Enterprise AI Project Wiki · Requirements and business scenarios
Business scenario
Also calledBusiness scenario · Business-use scenario · Operational business scenario · Work scenario
A business scenario is a bounded narrative of one or more roles performing work in a defined business context to reach an identifiable outcome. It starts from a trigger and preconditions, explains how people, systems, and third parties use information, make decisions, hand work over, and handle exceptions, and ends in a confirmable state. It also records its applicability, frequency, scale, risks, and constraints.
A business scenario describes a contextual business task, not a feature name
Contract review, knowledge Q&A, and inventory management name business areas. They do not identify who needs to accomplish what, under which conditions, or the business state that should exist afterward. Systems with the same named feature can support entirely different scenarios because roles, data, timing, rules, and downstream responsibility differ.
A scenario returns static requirements to real work. It covers interaction with the system, the preceding business state, other roles acting at the same time, external systems, and work that remains after the interaction. This lets the team determine the screens, data, interfaces, permissions, rules, human judgement, and records actually required.
A business scenario may describe current or target work, but the two must be labelled. A current-state scenario reveals pain points, constraints, and existing accountability. A target-state scenario defines behavior the project intends to establish. Treating the ideal as current underestimates migration, training, and organizational change; copying the current state can preserve unnecessary work.
The anatomy of a project-ready business scenario
A scenario lets someone who was not present understand why a piece of work starts, how it proceeds, and when it ends. Roles and steps alone are not enough. Triggers, information, exception paths, and final records need to connect so the project can separate system behavior from human responsibility.
Scenario name and business objective
Name a task and outcome recognizable to the role, such as 'procurement lead decides an over-budget request,' rather than 'approval module.' State the result and adjacent work excluded.
Actors and responsibilities
Identify requester, primary operator, approver, notified parties, operating support, and people affected by the outcome. A role denotes responsibility, not necessarily an account name or individual.
Trigger
State the event, time, status, or external message that starts an instance. Entering a page is rarely the business reason for work to begin.
Preconditions and applicability
Record orders, contracts, identities, permissions, data, time windows, upstream decisions, and rule versions that already exist, plus the organizations, products, or value bands to which the scenario applies.
Inputs and information sources
List human input, business records, files, interface data, rules, and external evidence, including source, requirement status, validity, permission, and handling when information is absent.
Normal path
Describe the key human, system, and third-party actions, decisions, state changes, and handoffs in business order. Preserve business semantics without turning the scenario into every click.
Alternative, exception, and stop paths
Cover missing information, inapplicable rules, insufficient permission, duplicates, interface failure, timeout, conflict, withdrawal, and human exceptions, with recovery, completion, rejection, or termination outcomes.
End states and outputs
Define successful, rejected, cancelled, transferred-to-human, and awaiting-information outcomes, with decisions, data changes, notifications, files, and follow-up work. A success page is not a business end state by itself.
Business records and traceability
Identify input versions, decision basis, actor, time, state history, external responses, and exception reasons to retain, together with access and retention rules.
Operating characteristics and constraints
Record approximate frequency, peak, concurrency, deadline, batch size, seasonality, criticality, tolerated outage, sensitivity, region, and language because they affect architecture, cost, and acceptance.
How large and detailed a business scenario should be
Too broad, and a scenario becomes a slogan such as “handle customer service” that cannot be estimated. Too narrow, and it collapses into a click or API call with no business result. A useful level lets one role complete a verifiable task under clear conditions while retaining important exceptions and human branches.
- Does it converge on one identifiable result?
A scenario can span roles and systems, but should stop when one business task reaches a clear end state.
Check: name, trigger, objective, and end state form one coherent sentence.
- Does it preserve material context?
When a role, rule, or applicability condition changes the result, define a branch or child scenario rather than saying all other cases are similar.
Check: applicability, rule version, and branch conditions.
- Does it avoid screen-level fragments?
Login, open list, and click button are normally steps, not business scenarios, unless they independently complete identity, authority, or another business result.
Check: every scenario has independent business value and an end state.
- Does it avoid combining unrelated goals?
Request, approval, fulfilment, and settlement may share a journey but have different accountability, timing, and rules and often need linked scenarios.
Check: whether multiple goals lack one shared completion condition.
- Are summary and detail levels separated?
High-level scenarios support scope and communication; detailed ones support requirements, design, and testing. Stable IDs connect them instead of one document carrying every level.
Check: parent, child, and related requirements are traceable both ways.
- Is detail proportional to risk?
High-frequency, high-value, irreversible, sensitive, or regulated work needs fuller exceptions, authorization, and evidence. Low-risk work can use lighter records.
