Glossary

Word	Meaning
Work item	One thing that moves through the process: an order, a ticket, a claim, a job application. Also called an item
Step	One thing that happened to a work item, such as Approve Invoice. Some tools call it an activity
Hand-off	The move from one step to the next. The arrows on the map
Variant	One exact route through the process. Two items with the same steps in the same order share a variant
Main flow	The most common steps and hand-offs, without the exceptions
Bottleneck	A hand-off where a large share of the total time is spent
Drop-out	Items that reached one step but not the step you would expect next
Repeated step	A step done more than once on the same item, often because of rework
Slow end	The slowest group of items, for example the slowest 1 in 10
Median	The middle value. Half the items are faster, half are slower
90% within	Nine out of ten items are faster than this
Driver	A field value that is much more common among slow items than among the rest. A pattern, not a cause
Filter	A rule that narrows the pages to some of the items. Shown as a chip. The Overview always shows everything
Follow	The kind of record you look at the process from: orders, invoices, customers
Connected process	Several kinds of records that link to each other, such as orders, deliveries and invoices
Tested	A system and process glasstarn has run on a real or trial system, such as SAP purchase to pay
Untested	A system and process written from the vendor’s documentation and checked only on made-up data
Data checks	Questions glasstarn asks when the data could mean two things
Expected process	How the work is supposed to run, agreed by someone, used in Check
Conformance	How closely the recorded work follows the expected process
Followed it	Items whose recorded steps match the expected process exactly
Steps matched	Conformance as a share of steps: recorded and required steps that line up. 100% means every item followed the expected process
Project	A folder on your computer that holds the data, your decisions and the results for one set of data. You can ask it as many questions as you like
Engine	The part of glasstarn that does the counting and timing, on your computer
BPMN	A standard file format for process diagrams that most process tools can open
Event log	The name process mining tools use for a table of items, steps and times