Article Summary #5: Digital Preservation Metadata Standards, a LS 566 Post

Image from Educopia Institute

Angela Dappert and Markus Enders in Digital Preservation Metadata Standards discuss metadata within digital repositories. Digital repositories do not just act as a preservation tool for digital objects. They do everything from ingest information to providing access to that information with everything in-between. Repositories also actively work to prevent loss of the data in their care. Metadata is key to the preservation functions. There are several types of metadata that Dappaert and Enders split into four categories.

Description which describes the intellectual entity through properties. Structural which deals with the physical and logical structural relationships. Administrative which is about who handles the care of the digital object(s); it is also referred to as Preservation Metadata. Each of these categories are expanded or combined with another category to create the different standards used in Digital Repositories, i.e. LMER, PREMIS, METS, MPEG-21, and Z39.87. Dappert and Enders explain that there are so many options and the field is still relatively young to set any metadata standard in stone.

Reading this article just made the final piece click in my head how mind boggling complex metadata can be. It's a 3D puzzle with hundreds of possible solutions. I feel like I should sit down with each standard method and spend a week studying each of them. Maybe a week and a half. I do like the fact that they point out that this is still a developing and relatively new field, a fact that I think slips peoples minds because we are so accustom to technology. There are many points in different standards that have to connect to other standards to be able to be shared and, given how many standards there are available, is a massive undertaking.

Article Summary #4:Preservation Challenges in the Digital Age, a LS566 Post

Bernadetter Houghton, in Preservation Challenges in the Digital Age states right off the bat that "the digital preservation field is evolving rapidly." With such a quickly changing field there are many challenges, especially due to the nature of the digital object. Houghton lists different areas where the most common of challenges tend to show up: multiplicities, hardware and storage, software, legalities, metadata, and privacy to name a few. There are different aspects of digital preservation that do not come up when dealing with a physical object. Not only to archivists have to keep an eye on the things of the past but also keep an eye on the things to come. Change happens, it happens a lot and the best way to deal with it is to make the best educated guess on what will come and on what is best to preserve.

Houghton give an excellent overview on many things that come into play with digital preservation. As she pointed out there are many different challenges that come with each method that is used. The biggest problem is when things become obsolete or crash. I am one of many people who has suffered the blue screen of death and lost all my data. Twice. A blue screen of death is the absolute last thing anyone would want to happen to a large digital collection. I understand how important it is to make sure that there are steps and processes in place to avoid any loss of data, because once it's gone, it's gone.

Planning for Metadata, Article Summary #3, a LS 566 Post

Jody Perkins in her article, Planning for Metadata, gives an overview into what it takes to work with metadata. She explains that the creation of metadata requires planning. It cannot be done haphazardly. While designing metadata one has to keep in mind the interoperability issues and what to about about it without affecting the quality of the collection. Collections have to be reviewed and mapped out. Perkins, based on her experience, explains four parts of metadata design: "Evaluation of project collection and associated metadata, review of current standards,  review of other relevant collections, and documentation of decisions related to the selection and implementation of standards."

This article was written about ten years ago. Ten years is like dog years in terms of technology with how everything changes so fast. But the process that Perkins lays out in her article is still relevant today. Things have to reviewed and researched before anything can be implemented in any form. Perkins gives a list of guidelines for standards that I found very helpful (the links are still valid, another plus). There is also a checklist, 'Collection Evaluation Checklist for Metadata Planning' that is well thought out and I am planing on referring
to it for any collection I may work with in the future.

Metadata, Numb3rs, and Library School

I've tweeted about this before and I thought I should expand upon it. My first introduction to the concept of metadata was not in class for Library Science. It had first crossed my attention on the show 'Numb3rs'. For those of you who don't know it's a crime show about tow brothers, one is a genius mathematician the other is a FBI agent and together they solve crimes.

Yes, they solve crime with math.

As a result, concepts like metadata and datamining were shown being applied in a real world format. It helped ground these cerebral concepts in a fun way. It's a fun good show that I highly recommend. The prided itself on keeping the math and its application correct (there were some liberties here and there for the sake of story - but overall, real solid).

It's a bit like going in reverse for me - seeing real world application then learning about the theory.

Metadata is still a little daunting, but knowing and seeing an application of it makes it less so. In the end I can say that yes, I did learn something by watching TV.

Metadata for All: Article Summary #2, A LS 566 Post

From the Article

Mary W. Elings and Günter Waibel in their article Metadata for All: Descriptive Standards and Metadata Sharing Across Libraries, Archives, and Museums discuss integrating digital content in libraries, archives, and museums, and the challenges there in. There are different standards used in regards to handling digital content. They go over the key concepts for the different standards, like data field and structure, and data forma. With each concept they give an example of how it works within the standard method. There is a helpful table (see image) explaining which standards are used in each field. They point out that the success of this endeavor hands on the development of a "homogenous practice in describing like-materials in different institutions."

I am all about across the board standards. It makes sharing and preserving data effective and efficient. Plus the risk of something getting lost in the shuffle is reduced. I would also like to point out that there an awful lot of acronyms in this article (the field in general -we're all speaking in tongues at this point). Despite the article being ten years old, the section on current trends was informative and still relevant. There is a constant need to stay current, especially with the new technology that is always coming out. Library Science is always updating itself so that need of standards is vital.

A Reflection on 'Silence', a Crossposting

Check out my review of the Martin Scoreses film Silence over on 'The Catholic Geeks'!

A Reflection on Silence

Enjoy!