Rockwell Automation FactoryTalk Scheduler Users Guide - Manual (Page 103)

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Glossary
Activity Area—a generic term for sites, areas, or lines within a production enterprise. An
enterprise may contain one or more sites, which in turn may contain one or more
areas, which may be comprised of one or more lines, which may have one or more
work cells. A work cell may belong to an activity area at any level in this hierarchy.
Statistics are automatically rolled-up through the activity area hierarchy.
Activity-based Costing (ABC)—a costing method that assigns the cost of resources to
the production lots that utilized those resources.
Additional Resources—resources in addition to the primary resource that are held during
one or more phases during an operation.
Area—a physical, geographical, or logical grouping of lines and/or work cells within a
site. A geographical location (e.g., Building 2) and main production capability (e.g.,
Electronic Assembly) usually identifies areas.
Assembly Operation—an operation where two or more production lots are combined.
Assembly operations are modeled using intermediate materials or by merging parallel
flows in a process plan.
Available To Promise—an approach that promises future orders based on uncommitted
inventory as projected by the master production schedule (MPS). This method is
based on the assumption of fixed lead times and infinite capacity.
Bad Order—one that was completed but violated one or more operation constraints
during the production process.
Bill of Materials (BOM)—The raw materials, component parts, or subassemblies
required to manufacture an end item.
Buy Lead Time—represents the estimated time delay (in days) between a purchase
request for material and the time that purchase order actually arrives in the system and
increases the material on-hand (e.g., the shipping time).
Calendar Exception—an override of a time pattern for a specific time interval.
Exceptions are typically used to represent holidays, planned maintenance, temporary
schedule changes, and breakdowns.
Calendar State—a state that may be used in defining work shifts for one or more
resources. A calendar state defines a resource efficiency or capacity, along with color
and pattern attributes for displaying the state in the Gantt chart. For example, shift
states Available and Unavailable could define resource capacities of 1.0 and 0.0,
respectively.