Allfusion ™ Plex Putting Patterns to Work

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Allfusion™ Plex Putting Patterns to

Work

Data Management and Application DevelopmentSession Code: DA480SN

Willem de Vries: Remia C.V.

Simon Jasperse: Kiboko


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Agenda

Introduction Positioning Allfusion Plex Patterns at Remia Weaving patterns: explanation and demo Some pattern-examples and their use Session Summary


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Introduction

Software Development at Remia– Development as main IS strategy– iSeries– Model-based Data-centric approach– Using 2E since 1990

Allfusion Plex– Modernization of user interface– Multi-platform support– Logical “next step” from Allfusion 2E– Great support for abstraction: Patterns


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Agenda

Introduction Positioning Allfusion Plex

– … model driven

Patterns at Remia Weaving patterns: explanation and demo Some pattern-examples and their use Session Summary


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Positioning Allfusion Plex – Model Driven

Model Driven Architecture: concepts Defined by Object Management Group Layered Models

– Platform Independent Model– Platform Specific Model– Code Model

Definable Transformations from model to model Based upon Model Object Facility


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Positioning Allfusion Plex – Model Driven (cont’d)

Model Driven Architecture: a picture


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Model Driven Architecture: status Important parts under development

– Transformation language not standardized– No Action language

Tool support– Mostly ‘stub’-generation– Tools often Platform Specific: Java


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Allfusion Plex and MDA Proprietary model

– Openness by Model-API and XML export

Platform Independence based on Variants Generation ‘based on’ Plex Meta language

– Websydian– Remia’s ‘early’ Model XML-export

Mature– Action Diagramming


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Plex: Advantage of Model Driven

Allfusion Plex delivers today

what MDA promises for a

distant future……


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Agenda

Introduction Positioning Allfusion Plex

– … pattern based

Patterns at Remia Weaving patterns: explanation and demo Some pattern-examples and their use Session Summary


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Positioning Allfusion Plex - Reuse

Reuse concepts in Software engineering– Modules: result of decomposition– Components: base for ‘re-’composition– Classes: inheriting properties and behaviour– Aspects: separation of concerns– Patterns: high level design experience


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Positioning Allfusion Plex: Aspects

Croscutting functionality– Logging– Tracing

Weaving implementation AspectJ for Java-implementation

– Currently submitted to Eclipse


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Positioning Allfusion Plex - Patterns

Originally ‘documentation’ of proven design– Erich Gamma, Martin Fowler, David Hay– Pattern-efforts mainly directed towards

‘cataloging’

Patterns mostly have structure and behaviour

Currently popular concept– Attention for process (POAD)– Support in development tools starting off


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Positioning Allfusion Plex – Patterns (cont’d)

Building blocks of Patterns in Allfusion Plex– Framework: Foundation– Multiple inheritance– Edit Points– Replacement– Meta Language

Weaving-mechanism resembling Aspect Orientation– Joining based on ‘structure’ and ‘naming’


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Weaving Patterns – Multiple Inheritance

Basic Entity

Upload Entity

Download Entity

.. is a ..

Gambling Profit

.. is a ..

Entity+Commit

.. is a ..


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Agenda



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Patterns at Remia

Restructuring of Base Layer– Separation of Logical and Physical datamodel– Explicit structuring of Replacement objects

Patterns ‘ by design ‘– Data-replication– User Managed Data– XML

Patterns ‘ by discovery ‘– Combobox– Work-management: Documentflow, Proces/activity


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Patterns at Remia – Example Structure

ListData

Data(format)

Characteristic

DataOwner

Characteristic_Data

Owner_ Characteristic

Owner_Data

RelationRelation

TypeRel_

RelType

RelType_Char


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Agenda

Introduction Positioning Allfusion Plex Patterns at Remia Weaving patterns: explanation and

demo Some pattern-examples and their use Session Summary


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Weaving Patterns – Requirements

Data Synchronization pattern Exchange data between platforms

– a-synchronous environment (off line account managers)

Data consolidation– handling data conflicts– match user (autonumber) keys

XML exchange– uses Remia XML pattern– isolate design changes from implementation


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Weaving Patterns – Design

Data Synchronization Pattern

Locaal Centraal

Fysiek

Upload

Download

Fysiek

<xml>data</xml>

DownloadDownload

Upload Upload

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

Download

Upload


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Implementing a Data Transfer Entity Impact on functions and Dbase Structure Meta coding to call all upload functions Example GamblingProfit is a Download & Upload entity

Weaving Patterns – Demo


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GamblingProfit is a Basic entity



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GamblingProfit is a Download entity


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GamblingProfit is a Upload entity


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Implementation Demo

Patterns at Remia– DataPattern Demo

http://pilat.free.fr/svgopen/


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Weaving Patterns – Design

Data Synchronization Pattern

Locaal Centraal

Fysiek

Upload

Download

Fysiek

<xml>data</xml>

DownloadDownload

Upload Upload

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

<xml>data</xml>

Upload


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Patterns at Remia - Results

Data Synchronization pattern Applied on 130 entities Ease of use and maintenance Exchange with external partners through

XML


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Agenda



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Patterns at Remia - Presentation Demo

SVG Demo

SVG viewer

Data Combo

Edit Detail

File Open

Use registryFetch wrapperSVG writer


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– Inherit from the pattern functions

– Connect the dots


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Scalable Vector Graphics Demo

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Patterns at Remia: Buiding SVG

Graph.svg

Database

Style.xsl

Data.xmlWriteXML

WriteSVG

ProcessingStyle

ProcessingStyle


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Agenda



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Session Summary

Flexibility and patterns– Balancing between developer and user– Weighing reusability and initial investment

Application building– Strong need for Impact Analysis– Huge number of objects

Practical results– Fast implementation when needed– Small team delivers


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References

Anneke Kleppe e.a.: MDA Explained, The model driven architecture: practice and promise

David S. Frankel: Model Driven Architecture: Applying MDA to Enterprise Computing

Sherif M. Yacoub / Hany H. Ammar: Pattern-Oriented Analysis and Design: Composing Patterns to Design Software Systems

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Questions & Answers

[email protected]

[email protected]


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Allfusion ™ Plex Putting Patterns to Work

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