Impact Analysis using Graph DB

Impact Analysis

Web Service and Cloud Integrations

GraphConnect London, 19/11/2013

11/04/2023 Archimiddle 2

SOFTWARE INTEGRATION

Integrating software

CUSTOMPOINT-TO-POINT

INTEGRATION

STANDARDS-BASEDPOINT-TO-POINT

INTEGRATION

SERVICE-ORIENTEDINTEGRATION

IMPACT OF CHANGE?

INTEGRATION THROUGH WEB SERVICES

What are (Web) Services?• Services

– Encapsulate • Business logic• Data logic

– Encourage code reuse– Are integration building blocks

• Service Parts– Implementation– Interface– Contract

Business logic Data logic

Service Oriented Architecture• Collaboration of many

services• Business process automation• Composite services• Cloud services

THIS LOOKS PRETTY

GRAPHY

The functional SOA Graph

The “soft stuff”

Who uses what, when and how?

Business process

Business activity

Service

Contract

Interface

Implementation

Service Usage Agreement

Service Level Agreement

:PLAYS_ROLE

:USES_SERVICE

:ACTS_IN:CONTAINS_ACTIVITY

:USES_SERVICE

:USES_SERVICE:OBEYS

:DEFINES_SLA

:DEFINES_ITF

:HAS_ITF

:HAS_CONTRACT :HAS_IMPL

:SUPPORTS_ITF

Building the functional graph requires custom user interface to maintain the soft entity relations

Service repository functionality

The technical SOA Graph

The “hard stuff”

The technical contract

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:RECEIVES :IS_DEFINED_BY

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Building the technical graph requires an automated tool

Service repository functionality

Concrete Resources

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

THE IMPACT OF AN EVENT

Impact of change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

CHANGE!

Impact of change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Impact of change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Impact of change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Impact of change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Impact of change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Impact of a small change

Interface

Namespace

Operation

Message

XML Schema

XML Element

XML Type

:IS_DESCRIBED_BY

:DEFINES_OPS

:NAMES

:REQUESTS

:DECLARES_ELEMENT

:DECLARES_TYPE

:DEFINES

XML Group

:USES:USES_ELMS

:USES_ELM

Impact can be large

Introducing Meteorite

Meteorite version 1.0

Build the technical graph

• Read the technical contract– WSDL– XML schema

• Parse it• Build the graph• Store the graph

– In embedded Neo4J

Perform impact analysis

• Pick a point of change• Traverse the graph “upward”• Build the “impact graph”• Make it available off-line

Test set: http://www.archimiddle.com/wp-content/uploads/2013/08/meteorite-test.rar

Meteorite version 1.0

https://meteorite.archimiddle.com/

Collection of WSDL and XML schema files

Step-by-step guide: http://ignazw.blogspot.be/2013/08/meteorite-test-set.html

Meteorite Practical Usage• Logon

– Google or LinkedIn account

• Upload data– Zip and rar supported

• Search the node you want to analyse– Go down the tree or use the search box

• Start the impact analysis– View or download the results

• Visual graph• Textual path data

Sample impact graph

To be changed

Impacted

SERVICE VERSIONING

A change in the service contract

API CHANGE

NEWSERVICEVERSION

Complexity: resource versioning

Interface

XML Schema

:IS_DESCRIBED_BY

:FIRST_VERSION

:CONTAINS

WSDL v1

WSDL v2

WSDL v3

:LAST_VERSION

:NEXT_VERSION :NEXT_VERSION

XML Schema v1

XML Schema v2

:LAST_VERSION:FIRST_VERSION

:NEXT_VERSION:USES_SCHEMA

:USES_SCHEMA

METEORITE ROADMAP

Meteorite Roadmap• Version 1.1

– Add automatic change discovery

• Version 1.2– Add versioning strategies

• Version 2.0– Add functional SOA graph

• User Interface• Resource API

• Version 3.0– Service repository

FINAL WORDS

Final words

A Graph DB is excellent for performing impact analysis of events on highly connected systems

Events can be anything: a change, a failure, an addition, …

Thousands of use cases exist

ContactIgnaz.Wanders@Archimiddle.com@ignazw

Impact Analysis using Graph DB

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