Check: scenario risk class and conditions requiring elaboration.
How to discover and confirm scenarios from real work
The strongest scenarios come from real work, not from imagining a process around a system menu. Watching frontline staff receive information, work around obstacles, repair data, and seek approval often reveals more than asking which features they want.
Start with real tasks and outcomes
Interview and observe users, operators, and support roles to learn what they accomplish, how they do it, and where work stops, instead of deriving invented scenarios from a proposed feature list.
Collect existing evidence
Review forms, policies, tickets, logs, reports, email templates, interfaces, training material, and exception records, distinguishing official rules, actual practice, and personal habit.
Set the trigger, boundary, and end
Mark the starting event, preconditions, main result, and excluded upstream and downstream work for each candidate so related scenarios connect without overlapping.
Walk one normal thread
Ask the responsible roles to take representative input from start to finish, identifying people, systems, decisions, handoffs, data changes, records, and the basis for each action.
Ask deliberately about off-normal conditions
Probe missing, incorrect, duplicate, conflicting, late, withdrawn, unauthorised, externally failed, and manually excepted cases rather than discovering hidden rules after launch.
Add operating volume and risk
Confirm frequency, peaks, deadlines, batches, sensitive data, monetary value, affected people, and failure consequences instead of treating one smooth example as operation.
Replay across roles
Have business owners, actual users, engineering, data, security, operations, and testing participate in proportion to risk and restate responsibility and outcomes from the same scenario. Record and decide disagreements.
Identify, approve, and maintain
Assign a stable ID and record version, applicability, sources, and confirmers. When rules or system boundaries change, assess linked scope, requirements, design, tests, and acceptance.
What a business-scenario record can look like
The constructed material below is unrelated to any customer and shows how a scenario can read as one connected account. A project may use a table, narrative, or process model. The format matters less than whether a reader can reconstruct the task, boundary, exceptions, and ownership.
SC-012: procurement lead handles an over-budget request
The goal is for an authorised procurement lead to approve, return, or reject a request under current budget and purchasing rules. Supplier contracting and payment are excluded.
Actors and trigger
The scenario starts after a complete purchase request exceeds the department's direct-approval limit. The procurement lead owns it, a budget owner may countersign, and the requester receives the outcome.
Preconditions and inputs
Requester, department, cost centre, and approval authority are valid; the purchasing-rule version is identifiable; purpose, amount, supplier, quotation, and required date are present.
Normal path
The system reads remaining budget and applicable rules, presents the request and basis, and records the lead's decision. Requests above that authority transfer to the budget owner; final status, rationale, and notification return to the request.
Material deviations
Unavailable budget data stops automatic assessment and transfers to a person; missing quotation returns for completion; a duplicate cannot reserve budget again; a requester who is also approver is replaced by another authorised role.
End and records
The scenario ends approved, returned, rejected, or transferred. It retains input version, rule and budget snapshot, viewers and decision makers, timestamps, rationale, state history, and notification result.
Operating conditions
Daily volume, month-end peak, decision deadline, value tiers, data sensitivity, interface availability, and retention still need confirmation before estimating and accepting the solution.
How scenarios connect scope, requirements, design, and acceptance
Different roles reuse the same scenario differently: scope decides whether this phase covers it, requirements derive system behavior, design chooses an implementation path, and acceptance returns to the original task. When that thread breaks, teams often deliver the feature without making the work succeed end to end.
Scope
Use scenario IDs to identify real tasks, roles, regions, and data included in a phase. Exclusions can reference scenarios too, preventing scope from becoming only feature names.
Requirements
Derive functional, data, access, interface, and non-functional requirements from role actions, information, decisions, states, and exceptions, retaining two-way traceability.
Product and interaction design
Design around task order, context switching, batch work, visible information, decision risk, and support needs instead of letting the organization chart or database tables dictate screens.
Architecture and integration
Volume, deadline, consistency, dependencies, external failure, and recovery inform interface style, asynchronous work, capacity, caching, audit, and resilience.
Access and security
Build authorization from roles, business objects, actions, and conditions. Test what cannot be viewed or executed and what needs renewed confirmation rather than only administrator and user roles.
Testing and acceptance
Convert normal, alternative, exceptional, and off-normal conditions into tests bound to input, expected result, version, environment, and evidence. A business scenario is not itself a test case, but is a coverage source.
Launch and operation
Use representative scenarios for rehearsal, monitoring, and diagnosis, place metrics and alerts at critical states, and tell support where to take over and how to recover.
