Value Streams Inventory and Attributes - Glossary of Terms and Phrases

Value Streams Inventory and Attributes

Chapter 2. Glossary of Terms and Phrases

The following terms are used throughout this document with specific meanings. Terms defined in the IF4IT Enterprise Inventory Management Best Practices document or in discipline-specific Best Practices documents are not duplicated here — refer to those documents for broader inventory governance vocabulary.

Term	Definition
Value Stream	An end-to-end sequence of stages through which the enterprise delivers a specific form of value to a specific stakeholder, beginning with a triggering stakeholder need and ending with delivered value. Stable across the process redesigns, technology replacements, and reorganizations that change how it is carried out.
Value Stream Stage	A distinct phase of a value stream’s end-to-end flow. Stages are ordered in sequence; value is created progressively as an instance of the value stream moves from stage to stage. In this version of the inventory, stages are captured as an ordered attribute of the Value Stream.
Operational Value Stream	A value stream that delivers value to a customer or stakeholder in the course of running the enterprise. The primary construct governed by this inventory.
Development Value Stream	A value stream that builds and delivers the products, systems, and solutions that operational value streams depend on — most commonly, the flow by which new software is conceived, built, and deployed.
Triggering Stakeholder	The stakeholder whose need, request, or action initiates a value stream — the party at the starting end of the flow.
Receiving Stakeholder	The stakeholder who receives the value delivered by a value stream — the party at the completing end of the flow. Often, but not always, the same party as the Triggering Stakeholder.
Trigger	The specific event, condition, or request that initiates an instance of a value stream. Distinct from the Triggering Stakeholder, which is the party associated with that event.
Enabling Capability	A Capability that a value stream draws upon to do the work of its stages. Recorded in the Capabilities Inventory; referenced by the value stream’s Enabling Capabilities attribute. The reciprocal of the Capabilities Inventory’s Parent Value Streams attribute.
Flow Efficiency	The ratio of value-adding time to total elapsed time across a value stream, expressed as a percentage. The signature diagnostic metric of value stream health — a low value reveals a flow dominated by waiting and hand-offs rather than value-adding work.
End-to-End Cycle Time	The total elapsed time from a value stream’s triggering event to its delivery of value.
Bottleneck Stage	The stage of a value stream that most constrains the throughput of the whole flow. The bottleneck moves over time as the value stream is improved.
Semantic ID	The structured, human-readable, AI-friendly unique identifier assigned to every Value Stream following the enterprise naming convention. Permanent and never reused once assigned.
Business Classification	The broad business domain a Value Stream primarily serves: Industry-Specific, Core Business, or Information Technology (IT). Unlike in the Capabilities Inventory, where these values define a hierarchy, here they are a flat classification tag, because value streams characteristically cross domains.

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