. I guess they assume that most people won't need a custom taxonomy, but I wonder about that. As more and more types and varieties of collections get digitized, it seems likely that custom taxonomies, folksonomies and tagging will be expected from users.
At any rate, I am looking forward to adding my collection to EPrints and seeing it in action. I've been impressed with some of the photo and video collections that I've seen in EPrints, which is a bit unexpected, but a pleasant surprise to be sure.
Friday, October 29, 2010
Deeper into DSpace
This past week I've been working more with DSpace and getting deeper into configuring thumbnails and previews. Whereas Drupal had modules such as imagemagick, DSpace has the native ability to display thumbnails and previews, it just needs to be turned on in the configs. In the process of trying to accomplish this (I never did get thumbs and previews to work in DSpace), I spent a considerable amount of time trying to find support forums or other communities such as those available in Drupal, but with no luck. DSpace apparently has either very little community support or everyone who uses it is way smarter than I am and they just figure it out on their own. I am pretty sure I could eventually figure this out on my own, but what's the point, really? Why shouldn't we take advantage of the human impulse to share problems and solutions and thereby build relationships and support communities so that, someday, when someone has a problem that I know the answer to, I can reciprocate and tacitly ask them to "pay it forward."
One positive thing about having these "problems" with DSpace is that I am learning a lot more about how the application is structured and where various folders and files are located. I am also coming to love the Virtual Machine's ability to take snapshots at various stages of implementation. If I'm not sure about something that I'm doing, I readily take a quick snapshot and make notes about where I am in the installation process and what's next, so that I can backtrack to a spot before problems start showing up and re-install or configure as needed to problem solve until I understand what needs to be done to get things working properly.
I've enjoyed working with DSpace more than working with Drupal. I appreciate both programs, but the fundamental approach of DSpace appeals to me as I contemplate ways to preserve multiple files from the same master file. That and the ability to run checksums on the files to check for possible corruption seem like really critical functions in a digital archive.
Wednesday, October 20, 2010
Spent a lot more time with drupal - and I would need even more!
It seems like it has taken me forever to complete the assignments for Week 5. Not only did I attend the Biodiversity Informatics Workshop in Nairobi right as Week 5 was starting, but I also got sick on the way back from Nairobi and had a very unproductive week getting checked out. I'm almost back to full speed, but this week's installations and learning curve for all the settings that go with the installations has left me somewhat dazed, confused and stressed about trying to take it all in.
My overall impression is that drupal is very useful, but takes quite a bit of time and expertise to run well. It does not seem like a completely natural fit for a digital collection of photos, video and various text formats. It can be made to work for that, but since I haven't spent a lot of time working with it, my intuition would be to continue to search for other solutions that might be a more natural fit. On the other, hand, I would also want to do some research into the popularity of drupal compared to other solutions and also see how big and active the user communities are for an assortment of content management systems out there right now.
One example of where I'm at with drupal involves the installation of the lightbox2 module. It was certainly easy to install. I had no problem just basically downloading it and moving it to the modules folder in drupal. On the other hand, even though lightbox2 is installed and apparently running quite nicely, in order to actually use it, I need to modify some html for the links to images. I did a quick search in the drupal.org site and could not find any examples of how to do this. There are so many moving parts to drupal that I can't seem to determine where I would start looking for a way to add snippets of html to image links. So, I'm stuck for the time being. It would be nice to have better documentation for this kind of thing, but since the lightbox2 module is basically free, with the developer requesting some financial support to keep developing it, I don't expect to get support that way. Perhaps if I were better integrated into the drupal community, I would know where to turn.
So, I'm glad that I have spent so much time with drupal the past few weeks, but I'm also going to be interested in seeing what else is out there - I saw something about DSpace, I think. It should be interesting!
Wednesday, October 13, 2010
First evaluation of Drupal
Wednesday, September 29, 2010
More from the Biodiversity Informatics Workshop
Friday, September 24, 2010
Photos from the Biodiversity Informatics Workshop in Nairobi, Kenya
Photos from the Biodiversity Informatics Workshop in Nairobi, Kenya. I can't seem to figure out how to put captions under the photos, so I'm just going to leave a bit of information here. Baboons and warthogs roam the grounds of the Multimedia University College of Kenya, Nairobi, Kenya. You see them most mornings and evenings around campus. You can also see a group photo of workshop participants and some classroom photos.
Thursday, September 23, 2010
Jambo from Nairobi!
Saturday, September 11, 2010
A lot on my plate
Friday, September 3, 2010
Deciding on a digital collection
Sunday, August 8, 2010
Project Management - Thinking It Through
Saturday, July 31, 2010
On the home stretch of IRLS 672
Sunday, July 25, 2010
mySQL - more about databases
Sunday, July 18, 2010
Databases - ERDs for nerds!
