Thursday, 14 May 2009

OAIS version for public examination

Thanks to David Giaretta for the following information on the state of the revision to OAIS (I have commented earlier on this process):
OAIS version for public examination

Many comments and ideas for clarifications and improvements for OAIS were received as part of its 5 year review process.

These suggestions were reviewed and the proposed dispositions sent to their originators for further comment. This draft version of OAIS contains these and many other improvements and is the candidate for submission to ISO for review. At this stage we are seeking primarily to identify errors rather than further ideas.

The PDF file is available at http://cwe.ccsds.org/moims/docs/MOIMS-DAI/Draft%20Documents/OAIS-candidate-V2-markup.pdf

Please send corrections to oais-support@oais.info by 15 June 2009

(NB there are some cross-reference errors which will be corrected in the final version)

Shortly after this date the corrected OAIS update will be sent to ISO and in due course this will be released for international review at which point further comments may be submitted.

John Garrett (chair) David Giaretta (deputy-chair)
DAI-WG CCSDS

Tuesday, 5 May 2009

What are data?

Another nice blog post from Peter Murray-Rust, in his "thinking out loud before a presentation" series, from which I quote:
"Different people would have cutoffs at different points on this hierarchy [CR: Data → Information → Knowledge → Wisdom] but I think the following are fairly common attributes of data:
  • it is [sic] distinct from most prose (although some prose would be better recast as data)
  • it is generally a component of a larger information or knowledge structure
  • facts and data are closely related
  • many data are potentially reproducible or unique observations, are not opinions (though different people may produce different data)
  • data, as facts, are not copyrightable.
  • Collections of data and annotated data (data + metadata) may have considerably enhanced value over the individual items.
  • Data can be processed by machine
Here are some statements which provide data:
  • 36 26 38
  • Melting Point: 300 K
  • The reaction product was red
  • my blog page is http://wwmm.ch.cam.ac.uk/blogs/murrayrust
and here are some which are not data
  • her work is well respected
  • we thank Dr. XYZZY for the crystals
  • we find this reaction very difficult to perform
I think I mostly agree with that, although it made me think quite hard, and of course at the extreme anything is data for someone (these words are mere data for Blogger or our RSS aggregator or Google, for example). this can get difficult when your mission is to support research data! Our advice from JISC is to recognise the potential ambiguity, be flexible in accepting others, but take our own view in what we create.

Monday, 4 May 2009

New nature corresponding author policy on data

Thanks to Michael Jubb for pointing me to the editorial outlining the new Nature policy:
"Accordingly, we have modified the Nature journal policy on authorship, which is detailed on our website (http://tinyurl.com/dkgbf8). For papers submitted by collaborations, we now delineate the responsibilities of the senior members of each collaboration group on the paper. Before submitting the paper, at least one senior member from each collaborating group must take responsibility for their group's contribution. Three major responsibilities are covered: preservation of the original data on which the paper is based, verification that the figures and conclusions accurately reflect the data collected and that manipulations to images are in accordance with Nature journal guidelines (http://tinyurl.com/cmmrp7), and minimization of obstacles to sharing materials, data and algorithms through appropriate planning."

This sort of policy from respected journals is seriously good for data curation!

[Updated to enable the Nature tinyurls.]

Tuesday, 21 April 2009

Lazyweb: Mac backup software associated with Iomega Jaz?

In my data recovery sideline, I thought I might tackle some of my own ancient media. I have a number of Mac backups on ancient Jaz 1 GB disks, written in the period 1997-1999. Andrew Treloar of ANDS has recovered the contents of those files onto CD-ROM, so I'm not looking to read the media any more. There are 2 backups on each of 2 Jaz disks, and the CD has 4 files from each Jaz disk. The earliest two have the following names:
FIGIT 2.971113A #001
FIGIT 2.971113A.FULL
I'm guessing these were written on 13 November, 1997. Definitely from a Mac. Does anyone know what backup software wrote these? I would like to recover the contents if possible!

The .FULL is about 250 KB, while the #001 appears to be around 300 MB and is presumably the actual backup!

Any ideas on what the backup software might be? I thought it might be some standard software on the Iomega install. The install disks I still have don't read properly, but I managed to get sight of a directory for a French DOS install disk, and couldn't see any file names that looked like backup software!

Sunday, 19 April 2009

Engaging e-Science with Infrastructure

Last Friday I was at the National e-Science Centre (NeSC) for the second day of a workshop on e-Science; unfortunately I wasn’t able to get to the first day. I tweeted most of it with the Twitter hashtag #eresearch, so you might learn all you need to just be searching for that hashtag (although it is used for other things, especially by some of the Australians involved in ANDS). One thing I did like was the use of e-Science quite generally, without a specific focus on any one technology (ie it was not GRID-dominated!). However, that does it make it a little harder to define the e-Science bit.

