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39 lines
1.0 KiB
Markdown
39 lines
1.0 KiB
Markdown
---
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title: Business functions
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draft: true
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---
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# Business functions
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- what the business ought to be doing
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- _not_
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- who, how, stucture, tech
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each business function becomes a set of features within an info system
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## 1 Id business functions
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- verb phrases
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- id what the business ought to be doing ⇒ e.g., "accept payment from customer"
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- id how => "we accept payments online banking and credit card"
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- always ask "what is the objective"
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- remove redundancies
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- model the id'd functions as _use cases_
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## 2 Use case
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"A list of actions defining the interactions betweeen a role and a system to achiece a goal"
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high level description of how people interact with a system
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story of how the business works
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should be:
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- simple
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- aimed at stakeholders
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- understandable by non-tech people
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- should use ubiquitous language
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- also useful for system devs
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can use text (Cockburn, fowler) or diagrams (function catalog, UML case diagrams)
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## 3 UML
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unified modeling language
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- use case - class - state - activity - sequence - deployment etc |