Friday December 28th

8:00pm The last libraries (Biomedical and Science and Engineering) close.

8:00pm-11:00pm Refresh copy of ACORN that will be used while production ACORN is being upgraded. ACORN will not be available to patrons or staff for these three hours.

11:00pm ACORN will be available for limited use*.

11:05pm start upgrade

12:00am start rebuild headings

Saturday December 29th:

4:00pm Start Rebuild Authorities

7:00pm Start Authority maintainence

Sunday December 30th

7:00am Start Rebuildtext

10:00pm Start Rebuild thesauri

Monday December 31st

2:00am: Run correct thesauri
3:00am: Run correct thesauri
4:00am: Run correct thesauri

6:00am: Switch back to Production ACORN and continue to run correct thesauri. Full use of ACORN can resume.

*No editing of bibliographic records. Circulation OK.