SYSE.24:4 - Solution
SYSE.24:4.1 - Name one result and one decision
Write one sentence containing these five elements:
- the result being sought and its actual kind;
- the receiving use and the Systems whose use or condition matters;
- the configuration, operating conditions, horizon, and acceptance claims;
- the decision-making Agent and the decision it is authorized to make; and
- the latest useful date for that decision.
If the sentence alternates among a product, access, performed Work, capability, and an evidence episteme, the
decision still has several subjects. Split it or select the one result that changes the next commitment. If the
project system-of-interest, its actual or intended status, or its intended use remains unclear, return to
A.15.6, SYSE.1, SYSE.16, and SYSE.2.
The acceptance basis must be usable before arrangement generation. It can include several characteristics and thresholds; it need not reduce them to one score. State protected conditions and affected-System consequences that no arrangement may hide.
SYSE.24:4.2 - Generate complete ways of obtaining the result
Use the following six prompts to construct materially different arrangements:
- adapt or reuse an available System, capability, Method, or result;
- acquire a ready System and combine it with project integration, configuration, and assurance Work;
- commission provider Work that produces a custom result;
- obtain continuing provider Work, access, or operation under stated availability and recovery conditions;
- develop the result through Agents, Methods, and Systems within the chosen project boundary; or
- combine ready, provider, internal, and shared contributions.
For each applicable prompt, answer the eight common questions in §4.3 and write one whole possible-future
arrangement. Put only whole arrangements in the OptionSet. The same purchase relation can occur in several
arrangements; the same AI Agent can perform Work in internal, provider, or mixed arrangements; the same Method-
development branch can enable several options.
Apply C.18 only when the team also runs a named open-ended generation effort whose archive, Front, descriptors,
telemetry, lineage, or next governing relation must remain available. In that branch, identify the generation
Method and fill the applicable C.18 generation, archive, or Front record. C.18 preserves that search result; it
does not supply the domain Method for constructing an obtaining arrangement.
SYSE.24:4.3 - Describe every arrangement with the same questions
The following eight questions form the common comparison set. Answer a question only as far as it can change this comparison, but use the same basis for every option.
| Question | Required content |
|---|---|
| What result will exist or occur? | The result kind, identity or designator, acceptance claims, receiving use, configuration, horizon, and completion or availability condition. |
| Who does what? | Agents that may perform the named Work, applicable Methods, assignments and authority when relied on, and the Systems, data, tools, facilities, materials, and services participating in that Work. |
| How will the result be produced, performed, transferred, or made available? | Proposed production, transfer, custody, ownership, licence, access, provision, acceptance, or other relations. Use the specialist result that governs each relation when it changes the choice. |
| How will it fit and remain identifiable? | Interfaces, integration Work, configuration identity, effectivity, migration, interoperability, and any earlier engineering decision that an interface or integration failure would reopen. |
| What supports reliance? | Provider or builder capability, evidence for acceptance, assurance needs, uncertainty, unsupported claims, and one feasible next probe when it could change the choice. |
| What happens after first use? | Support, maintenance, updates, data and knowledge custody, replaceability, recovery, exit, and response to provider or technology change. |
| What capability changes? | Capability gained, retained, displaced, or made dependent on tools or providers for the named later Work. Use E.23.CDI or the Human Capability Development DPF when a capability-development decision becomes current. |
| What resources and consequences matter? | Relevant examples include time, money, scarce attention, capacity, risk, burden, benefit, and harm. Keep specialist results and affected Systems visible rather than folding them into one unexplained score. |
An unknown answer can remain unknown when it cannot change the choice. If it can reverse the choice, record it as the comparison defect and either obtain the specialist result or make it the subject of one bounded probe.
SYSE.24:4.4 - Restore parity before comparing
Apply the same five parity elements to every arrangement: acceptance conditions, operating environment, configuration boundary, evidence horizon, and burden categories. Assess ready demonstrations and internal-development options against representative project conditions. For a provider arrangement, count both the fee and the receiving team’s remaining Work, retained risks, and exit burden outside that fee. For internal development, include the opportunity cost, capability gap, assurance, support, and time until use.
