SAP Technical Overview.ppt

7/29/2019 SAP Technical Overview.ppt

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SAP System Architecture



SAP System Architecture

Database Server

M

SAP Application Server(SAP Instance)

Oracle

Informix

DB2

MS SQL Server

MAX DB

G

Dispatcher

Queue

D D B V S E

SAP Buffer(Shared Mem)

SAP GUIDIAG

Dispatcher Queue

ICM

Memory Pipe

SAP Web AS Java

Web Browser

HTTP, HTTPS

SMTP, SOAP, XML, … Web



SAP Installation Concept



SAP Installation Concept • Install Oracle RDBMS

• Install Central Instance (SAP Application

Server)

• Install Database Instance

• Install SAP GUI



1.Install Oracle RDBMS



Install Oracle RDBMS



2.Install Central Instance



Install Central Instance



3.Install Database Instance



Install Database Instance



4.Install SAP GUI



Install SAP GUI



SAP Architecture Overview



SAP System Configuration

Application Application

Database Database

Presentation Presentation

Database , application , presentation processes

One - tier configuration Two - tier

configuration Three - tier configuration

Presentation processes

Database , application processes

Database processes

Application processes



SAP System : Central Instance

SAP Application Server (Central Instance)

M

G

Dispatcher

Queue

D D B V S E

SAP Buffer

Roll Area

ProgramBuffer

TableBuffer

…

…



SAP System : Dialog Instance

SAP Application Server (Dialog Instance)

G

Dispatcher

Queue

D D D D

SAP Buffer

Roll Area

ProgramBuffer

TableBuffer

…

…

D D



SAP Instance

Dispatcher

D D D …

Dispatcher

D …

Dispatcher

D D B … V E S …

M

D B

Dialog Instance A Dialog Instance B

Central Instance



Work Process Types

D = Dialog

B = Background

V = Update E = Enqueue

S = Spool



SAP System

• SID = System Identifier

• System Number

Three-tierconfiguration

Databaseprocesses

Application processes

000

001066

System Client

SAP*/06071992DDIC/19920706

earlywatch/supportSAP*/06071992

Standard User

00, 01,… port 3200

00 by default

Monitored by SAP



SAP System : Client

000

001

066

800

Client Copy

SAP S t L



SAP System Logon



Data in SAP System

1. Client-dependent Data

(Client-Specific)

2. Client-independent Data

(Cross-Client)

User Master

Customizing

Application

Master

Transaction

Customizing

Repository

≈ 90 tables

configurations ≈ xxxx tables

≈ xx,xxx tables

e.g. printer

ABAP programs



SAP System : Application Modules

SAP Client / ServerABAP

FIFinancial

Accounting

COControlling

AMFixed Assets

Mgmt.

TRTreasury

WFWorkflow

ISIndustry

Solutions

MMMaterials

Mgmt.

HRHuman

Resources

SDSales &

Distribution

PPProductionPlanning

QMQuality

Manage-ment PM

Plant Main-tenance

System Landscape



System Landscape

DEV

CUST DEVL

QAS

QTST PRD

PROD

Common Shared Directory

UTST

SAND TRAN

Unit test

Write ABAP

programTest data

Manage master configuration

transport transport

Training client

Quality Testing



SAP System : Dialog Processing

Database Server

SAP Application Server

Dispatcher

RequestQueue

D D D D…

SAP Buffer

Program

Roll Area

1

2

3

4

56

7

8

Report ztest.

Tables customers.

Select single * from

customers where id = 1.

Write: / customers-name.

…



Work Process Architecture

TaskHandler

DYNPRO Processor

ABAP Processor

Local Memory

Memory Space

DB Interface

List buffer

Database Server

Result Set

Dialog Work Process

Receive inputfrom screen

Receive input from ABAP program

Change Open SQL

statement toDB statement



SAP Web AS Technology

SAP W b A li ti S



SAP Web Application Server

• The SAP Web AS is an open, scalable, and

high-availability infrastructure for developingdynamic and company-wide Internetapplications

• It is a server based on the well-known SAP

Application Server technology, with theadditional enhancement of Web functionality

• The SAP Web AS is the new technological basisof all mySAP Business suite solutions. It is alsothe core element of the SAP R/3 Enterprisesystem – the successor to the classic SAP R/3

SAP W b AS R l



SAP Web AS Release

• SAP Web AS 6.10 – ICM

• SAP Web AS 6.20 – ICM, J2EE

• SAP Web AS 6.30 – ICM,J2EE + Eclipse,Web Dynpro

• SAP Web AS 6.40

– ICM,J2EE + Web Dynpro + Integrated ITS• SAP Web AS 7.00

– Oracle 10g …



SAP GUI for HTML

http://<SAP Instance>:<ICM port >/sap/bc/gui/sap/its/webgui/!

SAP Technical Overview.ppt

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