Specialist queue
Also known as Expert queue, Specialized approval queue
Definition
A specialist queue is a set of items that require capability available from only a small number of people or systems. It is a queue caused by constrained expertise rather than by total team capacity alone.
Scarce knowledge creates waiting
A specialist queue forms when many items need the same narrow capability. The specialist may be an architect, security reviewer, database expert, or release authority. Adding more general implementation capacity will not necessarily improve the queue and may increase the work waiting for the expert.
A concrete example
An illustrative team has four changes waiting for one security reviewer. Two are small and two are complex. The team can reduce delay by clarifying which changes truly require that review, spreading safe knowledge, or improving the review path without lowering the security standard.
Manage the constraint
Measure queue age, arrival rate, review effort, and risk class. Prepare complete requests so scarce expertise is not spent retrieving missing context. Revisit whether the approval policy is proportional to the change.
Limitations
Expertise is not interchangeable, and training takes time. A specialist queue may be an intentional safety control. Do not optimize its length by removing necessary review.
How this relates to Weave
Weave can help teams identify review and delivery patterns associated with specialist changes. It cannot determine expertise or approval authority, so use the evidence with team ownership and risk context when deciding how to reduce the queue.
Explore Engineering intelligence