This is awesome!
Thanks for sharing!
Cheers!
Buzzy
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Library Director
Hood River County Library District
502 State Street
Hood River, Oregon 97031
541-387-7062
http://hoodriverlibrary.org
On 04/02/2014 08:51 AM, Doug Kyle wrote:
I've
created a new Evergreen feature I call Smart Float. After we
(Grand Rapids Public Library) moved to floating collections, staff
had to spend time managing and balancing floating collections.
Smart Float was created to automate those tasks as follows.
Smart Float automates the redistribution of floating collections
based on available shelf space and duplicate copies. Smart Float
also allows automatic
"re-homing" of items based on a number of circulations from the
original library or a specified time frame.
Upon checkin Smart Float will first check if an item needs to be
sent home, if not the item will float to the checkin branch if
space is available
and there are not too many duplicate copies. If space and or
duplicates don't allow floating to the checkin branch, it will
next float to the
branch with most space and no excess duplicates, then to the
branch with most space regardless of duplicates.
If no branches have shelf space it will stay where it is (float to
the checkin library).
Copy locations are the units of Smart Float operation. Copy
locations are mapped to the following attributes that Smart Float
uses to determine how to distribute copies.
- active: if true, Smart Float will be used, otherwise traditional
floating will occur.
- items_allowed: the number of items the shelving location can
hold.
- dups_threshold: the number of duplicate titles allowed for that
copy location.
- homing_threshold: number of circulations from the original
owning library.
- homing_lifespan: time interval, such as "3 months".
Items will be sent home within the homing_lifespan from creation
date, until the homing_threshold is met.
So if shelving location 'kids movies' has a homing_threshold of 1
and a homing_lifespan of "3 months", items in that shelving
location won't start floating
until they have circulated once from the owning library, or its
been 3 months or more since they were created.
The Grand Rapids Public Library is now running an initial version
of Smart Float in production on Evergreen 2.2. I've committed a
lightly tested version for Master in my working repository.
The implementation is almost entirely plpgsql code and no
Evergreen client side interface currently exists, but I wanted to
put it out to the community at this point in the hopes of finding
collaborators and getting it included in future releases.
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