RSC Content Type: Glossary

  • System of Execution

    A system of execution is software used to direct, control, and record operational work while that work is being performed. In manufacturing, it commonly refers to systems that manage shop-floor execution, guide operators, capture production events, and maintain the current state of work in process.

    A system of execution often sits between planning or record systems, such as ERP and PLM, and equipment or OT systems on the production floor. It may dispatch jobs, enforce routings, present work instructions, collect inspection results, record material consumption, capture timestamps, and route exceptions or approvals. A manufacturing execution system, digital traveler platform, electronic batch record system, or electronic DHR workflow can function as a system of execution depending on the environment.

    The term should not be confused with a system of record. A system of record is the authoritative source for a defined set of data, while a system of execution is focused on controlling and documenting the work process as it occurs. A system of execution may create or update records, but its primary role is operational execution rather than long-term master data ownership or reporting alone.

  • Rework Routing

    Rework routing is the defined sequence of operations, checks, and approvals used to correct a nonconforming part, assembly, or batch and determine whether it can return to the normal production flow. In manufacturing systems, it describes where the item goes, what work is performed, what evidence is recorded, and who must review or approve the disposition.

    Rework routing is commonly managed in an MES, digital traveler, quality management workflow, or ERP-connected production system. It may include added work instructions, inspection steps, material review board decisions, quality holds, re-test requirements, and traceability records linking the rework activity to the original work order or serial number.

    The term should not be confused with normal production routing, which defines the planned manufacturing path for conforming work. It also differs from shipping or network routing. Rework routing is specifically tied to correcting or evaluating work that has deviated from the expected process or specification.

  • Tiered Supplier

    A tiered supplier is a supplier classified by its position in a multi-level supply chain, usually based on how directly it supplies an original equipment manufacturer, prime contractor, or final assembler.

    In manufacturing, a Tier 1 supplier typically supplies directly to the OEM or prime. A Tier 2 supplier supplies a Tier 1 supplier, and a Tier 3 supplier supplies a Tier 2 supplier. The same company can occupy different tiers depending on the product, program, or customer relationship.

    Tiered supplier structures are commonly used in procurement, supplier quality, materials planning, traceability, and supply chain risk management. They help describe where parts, materials, outside processing, or technical data move across the extended supply base.

    A supplier tier is not the same as a supplier rating, approval status, or quality score. It describes supply chain position, not necessarily performance, risk level, or certification status.

  • birth-to-grave records

    Birth-to-grave records are the collected lifecycle records that document an item, batch, asset, or work order from its origin through its final disposition. In manufacturing, the term commonly refers to traceable evidence covering creation, receipt, processing, inspection, movement, use, maintenance, rework, shipment, scrap, or retirement, depending on the object being tracked.

    These records may be maintained across MES, ERP, QMS, PLM, EAM, or document control systems. They can include material certifications, lot or serial history, routing steps, operator signoffs, inspection results, nonconformance records, rework activity, maintenance history, and disposition decisions.

    Birth-to-grave records do not usually mean a single document. They are more often a connected record set or evidence trail. The term is also broader than an audit trail: an audit trail records changes and actions in a system, while birth-to-grave records describe the full operational history of the item or process being controlled.

  • Characteristic Ballooning

    Characteristic ballooning is the practice of marking each inspectable requirement on an engineering drawing or model-based definition with a unique identifier, often shown as a numbered balloon or bubble. The identifier links the requirement to inspection records, measurement results, and quality documentation.

    In manufacturing, characteristic ballooning is commonly used for first article inspection, in-process inspection planning, source inspection, and supplier quality review. A balloon may identify a dimension, tolerance, note, material requirement, finish callout, process requirement, or other verifiable characteristic.

    The purpose is to create a clear cross-reference between the design requirement and the evidence that it was checked. For example, a numbered dimension on a drawing may correspond to the same characteristic number in an AS9102 Form 3 or an inspection report.

    Characteristic ballooning should not be confused with measurement itself. Ballooning identifies and organizes the characteristics to be verified; it does not prove conformity unless it is linked to accepted inspection results and supporting records.

  • bottleneck analysis

    Bottleneck analysis is the systematic identification and evaluation of the process step, resource, equipment, material flow, or decision point that limits overall throughput. In manufacturing, it is used to understand where work is waiting, capacity is constrained, or production flow is being slowed.

    The analysis commonly uses data such as cycle time, queue time, work-in-process, downtime, changeover time, labor availability, yield loss, and schedule adherence. It may be performed with shop-floor observations, value stream mapping, MES data, ERP schedule data, or operational performance metrics such as OEE and non-production time.

    A bottleneck is not always a permanently fixed asset or workstation. It can shift by product mix, staffing, material availability, inspection load, engineering holds, or maintenance conditions. Bottleneck analysis should also not be confused with root cause analysis, although the two are often connected. Bottleneck analysis identifies where flow is constrained; root cause analysis examines why that constraint exists.

    In industrial systems, bottleneck analysis is commonly applied in capacity planning, scheduling, line balancing, continuous improvement, and performance monitoring. For example, an inspection station with long queues may be the current bottleneck even if upstream machining equipment has lower nominal capacity.

  • Trace Package

    A trace package is a collected set of records used to show the history and traceability of a manufactured part, assembly, batch, or lot. It commonly includes evidence of what material was used, which operations were performed, who performed or approved them, what inspections or tests were completed, and how the item moved through production or shipment.

    In manufacturing and regulated supply chains, a trace package may contain items such as material certifications, certificates of conformance, shop travelers, inspection results, test records, nonconformance or deviation records, serialization data, lot genealogy, and supplier documentation. The exact contents depend on the product, customer requirements, industry practices, and internal quality procedures.

    A trace package should not be confused with shipment tracking or software execution tracing. It is an evidence package for product and process history, not merely a logistics status record or a system log. In digital manufacturing environments, trace packages may be assembled from MES, ERP, QMS, PLM, inspection, and supplier systems rather than maintained as a single paper folder.