Context an enterprise AI business scenario must also fix
What AI may do often depends on the available evidence, the user's identity, and the actions currently allowed. The same question can require a different response for another role or stage of work. An AI scenario therefore records the context that governs answers and actions, not just a sample conversation.
First state the role AI plays in the work
AI may simply find material or draft content, or it may classify, recommend, and call tools that change system state. Those roles carry very different responsibility. The scenario states how far AI proceeds, which business decisions it cannot own, and who still confirms and owns the outcome.
Knowledge and evidence
List allowed sources, data, rules, access, and validity, required citation, and what happens when evidence is missing or conflicts.
Input and context boundary
Define which user input, conversation history, retrieved content, identity, business object, and system state may reach the model, and do not trust model-generated identity or facts as authority.
Acceptable output and uncertainty
Specify factuality, completeness, format, tone, citation, and permitted variation, separating editable drafts from structured results that directly affect work.
Refusal, stop, and human takeover
For insufficient evidence, unauthorised access, sensitivity, high risk, conflicting rules, or model uncertainty, define refusal, questions, transfer, action blocking, and context preservation.
Tool calls and real effects
For messages, write-back, orders, tickets, or approvals, identify parameter sources, least privilege, confirmation, limits, idempotency, compensation, audit, and authority for irreversible action.
Evaluation and operating conditions
Prepare normal, boundary, exceptional, insufficient-information, adversarial, and high-impact samples; record model, prompt, knowledge-index, and tool versions; test realistic volume, latency, cost, and variability.
Affected people and foreseeable misuse
Beyond direct users, identify people affected by outputs and actions, foreseeable use outside the intended purpose, negative consequences, feedback, and appeal paths.
Concepts commonly confused with a business scenario
User stories, use cases, process maps, and feature lists each describe part of the work from a different angle. A business scenario first preserves the full context of one task, then lets later methods express the parts they need. It is not intended to replace every requirements artifact.
| Related concept | How it differs from a business scenario |
|---|---|
| Product-use or marketing scenario | Marketing often uses one sentence to say where a product fits. A project scenario needs traceable roles, conditions, paths, outcomes, accountability, and operating boundaries. |
| UML use case | A use case defines observable behavior a system offers to actors outside its boundary. A business scenario may cross people, systems, offline action, and target work before a system boundary is chosen. |
| User story | A user story packages a role, need, and goal into a manageable delivery item, often with criteria. A scenario provides fuller trigger, context, handoffs, exceptions, and end states and can generate several stories. |
| Business process | A business process organizes activities, events, gateways, participants, and messages across many instances. A scenario follows one bounded thread under particular conditions to one outcome. |
| User journey | A user journey describes steps, needs, and experience over time and channels toward a wider user goal. It may cross organizations and contain several business scenarios. |
| Business closure | Business closure asks whether input, processing, decision, result, record, and downstream responsibility connect completely. A scenario is the unit used to describe and examine one thread within it. |
| Test scenario | A test scenario selects conditions and behavior for verification and is derived from scenarios, requirements, risks, and failure modes. It further identifies test object, version, environment, input, and expected result. |
| Customer case study | A case study reports a real engagement and outcome and requires evidence and publication authority. A business scenario is a requirements model and does not prove delivery or performance. |
Sources and scope
This entry explains a business scenario used to describe a real business task in context. It is not an industry or department name, an aspiration such as improving efficiency, a feature list, a screen prototype, or a one-line usage example. It is also not identical to a UML use case, agile user story, complete business process, end-to-end business closure, test scenario, or customer case study. Teams may record scenarios as narratives, tables, swimlanes, journey maps, or use-case models. The decisive information is the actors, trigger, preconditions, inputs, normal and exceptional handling, human and system responsibilities, outcomes, and records—not the notation chosen.
- NASA Systems Engineering Handbook: scenarios, use cases, and concepts of operations identify how stakeholders intend to use a system and establish validatable expectations
- NASA Systems Engineering Handbook appendix: single-thread operational scenarios cover nominal and off-nominal conditions and use stable IDs for requirements traceability
- ISO/IEC/IEEE 29148:2018: requirements-engineering processes, information items, and required content, confirmed current in 2024
- GOV.UK Service Manual: learn from real users, tasks, triggers, existing practice, and outcomes and preserve traceability into user stories
- GOV.UK Service Manual: scope tasks from the user's wider journey instead of organizational structure or technical choices
- OMG UML 2.5.1: use cases define observable behavior a system offers from its boundary to actors
- OMG BPMN: a standard notation understandable to business and technical participants for processes, participants, events, and messages
- NIST AI RMF Core: intended purpose, users, tasks, application scope, impacts, risk tolerance, human oversight, and third-party components