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• Each connection should– follow the common access rules (data protection)

– be traceable

– be coordinated

– be secure (data transportation)

– be reliable (operation)

– be effective

– be normalised

• Real complexity n(n-1)/2

Synchronisation of sources (SOS): N to N data exchange problem

1 2009-08-25

Practical processs patterns

Source 1

Source 2

Source 3

Source 4

Source 5

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• Coordination service provides – central coordination

– single source for common rules (data protection)

– audit trails

– operational visibility

• Real complexity 2(n+1)

Synchronisation of sources (SOS): N to N data exchange solution

2 2009-08-25

Practical processs patterns

Source 5Source 2Source 1

Coordination service

…

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SOS: Coordination process (between three sources – OCP, AFC, and DIP)

3 2009-08-25

Practical processs patterns

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SOS: Treat request for change process (within each source)

4 2009-08-25

Practical processs patterns

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Animation of a single change

5 2009-08-25

Practical processs patterns

DIP

Coordination service

…AFC OCP

Click for animation

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Animation of two interdependent changes

6 2009-08-25

Practical processs patterns

OCP

Coordination service

…AFC DIP

Mother

Kid

AFC_1 DIP_1

checking

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Initiation of change: implicit vs. explicit

7 2009-08-25

Practical processs patterns

OCP

Coordination service

…AFC DIP

Explicit initiation

Implicit initiation

OCP

Coordination service

…AFC DIP

Click for animation