Colleagues -- please excuse the cross-posting; I've found the circle of people 
potentially interested in this was wider than I thought.


As part of the Mellon Foundation grant funding the start-up of LYRASIS 
Technology Services, LTS is to produce a series of tools that enable libraries 
to decide whether open source is right for their environments.  I’ve put a page 
up on the Code4Lib wiki 
(http://wiki.code4lib.org/index.php/Decision_Support_Tools) describing the 
kinds of tools that will initially fall into this area.  After review by the 
LTS Advisory Panel and comments from the community, statements of work will be 
drafted for consultants to create these tools and the work will be let out for 
contract. The completed tools will be turned into web documents in the form of 
whitepapers, checklists, spreadsheets, etc., and published along with the open 
source software registry now under development. To encourage consultants to 
share their knowledge, we are considering allowing consultants to identify 
themselves in the text of the document (e.g. “Prepared for LYRASIS with funding 
from the 2011-2012 Mellon Foundation!
  Open Source Support Grant by name of consultant.”)

With this background in mind, answers to these questions would be helpful:

        • Based on your experience and/or knowledge of open source software 
adoption, are there other tools or techniques that would be useful to document 
and make available?
        • Do you have suggestions for consultants to approach to complete the 
work of creating these tools?


Also, earlier post with the entity-relationship diagram generated a lot of good 
comments. Thanks to everyone for responding with observations about the design 
itself or with general questions about what we’re up to. Keep ‘em coming!

Based on that feedback, I’ve updated the diagram 
(http://wiki.code4lib.org/index.php/Registry_E-R_Diagram) to include entities 
for a Characteristic and a Characteristic_Value. The idea is that a 
Characteristic is like a label for a row in a comparison table, and that a 
Characteristic is associated with a particular Package Type. A 
Characteristic_Value is the answer to how a Package does or does not implement 
that Characteristic.

This might be easier to explain in a diagram. In a mockup of the package 
comparison page (http://dltj.org/temporary/registry-mockups/comparison.html), 
there is a list of Characteristics in the left-most column of the table 
followed across the page by Characteristic_Values for DSpace and Fedora. (The 
characteristics and values, as well as much of everything else in the mockups, 
are made-up data.) In this way we can have arbitrary Characteristics for each 
package type and allow them to be compared in a table like this. The values are 
strings, so no scoring or comparison is done; that is left as an exercise to 
the user depending on their own individual needs.

Speaking of mockups, that page and eight others can be found at 
http://dltj.org/temporary/registry-mockups/ . Hopefully you can start to see 
the correlation between the E-R diagram and how the system will work.

Comments and questions, both specific and general, are most welcome.


Peter
-- 
Peter Murray         peter.mur...@lyrasis.org        tel:+1-678-235-2955        
         
Ass't Director, Technology Services Development   http://dltj.org/about/
LYRASIS   --    Great Libraries. Strong Communities. Innovative Answers.
The Disruptive Library Technology Jester                http://dltj.org/ 
Attrib-Noncomm-Share   http://creativecommons.org/licenses/by-nc-sa/2.5/ 

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