Monday, July 12, 2010
Technology - plan the work, work the plan
Monday, July 5, 2010
Moving from HTML to XML and beyond!
Sunday, June 27, 2010
HTML review and setting up the practice machine
Sunday, June 20, 2010
Some observations about learning about learning
The suggested reading "Learning Styles and Strategies" had some very familiar concepts to me. A lot of it seems to be based on the Myers-Briggs Type Indicator (MBTI), much of which is based on the work of Carl Jung, one of the 20th Century's great minds, in my opinion. Taking the MBTI has been a great help to me and countless others. It's well worth the time and minimal cost to take it.
It comes as no surprise to me that I am drawn to the video and other visual resources offered. Unfortunately, there weren't all that many, but compared to just a few years ago there is an explosion of audio-visual resources thanks to the topic we are studying - the NET! I especially appreciated the video about The Warriors of the Net. It is also interesting that the site is so clearly trying to find a way to pay for the much greater amount of time and energy required to produce even a relatively primitive computer generated animation such as this one. There will have to be a way to provide incentives to producing content like this. For me, it helps me understand TCP/IP much more easily. I'd be willing to participate in some sort of micropayment system to help keep this kind of thing going, but based on my experience, I may be in the minority when it comes to actually paying creative people for their work online.
I also want to check out the audio podcasts from Harvard University Extension. I briefly looked at the lecture series on Computing 101 and it sounded pretty good. I want to add some of those podcasts to my iPhone and see how well I do just listening to the information and not actually reading it or watching a video.
One thing I do like about Wikipedia is that it allows for non-linear access to information. I can skip around and move faster or slower when accessing content. There are many times when this is by far the most effecient way for me to learn. Video tends to lock one into a linear stream and since I have limited study time, I tend to be pretty choosy about which videos I'm going to watch. On the other had, if I'm really tired, I can watch a video at the end of the day a bit easier than trying to read about LANs, WANs or ARPANET!
Sunday, June 13, 2010
Adding Users and Groups using CLI, Gnome and Webmin
Installing Webmin was not overly challenging, but I did find myself stuck a couple of times and unsure whether or not the packages I needed had downloaded or if they had been installed. The CLI sometimes rolls by so quickly that it makes it difficult to check one's work to see what has actually happened - or not. At first, I neglected to enter the port number after the URL, which was an ssl address. Once I figured out the addressing problem, I was able to successfully log into Webmin and use it. Of the three interfaces, I liked Webmin the best. It even has a batch file capability, which I'm sure comes in handy for the hardy administrators out there who have a lot of users with which to deal.
Monday, June 7, 2010
Fun with vi vim nano and CLI
As far as actual use of the CLI, I've had a few problems this week. I found out the hard way that you have to be careful when placing an exclamation point in the command. I needed it in there as part of the format of the command from vi to the shell, but when I placed it where the name was supposed to go, I had all kinds of weird behaviors coming out of my system. I got some expert help to solve the problem and I'm sure getting more careful about what I type after those prompts in Ubuntu! I look forward to more practice with using the various commands and tools in Linux. I'm sure that with some practice, things will be easier than they are now and I won't get stuck not knowing where I am or how to escape for hours at a time.
Sunday, May 30, 2010
Accessing the remote desktop
There were a number of tutorials available to help me learn the commands for the command line interface. There are some online tutorials from Arthur Griffith's "Introduction to Linux," which are quite helpful, but I find that I have to keep backing them up and replaying them to catch what he is saying while I attempt to take notes. I might not need to do this so much for some subject matter, but when the topic is as complicated and detailed as this one, I think the written page may be a more efficient way for me to learn. Everybody has their own best way to learn - some are more oriented to listening, some to seeing, some to touching, etc. So, the resources at http://www.linuxcommand.org/learning_the_shell.php have been somewhat easier resources for me to process.
The other thing that is problematic for me in working with the remote desktop, is that I quickly run out of screen real estate. I'm used to working with big monitors and being able to see long pages of text in many windows at the same time. With the remote desktop, I get a fairly small window and when I'm trying to process information, I find it a bit difficult to navigate with the limited interface - it can be done, but I'm just spoiled from being able to use large monitors, I suppose. It takes me back to the days of the 9-inch screen on my Mac SE!
Saturday, May 22, 2010
Pocket Guide to ubuntu
No wonder everyone expects everything to be free online. In addition to the Ubuntu (a flavor of UNIX) operating system being available just for basically the cost of bandwidth, an ambitious fellow named Keir Thomas has written a nifty pocket guide to the OS, available for free, of course. In glancing through the PDF version, I do see that he has placed it in the copyright realm (the book, not the OS) and has a plug in there to encourage donations or to buy the physical book. It would be interesting to see how many people actually do pay at least something to the author for what was undoubtedly a lot of hard work based on even more hard work and experience. The URL to download the pocket guide is: http://www.ubuntupocketguide.com/.