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External Interactions

System Context

Collectors

Customer s

Customer  Interface

Collector  Interface

Geospatial Library

Certification  Authority Interface

Customer Certification Authority

377

Capturing Interfaces & Links

includes (included in)

Interfaces: •Logical •Bi‐directional •Decomposable

joins  (joined to)

Component

Interface

comprised of (comprises)

connects (connected to)

includes (included in)

Links: •Physical

Link

We have established the  Items that cross the  Interfaces by allocating  Functions to Components

•Have capacity •Decomposable Items:

transfers (transferred by)

•Have size

Item

input to (inputs)

outputs (output from)

triggers (triggered by)

Function

Function

allocated to (performs)

allocated to (performs)

Component

Component

378