University of Auckland · FACULTY OF INFORMATION TECHNOLOGY

INFOSYS 220 Chap.2 Business Cases and Feasibility

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Business Cases and Feasibility

Make the reason to act testable

A business case gives decision makers a disciplined basis for authorising investigation or investment. It separates the business need from the proposed feature, identifies stakeholders, states high level requirements, describes expected value and records constraints or special issues.

Persuasion depends on evidence: the case should compare acting with not acting, identify alternatives, state resource implications and define how success will be recognised.

Tangible value can be measured directly, while intangible value still needs a credible indicator rather than an untestable adjective.

Use feasibility as a comparative screen

Technical feasibility asks whether the necessary technology and capability can support the proposal. Economic feasibility compares expected benefits and costs.

Organisational feasibility considers strategic fit, stakeholder support, skills and change effects. Feasibility does not prove certainty. It exposes assumptions, risks and differences between alternatives so an approval body can decide whether to proceed, revise, defer or stop.

In this chapter

What this chapter covers

  • 01

    Business need versus proposed solution

  • 02

    Stakeholders, requirements, value and constraints in a business case

  • 03

    Tangible and intangible value with measurable indicators

  • 04

    Technical, economic and organisational feasibility

  • 05

    Alternatives, assumptions and risks of action or inaction

  • 06

    Evidence led recommendations for approval decisions

Worked example · free

Turn a queue complaint into a decision case

Q [8 marks]. AskSia authored practice. A faculty wants a chatbot because students wait for enrolment answers. Frame the need, one value measure and three feasibility questions without assuming the chatbot is the best solution. AskSia assigned these practice marks for business-case revision; they do not come from a University marking scheme.
Planning narrows uncertainty in stages.Planning narrows uncertainty in stages. Potential causes are validated, important causes are prioritised, and the response is tested through distinct feasibility lenses. peopleprocesstoolspolicy priority evidence technicaleconomicoperational
Planning narrows uncertainty in stages. Potential causes are validated, important causes are prioritised, and the response is tested through distinct feasibility lenses.
  • 2Rewrite the feature request as a business need.
  • 2Operationalise one expected value.
  • 3Ask technical, economic and organisational questions.
  • 1State a provisional recommendation.
The need is timely, accurate access to enrolment guidance during demand peaks. A value measure could be the median time from a student question to a verified answer. Technical evidence asks whether authoritative content can be integrated and updated; economic evidence compares total costs with other capacity options; organisational evidence tests ownership, escalation and staff acceptance. Recommend investigating the chatbot alongside a searchable knowledge base and staffing changes before selection.
Sia tip — A useful need remains true even if the preferred feature changes.
Glossary

Key terms

Business Case
An evidence based argument explaining why a change deserves approval and resources.
Business Need
The problem or opportunity that creates the reason to consider change.
Business Requirement
A high level capability or goal that an approved solution should satisfy.
Tangible Value
A benefit that can be measured directly in money, time, volume or another observable unit.
Intangible Value
A benefit such as trust or experience that requires an indirect but credible indicator.
Feasibility
A comparative judgement about whether an option can succeed within relevant constraints.
FAQ

Business Cases and Feasibility FAQ

Why not begin with the requested feature?

A feature is one possible response, while the need explains the outcome that matters. Beginning with the feature can hide cheaper or safer alternatives and make success impossible to judge independently. A sound case preserves the need, then compares options against evidence and constraints.

Does economic feasibility require only a return figure?

No. A financial indicator can support the case, but assumptions, timing, uncertainty, recurring costs and nonfinancial value also matter. Decision makers need to understand what creates the estimate, which benefits can be measured and how the option compares with doing nothing or choosing another response.

How can intangible value be assessed?

Choose an observable proxy linked to the value claim. Trust might be explored through complaint themes, repeat use or a carefully designed survey. The proxy should have a collection method, baseline and review period. Calling a benefit intangible does not excuse vague or circular measurement.

What makes a recommendation persuasive?

A persuasive recommendation states the need, decision criteria, evidence, material assumptions, risks and alternatives before explaining why one option fits. It also states how success will be measured. Confidence should match the evidence; unresolved feasibility questions should appear as conditions or next investigations.

Study strategy

Exam move

Practise business cases by banning solution words from your first draft. Take three feature requests and rewrite each as a problem or opportunity with an affected stakeholder and observable consequence. For one case, create five headings: stakeholders, need, high level requirements, value, and constraints. Under value, write one direct measure and one indirect indicator with a baseline and review time.

Then build a feasibility matrix with technical, economic and organisational columns. Place evidence, assumptions and unknowns in separate rows so an optimistic guess cannot masquerade as fact. Compare at least three alternatives, including doing nothing for a defined period. Write a recommendation that uses the same criteria for every option and includes a condition for the weakest evidence area.

Review the recommendation backwards: can every claimed benefit trace to the need, and can every major cost or risk trace to an option? For timed practice, explain in four sentences why a requested tool is not itself a business need. Then add the strongest counterargument for your recommendation. This trains balanced persuasion instead of promotional writing.

Before submitting assessment work, check the current brief for required sections and ensure any generative AI assistance is evaluated rather than accepted as evidence.

Working through Business Cases and Feasibility in INFOSYS 220? Sia is AskSia’s AI Information Technology tutor — ask any INFOSYS 220 Business Cases and Feasibility question and get a clear, step-by-step explanation grounded in how INFOSYS 220 is taught and assessed. Read this chapter free, then take your hardest questions to Sia.

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