Do not force unlike consequences into one weighted total when that would hide a protected condition or a non-compensable loss. Keep a tie-set or a partial order when the available evidence supports several non-dominated arrangements.
Apply C.11.CRC only when the missing input to arrangement comparison is what a finite proposed change
contributes relative to the project’s current configuration. Name the current configuration S0, the finite
change Δ, the realizable changed configuration S1, and the arrangement-choice decision that will use the
comparison. Work applying C.11.CRC returns only that configuration-relative contribution claim. It neither
constructs an obtaining arrangement nor chooses among arrangements.
SYSE.24:4.5 - Use specialist results without taking over their Methods
Use a specialist result only where it can change the comparison. Examples include:
- Strategy for the result’s contribution to a strategic choice and for option-set scope;
- Finance for funding, cash, valuation, and financial-risk claims;
- commercial and legal practice for offers, duties, remedies, rights, licences, and contracting;
- Governance or Administration for permission, accountability, tender, and public-procedure claims;
- Organization Change Engineering when the arrangement requires changing organizational structure, position responsibilities or decision rights;
- Operations Management for continuing demand, capacity, queues, allocating Work within an existing authorized arrangement, service, exceptions, and provider performance;
- Enterprise Asset Management for portfolio-level acquire, retain, modify, share, or retire decisions;
- Human Capability Development for a person’s capability-development programme; and
- safety, security, environmental, clinical, or other application practices for their acceptance and assurance results.
Assigning a new case to an already qualified performer under existing authority is an operating allocation. Changing an analyst position’s authority from preparing results to authorizing them changes the organizational arrangement. A needed capability-development result remains a separate contribution in either case.
The Systems Engineering comparison cites the specialist result it uses and preserves that result’s conditions. The responsible specialist practice and authorized Agent still supply such results as the contract form, spending decision, Work assignment, legal duty, or specialist assessment.
SYSE.24:4.6 - Choose, reject, probe, or reroute
Pass the completed OptionSet to C.11. State the DecisionSubject, comparison basis, ChoiceRule, and one
lawful ChoiceResult:
- choose one arrangement or a retained tie-set now;
- reject the current set and return to candidate generation;
- perform one feasible probe whose result can still change the survivor set; or
- reroute because a named realization, organization, finance, law, authority, or other question now governs the decision.
For a chosen or retained arrangement, identify its first unsupported realization branch and continue with
SYSE.3. The ChoiceResult is an episteme. Producing, performing, transferring, accepting, and using the sought
result still depend on the applicable Agents, Work, Methods, and direct relations.
SYSE.24:4.7 - Observe use and reopen the choice
Reopen when a changed premise can change the choice. Such a premise may concern result identity, acceptance,
provider or builder capability, an interface, configuration, evidence, a resource limit, support, an affected-
System consequence, or exit. A later provider failure can reopen the obtaining arrangement without reopening the
project system-of-interest. A changed project use can require a wider return to SYSE.1 or SYSE.2.
SYSE.24:4.8 - Record the first useful result
The written comparison and choice are usable when a reader can recover the following seven contents:
| Content | Minimum useful answer |
|---|---|
| decision | Decision-making Agent, authority boundary, decision date, and the commitment that the Agent may make for the project. |
| sought result | Actual kind, identity or designator, receiving use, configuration, horizon, and acceptance basis. |
| arrangements | At least two materially different whole arrangements, including their Agents, Work, Methods, means, provision or access relations, integration, assurance, support, capability, resources, and exit conditions far enough for parity. |
| evidence and gaps | Evidence used, unsupported claims, specialist results still needed, and affected-System consequences. |
| choice | One C.11 ChoiceResult and the basis that makes it lawful now. |
| continuation | First unsupported realization branch for a retained arrangement, or the named neighboring question that receives a reroute result. |
| reopen | Observations or changed conditions that can reverse the choice. |
SYSE.24:4.9 - What Changes in Practice
The engineering team stops comparing buy, build, outsource, AI, and reuse as if those words named equivalent options. It compares complete ways of obtaining one result. This exposes integration, configuration, assurance, provider dependence, internal capability, and exit before the commitment makes them expensive.