week5 LIS 2670 Metadata in Digital Libraries reading notes

1,WITTEN. Witten 2.2 witten2.2.pdf Witten sections 5.4-5.7 witten5.4-5.7.pdf
2.2 bibliographic organization
This part discusses the basic content of bibliography, such as the objectives and entities. Nothing to comment on.

MARC and Dubline Core
The content is helpful and interesting.
One question: In Dubline Core, two different people may create quite different descriptions of the same resource. How to reach uniformity in Dubline Core? In MARC age, many small libraries who lack catalogers often download the original MARC data which is created in large libraries by catalogers. Could we share Dubline Core data like MARC?
What is the main difference between Dubline Core, TeX and Refer? Can they reach the requirements of interoperability in digital libraries?

Anne J. Gilliland. Introduction to Metadata, pathways to Digital Information: 1: Setting the Stage http://www.getty.edu/research/conducting_research/standards/intrometadata/setting.html

I have read this essay before in LIS 2600. It is very useful. I am confused when I read this essay at the first time, but now I could understand the most parts since we have learned metadata.

Stuart L. Weibel, “Border Crossings: Reflections on a Decade of Metadata Consensus Building”, D-Lib Magazine, Volume 11 Number 7/8, July/August 2005 http://www.dlib.org/dlib/july05/weibel/07weibel.html

This essay is a personal reflection on the development of Dubline Core.
In my opinion, it will take a long time for a unified metadata to replace MARC. Maybe Dubline Core is just a transfer metadata.

week3 LIS2670 muddist point

1, "Original design using 7 bit code for each character". How dose this "7 bit" come? I count the number, it is 8 bit. I am confused.

2,what is the difference between identifiers and handles which we talked about last week? Do they refer to the same thing"

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week3 Background Reading Notes

Handle System Overview

This document provides an overview of the Handle System. The Handle System manages handles, which are unique names for digital objects and other Internet resources. Here is my question: why can not we replace DNS with handles?

Week 3 Representation of Digital Objects Required Reading Notes

1. LESK sections 2.1, 2.2, 2.7, lesk-cha2.1-2.2-2.7.pdf chapter 3.lesk-ch3.pdf
2. ARMS. Chapters 9. http://www.cs.cornell.edu/wya/DigLib/MS1999/Chapter9.html.
3. Clifford Lynch, “Identifiers and Their Role In Networked Information Applications”. http://www.arl.org/bm~doc/identifier.pdf
4. Norman Paskin. “Digital Object Indentifier (DOI) System”. Encyclopedia of Library and Information Sciences. http://www.doi.org/overview/080625DOI-ELIS-Paskin.pdf

I have to apologize that I write short reading notes this time. I did write a long note. But all my notes are lost when I click"publish post" and the system said my HTML style is wrong, then nothing left. It is unfortunate for me. I do not know the reason. Dose anyone else have the same experience with me? I had this problem once, but that time the blog system saved my drafts. But this time nothing is saved. I lost all notes that I just wrote.

My question are as follows:
What are the commons and differences between identifiers and handles? Do they refer to the same thing?
Do we have to apply for handles when we build digital libraries in our term project?

muddist point in week 2

1, what is the difference between data and medadata?

2, As a librarian, do we have to design the DL system? I just tried Dspace's Jumpbox, the interface is friendly and easy to use. What do librarians do in DL system?

3,I do not know the answers about the question on PPT. " why are semantic names so disruptive to the handle system? Are there any rules to name a handle?

4, In the class, we talked about P2P. What roles dose P2P play in digital library architecture? What advantages dose P2P bring to digital libraries? I am a little confused. P2P is a technology that does not need server, when we build a digital library repository, server is important for clients to retrieval and obtain information.

Background Readings notes: Week2

1,What is the Internet (And What Makes It Work)
The essay mainly talks about the history of the Internet. Nothing to comment on.

2,Digital Library Architecture
It is like a summary of digital library architectures. Digital libraries has to follow architecture guidelines and standards to ensure interoperability between systems. What about scalability and extensibility, do we also need standards?

3, http://www.ibiblio.org/pioneers/

A website profiles ten individuals whose work has contributed significantly to the development of the Internet. The interesting thing is that it is a master's project.
4,http://www.greenstone.org/

I need to search and read this website carefully. I would like to use Greenstone to build up my digital library project.

Requied Reading notes: Week2

1,A Framework for Building Open Digital Libraries
This essay mainly talked about the OAI Protocal for metadata harvesting and took the NDLTD program for instance. It is not difficult for me to understand the content after classes. OAI protocol is really important of the building of digital libraries like TCP/IP to the Internet. I do not know much about the content of OAI. But standards and policies are vital to all fields, especially information technology. One of purposes of IT is to access and communicate.

2,An Architecture for Information in Digital Libraries
It talks about the architecture of digital libraries in details, which is very useful to me. The author explains many concepts like handle, medadata, meta-object. I finally figure out the differences between handle and URL. Handles identify Internet resources by name and URL identifies resources by location. I feel that each component of digital library is perfect there; missing any component will result in the failure of digital libraries.
The author said that " use a lower level design will allow a greater selection of languages and interface tool." why will it happen? why they are languages and interface tool? Could it be something else? I do not understand the cause and effect here.

3,interoperability for Digital Objects and Repositories
Frankly speaking, I do not understand the content totally. Up to now, I have read lots of architectures about digital libraries, I think I am confused and cannot tell the differences. The mos impressive architecture table is drew by William Y. Arms, who is the most famous scholar in the field of digital libraries. Every digital library have its architecture, do we have paradigms to follow?

