system integration for hemis (eai) - itcc-afghanistan.org · this presentation, represent the...

System Integration for HEMIS(EAI)

Ghezal Ahmad Zia

Technical University of Berlin

August 11, 2016

Ghezal Ahmad Zia (Technical University of Berlin) EAI August 11, 2016 1 / 43

Outline

1 HEMISProblem

2 What is System Integration?The Integration Problem (i.e. Opportunity)

3 EAI ArchitectureHub/SpokeBUS

4 EAI TypesData LevelUser Interface LevelMethod LevelApplication Interface Level

5 Conclusions


Forward

This presentation, represent the current situation of HEMIS,Development of 10 Modules of HEMIS by ITCC, SystemIntegration of HEMIS which mostly focus on which architectureand type of integration is feasible for HEMIS.


HEMIS

The HEMIS (Higher Education Management InformationSystems) was established in 2008.[IT Conference]

The goal of HEMIS is to improve management, data collection,and analysis.

Currently, two modules of HEMIS are functional.


11th IT Conference

On the 11th IT Conference, the concept of Module-baseddistributed HEMIS was presented.[IT Conference]


ACADEMIC

KANKOR

HEMIS

LMS

SMIS

Admtn

HR Private Universities

…


ACADEMIC

KANKOR

HEMIS

LMS

SMIS

Admtn


…

extended

.

.

.

.

.

.


ACADEMIC

KANKOR

HEMIS

LMS

SMIS

Admtn


…

extended

.

.

.

.

.

.

Scholarship Management

System


11th IT Conference

The ITCC (IT Competence Center of Afghanistan) starteddeveloping 10 modules of HEMIS recently.


Problem ...?


System development over the last 20 years has been tended toemphasize core functionality as opposed to integration [iConexio]

Many systems are highly stovepiped and difficult to integrate withother similar systems.


ACADEMIC

KANKOR

HEMIS

LMS

SMIS

Admtn


…


What is System Integration?


What is System Integration?

Definition

It is the combination of processes, software, standards and hardwareresulting in the seamless integration of two or more enterprise systemsallowing them to operate as one. [EAI]


The Problem

”70% of all code written today consists of interfaces, protocols,and other procedures to establish linkages among various systems”[IBM]

”30% of entire IT budget is spent on building, maintaining, andsupporting application integration” [FORRESTER]


The Integration Problem (i.e. Opportunity)

Definition

Multiple, disparate applications

CustomLegacyPackaged

Multiple platforms

Multiple databases

Multiple transaction processors

Multiple data entry points

Multiple versions of the same data

Incompatible business data


EAI

Enterprise Application Integration or EAI, is a technical termsince the early 2000.

EAI is an approach, or more accurately, a general category ofapproaches, to providing interoperability between the multipledisparate systems.


EAI Architecture

There are two basic architectures to achieve this.[EAI-Architecture]

HUB/SPOKEBUS


Hub/Spoke

Uses a centralized broker (Hub) and adapters (Spoke)

Spoke connect to application and convert application data formatto a format which Hub understands and vice versa.Hub on the other hand brokers all messages and takes care ofcontent transformation/translation of the incoming message.


Hub/Spoke

SMIS

AMIS DMIS

LMIS

PUMIS


Hub/Spoke

SMIS

AMIS DMIS

LMIS

PUMIS

HubMessageBrokerandCentral

Integra:onEngine


BUS

Bus architecture uses a central messaging backbone (bus) formessage propagation.

Applications would publish messages to bus using adapters.

These messages would flow to subscribing applications usingmessage bus.

Subscribing applications will have adapters which would takemessage from bus and transform the message into a formatrequired for the application.


BUS

SMIS


BUS

SMIS

Adapter-1+Integra1onEngine


BUS

SMIS


PUMIS


LMIS


AMIS


SMIS



BUS

Bus–MessagingBackbone

SMIS

Adapter-1+Integra:onEngine

PUMIS


LMIS


AMIS


SMIS



BUS

Bus–MessagingBackbone

SMIS


PUMIS


LMIS


AMIS


SMIS



EAI Types

EAI Types


EAI Types

•  DataLevel

01 EAI Types


EAI Types

+  Thedataismovedfromonedatastoretoanotherandprocessestheinforma2onifrequired.

+  Thereisnocodechangewhichsavesthecostofredevelopment.

•  DataLevel

01 EAI Types


EAI Types



•  DataLevel •  Applica-onInterfaceLevel

01 02 EAI Types


EAI Types

+  Thebusinessprocessanddataisaccessedthroughtheinterfaceswiththisapproach.

+  Thisapproachismostlyusedwiththepackagedapplica9ons.

+  Messagebrokersareusedaspreferredsolu9on




•  MethodLevel

01 02 03 EAI Types


EAI Types




+  Amethodcanbeaccessedbymanyapplica9ons.

+  Inthisapproachwereusethebusinesslogic,meansreusingtheexis9ngapplica9on.




•  MethodLevel

•  UserInterfaceLevel

01 02 03 04 EAI Types


EAI Types




+  Amethodcanbeaccessedbymanyapplica9ons.

+  Inthisapproachwereusethebusinesslogic,meansreusingtheexis9ngapplica9on.

+  Bundlestheapplica9onsusetheiruserinterfaces

+  Themainframeapplica9onscanbeaccessedthroughthisapproach.

+  Notpreferredapproach.




•  MethodLevel

•  UserInterfaceLevel

01 02 03 04 EAI Types


Integration on the Data Source Level [AI]


Integration on the Business Logic Level [AI]


Integration on the User Interface Level [AI]


Level of Integration [AI]


Conclusions

The current developed modules of HEMIS has been explained.

The integration architectures and levels defined.

The role of adapter and its complexity

The easy and suitable integration level are proposed for HEMIS.


References

IBM

FORRESTER

https://go.forrester.com/

EAI

Tariq Rahim Soomro & Abrar Hasnain Awan

Challenges and Future of Enterprise Application Integration

11th IT Conference

ZiiK-Report Nr. 41

, Page 20 - 21

8th IT Conference

ZiiK-Report Nr. 31

, Page 23 - 24

Heiko Paulheim & Florian Probst

Application Integration on the User-Interface Level

Atul Apte

Adapters and EAI

Anurag Goel

EAI vs. SOA vs. ESB


Thank You


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