Leif Laaksonen from Helsinki, Chair of the e-Infrastructure Reflection Group, gave the keynote (not sure if, or when, the slides will be made available). The e-IRG prepares white papers and other documents aiming to realise the “vision for the future […] an open e-Infrastructure enabling flexible cooperation and optimal use of all electronically available resources”. He mentioned the European Strategy Forum on Research Infrastructures (ESFRI); this group must be doing something right, as apparently they have 10 billion Euros to play with to build and maintain this infrastructure! He spoke quite a lot about sustainability, but it appeared that this means not paying for infrastructure through a succession of European projects, but rather through sustained funding through national governments. Hmmm. I wondered what happened when a country has a bad budget year and cuts its infrastructure project; how much of the global infrastructure can be damaged by that?

Laaksonen had a number of interesting diagrams in his presentation, which can be seen from the web site. One that alarmed me (slide 17?) had an un-differentiated layer of “data” just above the network layer. I worry that is a dangerously simplistic summary; the data layer is far more fractured than that, with disciplinary, sub-disciplinary, even sub-group different approaches to curation.

Laaksonen did show a great slide, dating from 2003, showing routes of innovation from academic research to industrial acceptance. Not a monotonic progress!

This was followed by 3 quick presentations, one on the National Grid Service (not the one that supplies electricity and gas, but the one that supplies compute and data storage resources, using, yes, GRID technologies. The second was on OMII-UK, aiming to sustain community software developments, but itself, like the DCC, perhaps facing its own sustainability crisis? Finally, I gave a short presentation on the DCC, based on the one I gave to the environmental data managers a month or so ago. Then Bruce Beckles from Cambridge gave a wonderfully enthusiastic talk on being a one-man support service for e-Science within the Cambridge IT infrastructure.

After an hour-long panel session (no notes as I was on the panel; there was quite a focus on data, and on education & training), and lunch, there was an interesting demo session in the afternoon. This was organised so that each demo was given twice, and there were 3 sessions of 20 minutes each, so you could see quite a lot. I took in a Taverna demo (workflows, which I've wanted to understand better for some time), found I was the sole person in the second demo on NaCTeM (which meant I could ask all the text mining questions I wanted), and then saw the e-Science Central demo. Disappointing that the latter invented their own workflow system, although they claim there were good reasons, and they are hoping to backstitch Taverna in later (@lescarr tweeted back to me that their site doesn't use UTF-encodings, so if you hover over their rather nice cartoon images, the captions come up all wonky!).

Finally the wrap-up session, chaired by David de Roure (not as advertised). We were meant to find “just 3 things” that needed to be done to move e-Science more firmly into the national infrastructure. But of course our enthusiasm got the better of us, and we couldn’t stop. I think David and Malcolm Atkinson between them have the job of winnowing it down to the 3 top priorities. Altogether, a very interesting day; it’s good to see data becoming a real priority in e-Science!

Amiga disk data recovery: progress and limitations

You may remember that I have been attempting to recover files and content from various sources from 10 or more years ago. One of these was an Amiga disk. On the label is the note: "Dissertation 17/4/96, CV.asc, CV, 29 September 1996".

I’ve described earlier some attempts to get the Catweasel controller to read the disks. After eventually figuring out how to configure the disk-reading program ImageTool3 for the Catweasel, I tried the Amiga disk. It worked fine, with as far as I can see zero errors. From a cursory scan of Google, I reckon this raw disk format is known as ADF, so I renamed it XXXAmiga.adf (.adf was one of the candidate extension names under the selected "Plain" category for the ImageTool3 program).

Now, of course, we have to work out first how to extract files from the disk image, and then how to convert your particular file format into a modern day format.

Just simply reading the raw disk image with Notepad on Windows or Textedit (on my Mac) shows that there is real text there, that made sense to my colleague (see below)!

A comment from “Euan” on my earlier post suggested that we try the WinUAE Amiga emulator, and my colleague did that. He reported:
“Success. I've not only got the WinUAE Amiga emulator working, but managed to find a copy of the application that I wrote my CV and dissertation in (Final Writer 5) and have been able to read the files off the disk image you sent and display them (screenshots attached).