4,An Overview of World Wide Web
Basic knowledge about world wide web. very useful.

a delay of Week2 reading notes

It is hard for me understand the content now and I explained to TA . He agreed, I will post notes after classes.

DL week1 background reading notes

William Y. Arms. “Automated Digital Libraries, How Effectively Can Computers Be Used for the Skilled Tasks of Professional Librarianship?” D-Lib Magazine July/August 2000. 6(7/8). http://www.dlib.org/dlib/july00/arms/07arms.html.

" Automated Digital Libraries" is an interesting topic. Because computer programs can substitute for intellectually demanding task such as selection, cataloging, indexing, seeking information and reference services, which are traditionally carried out by librarians. If ADL works out, large number of librarians will be laid off. On one hand, I truly feel how strong the computer power is, since it can change one's career; on the other hand, I sincerely hope that this day will come slowly because I want to find a job a year later.

C. Schwartz. (2000). Digital libraries: an overview. Journal of Academic Librarianship 26(6): 385-393. [Available online at Pitt E-Journal http://ug4fn7ck2h.search.serialssolutions.com/

This essay presents an overview of the basic components of a digital library. It is comprehensive and meticulous. Nothing to comment on, but I think this essay is worth to read twice for me.

D.M. Levy. (2000). Digital libraries and the problem of purpose. D-Lib Magazine 6(1), January 2000. http://www.dlib.org/dlib/january00/01levy.html.

The essay talks about the problems of Digital Libraries that we discussed in class. I agree with the author's ideas about Digital Libraries. If we put all materials on the web, we will diminish the diversity of materials. I like to read physical collections, since I am accustomed to read knowledge on paper. The best way is provide tools to organize digital and non-digital collections together and research them. Besides, information does not mean good and more information do not mean better. We are now exposed to huge number of junk information and advertisements. Some of it is hazardous to people like criminal and addicted drugs. I totally agree with the author's opinion that " the current digital library agenda has largely been set by the computer science community and clearly bears the imprint of this community's interests and vision". I feel that many computer scientists exclude librarian's views when they are building DL. In this condition, DL is cold and distant to me, because what I saw from the interfaces is a combination of glut of programming languages. We need a feel of warm and comfort when we log in Digital Library.

DL week 1 required reading notes

Leonardo Candela et. al. (2007) Setting the Foundations of Digital Libraries. D-Lib Magazine 13(3-4), March/April 2007. http://www.dlib.org/dlib/march07/castelli/03castelli.html

I feel that this is a introductory essay of digital libraries. Firstly, the author talks about the evolutionary definitions of Digital Libraries. Then, he differentiate system notions, that is digital library, digital library system and digital library management system. This is part is helpful for me, because I used to think they indicate the same meanings. Thirdly, six main concepts and four main roles of actors are mentioned in digital libraries universe. It took me some time to understand the four different roles in DL. I am a little surprised that librarians are DL end-users, I thought they were designers before. so What we do is DL is just to use it ? This is disappointing.

Andreas Paepcke, Hector Garcia-Molina, Rebecca Wesley, “Dewey Meets Turing: Librarians, Computer Scientists, and the Digital Libraries Initiative” D-Lib Magazine, Volume 11 Number 7/8, July/August 2005. http://www.dlib.org/dlib/july05/paepcke/07paepcke.html

well, this essay mainly talks about Digital Libraries Initiative launched by National Science Foundation. After reading it, I feel that the author speaks about DL from the perspective of computer scientists. In the essay, most of the content mentions how good the computer scientists are, how computer scientists help librarians out of predicament. Computer scientists has done most of DL work, while the only thing that librarians do is to "make them choose content descriptions from a controlled vocabulary of terms". This is my emotional feelings after read it, maybe the author treated both careers fairly. I feel very sad, since I thought librarians are the main power in the construction of DL. However, from the words of the author, he consider librarians just help computer scientists built DL. Besides, in the last graph, he said,"as models for new libraries, like the ACM Digital Library for computer science emerge.....", Do Library Science Education have to emerge with computer science? These are my own feelings, perhaps I do not totally understand the essay, maybe I am extremely sensitive.

Christian Lupovici. (2008) The growth of the role of librarians and information officers in digital libraries. Digital Libraries, Fabrice Papy (eds). ISTE and John Wiley & Sons, Inc.
Questions: What is the different responsibility between librarians and information officer? Can librarian be called "Information Officer"?
It is a good point to mention that librarians should preserve digital documents in the long-term. Digital preservation is an important topic in Digital Libraries, since lot of unforeseen incidents may happen in the future. How to preserve? Use what devices? How to deal with accidents? I do not know current digital preservation, I thought digital information is preserved on hard disks. But the expectancy of hard disks are short , only about three years.

BORGMAN, chapter 2. IsItDigitalorIsitaLibrary.pdf
Borgman puts close examination on the term" Digital Library". She analyzes the definition from the perspective of research and a library-practice. The explanations solve my suspicions that why we talks much about DL technology. Currently, computer power set the foundation of the development of digital libraries. We need technology to realize information services in digital form through Internet. However, I am a little worried that more and more digital libraries are build up now, dose that mean the society need less librarians? What dose the library look like in the future? A library without librarians? Since the number of old readers are decreasing and the number of internet-readers are dramatically increasing, less users will visit physical libraries. I am worried about the future of this career.

the muddiest point in PPT week 1

well, I do not have muddiest point this week. the content of PPT contains many fundamental definitions, it is more important to understand them.

this blog is for Digital Libraries

Hello, everyone.

Nice to meet you. This is my first term in MLIS. I am happy to meet you all in this class.
Hoping we have a wonderful term. And I will learn from you. Since English is not my first language, I sincerely hope that you can help me to improve my study and I wil try my best to make you understand my words.

See you then!