Semantic Requirements Engineering - Intentional Perspectives on Information Systems Engineering - page 79

Requirements Specification Implementation

(source codes)

Artifact Layer

Reusable
implementation
structure, e.g.
Architecture,
Framework,
Package

Fragments of
Requirements
Specifications

Unified ontology

Ontology Layer

Fig. 10 Semantic repository

Requirements

Case Frame

map &
instantiate

o t

a

Sentence

Actor Verb Object Source

Verb(a, o, t)

A lift goes up move(lift)

Requirements
(sequence diagram)

Case Frame

Scheduler Lift Door

x

move

move(lift)

1: request

Actor Verb

2: up

next

the same lift

3: arrived

4: stop

x

stop

stop(lift)

5: open

Actor Verb

Fig. 11 Using a case frame as an ontological concept