Not having any luck reading the individual files directly [CR: from his Windows system], though -- other than the odd word related to fonts and colours -- but then they are in native FW5 format.”
Image from the dissertation seen in Final Writer
I asked if he was able to do any "save as" operations in his emulated Final Writer program, to move files from the disk image into the Windows file store. He reported:
“I've tried re-saving my files in another format, if that's what you mean, but the program doesn't do anything -- I can select Save > Save As... from the menu but nothing happens. However, I can see all my individual dissertation files from my PC as the file system is mapped onto a directory.”
Raw image from the same part of the dissertation grabbed from Textedit on the Mac
It was remarkable how much could be read directly in the disk image!

Now my colleague was able to read his CV.asc file with Notepad on Windows, but so far we have not been able to convert the dissertation to a modern format, nor to connect the Final Writer program inside the emulator to a printer. Frustratingly close, but still not quite where we would like to be. I did find a demo copy of Final Writer for Windows 95 on the WayBack machine (earliest lift of the site, also 1996), but unfortunately this wouldn't open the existing image unless we upgrade to the full-featured version... but the company appears to have gone bust in 1996-7 or thereabouts!

So what have we learned from this?
  • It is possible to read a 13 year old floppy disk from an obsolete machine with an apparently incompatible disk format, kept under conditions of less than benign neglect, using cheap hardware on a recent Windows PC.
  • It is possible to access the files from the obsolete operating system using an emulator that appears to have been written by spare time volunteers.
  • It is possible to run the original application that created some of these files, under the emulator, and to read and process them (but not, so far, to save in another format).
  • Using the emulator is valuable, but constraining (in being unfamiliar technology, with few manuals etc) and limiting (in not, so far, being able to do much more with the files). We would now like to migrate them to a modern environment; for my colleague, this means Windows or Linux.
Fascinating!

Wednesday, 15 April 2009

5th International Digital Curation Conference: Call for Papers

The Call for Papers for the 5th International Digital Curation Conference has just been published. With the title "Moving to Multi-Scale Science: Managing Complexity and Diversity", the conference will be held in London from 2-4 December, 2009. I believe this is THE conference for papers on advances in digital and data curation! The text of the call follows:
We invite submission of full papers, posters, workshops and demos and welcome contributions and participation from individuals, organisations and institutions across all disciplines and domains that are engaged in the creation, use and management of digital data, especially those involved in the challenge of curating data for e-science and e-research.

Proposals will be considered for short (up to 6 pages) or long (up to 12 pages) papers and also for demonstrations, workshops and posters. The full text of papers will be peer-reviewed; abstracts for all posters, workshops and demos will be reviewed by the co-chairs. Final copy of accepted contributions will be made available to conference delegates, and papers will be published in our International Journal of Digital Curation [external]. Accordingly, we recommend that you download our template and read the advice on its use.

Papers should be original and innovative, probably analytical in approach, and should present or reference significant evidence (whether experimental, observational or textual) to support their conclusions.

Subject matter could be policy, strategic, operational, experimental, infrastructural, tool-based, and so on, in nature, but the key elements are originality and evidence. Layout and structure should be appropriate for the disciplinary area. Papers should not have been published in their current or a very similar form before, other than as a pre-print in a repository.

We seek papers that respond to the main themes of the conference: multi-scale, multi-discipline, multi-skill and multi-sector, and that relate to the creation, curation, management and re-use of research data. Research data should be interpreted broadly to include the digital subjects of all types of research and scholarship (including Arts and Humanities, and all the Sciences). Papers may cover:
  • Curation practice and data management at the extremes of scale (e.g. interactions between small science and big science, or extremes of object size, numbers of objects, rates of deposit and use)
  • Challenging content: (e.g. addressing issues of data complexity, diversity and granularity)
  • Curation and e-research, including contextual, provenance, authenticity and other metadata for curation (e.g. automated systems for acquiring such metadata)
  • Research data infrastructures, including data repositories and services
  • Disciplinary and inter-disciplinary curation challenges and data management approaches, standards and norms
  • Promoting, enabling, demonstrating and characterizing the re-use of data
  • Semantically rich documents (e.g. the “well-supported article”)
  • The human infrastructure for curation (e.g. skills, careers, training and organisational support structures, careers, skills, training and curriculum)
  • Curation across academia, government, commerce and industry
  • Legal and policy issues; Creative Commons, special licences, the public domain and other approaches for re-use, and questions of privacy, consent, and embargo
  • Sustainability and economics: understanding business and financial models; balancing costs, benefits and value of digital curation
Important Dates
  • Submission of papers for peer-review: 24 July 2009
  • Submission of abstracts posters/demos/workshops: 24 July 2009
  • Notification of authors of papers: 18 September 2009
  • Notification of authors of posters/demos/workshops: 2 October 2009
  • Final papers deadline: 13 November 2009
  • Final posters deadline: 13 November 2009