By Roy Tennant CDL Service Design Manager

The Metasearch Infrastructure Project seeks to develop a robust set of tools for crafting tailored search interfaces to diverse information resources for specific audiences and/or purposes. For additional background information, including previous updates

Update (The metasearch infrastructure project is no longer active.   See: []

CDL Developments

Metasearch Software

Since the last update on March 1, 2006, we have successfully completed the National Science Digital Foundation grant, during which we demonstrated the integration of NSDL content along with licensed journal content.

Usability assessment work was performed on the prototype at UCLA by CDL (Felicia Poe and Jane Lee) and UCLA (Elaine Adams) staff. The report is available at

Screenshots of this prototype can be found at .

In working with the Common User Interface (CUI) based on Java Server Pages (JSPs) and Struts to develop this prototype, we determined that it was too complicated and time consuming to deploy for the potentially large number of search portals we expect. Therefore, we embarked on a refactoring of the user interface code in Ruby on Rails at the beginning of this year. This work is ongoing, and we hope to have it completed by the end of April.

We suffered a setback in this work due to a hard disk failure in late January. The timing of this could not have been better, as we were able to join the MetaLib v. 4 early adopter program at the last minute. By the end of March we will have installed this version, which will include the ability to provide faceted browsing of search results. This ability may not immediately be available through our user interface code, but it will be added as we can get to it.

Campus Developments
Elaine Adams from UCLA assisted us with NSDL prototype usability testing. UCLA is also
partnering with us to do a test deployment of the metasearch infrastructure, and through this
process inform our decision-making regarding deployment of this service.

Co-chaired by Marta Brunner and Caroline Kelley, the UCLA project will work with a campus academic department to select appropriate sources and build a search portal to their requirements using the metasearch infrastructure. UCLA has decided to change subject focus from the previous project on European Studies. UCLA and CDL staff will record the time and level of staff required to perform various deployment tasks. Once the prototype is complete, tests such as load testing will be performed. The main deliverable from this project is a report that summarizes experiences of CDL and campus staff, and makes recommendations regarding production deployment. The project runs from now until late Fall of this year. If the end result is a decision to deploy this infrastructure in production, one of the first projects will be an undergraduate search portal.

As time allows, CDL may also configure a test instance of the metasearch infrastructure for UC Merced to compare against their existing (Innovative Interfaces, Inc.) metasearch service.