SAP_Overview

8/7/2019 SAP_Overview

1/22

University of

Southern California

Enterprise Wide Information Systems

SAP R/3 Overview &Basis Technology

Instructor: Richard W. Vawter


2/22

University of

Southern California

Topics

The R/3 Basis System Client/Server Architecture

Application Architecture

System Communication

Technical Architecture Client/Server Overview

Resource Management

Technical Configurations

Object Migration The Database Client


3/22

University of

Southern California

SAP R/3 Basis System

Sales

istri tion

aterials

mt.

Pro

tion

Plannin

Finan

ial

A

o

ntin

ontrollin

Fixe

Assets

mt.

Q

ality

mt.

Plant

aintenan

e

H

man

Reso

r

es

orkflo

In

stry

Sol

tions

R/3lient / Server

ABAP/4 Proje tSystem

Lo isti al Finan ial


4/22

University of

Southern California

Basis System: Three-Tier Computer ierarchy

Input / Output

of data to users

Access to Dataase:(Read / Write data)

Central Database(Storage of all data)

Database

Application

Presentation

Processing of data

using application logic

Presentation of the

processed data to

the user


5/22

University of

Southern California

Typical Basis Systems: Client Server Architecture

Central System

Two - tier

Distributed System

Two - tier

Client/Server

Three - tier

Client/Server

Multi-layer

Cooperative

Client/Server

(w/ release .0B)

Presentation Application Database


6/22

University of

Southern California

Basis System: Application Architecture

Windows 3.1, Windows 95, Windows NT, OS /Motif,

Presentation Manager, Macintosh

ABAP/ , C, C++

DB2/ 00

OS/ 00

Windows 95

OS/2

IBM

AS/ 00

AT&T Data General SNIBull/Zenith P Sequent

Compaq IBM Digital

ADABAS D, Oracle 7.1,

MS S L Server 6.0

Windows NT

UNIX systemsBull P SNI

Digital IBM SUN

AIX SINIX

P-UX SOLARISDigital UNIX

ADABAS D,

DB2, IN ORMIX,

ORACLE 7.1

ardware

Operating

Systems

Databases

Dialog

SAPGUI

Languages

Sold to party: C100

Item Material

ty

1 0 6 30 1 1 020 6

1 2 1 03 0 1 50 7 2 5

O r d e r


7/22

University of

Southern California

R/3 Communication / Interfaces

Remote

unction Call

Electronic Data

Interchange

Program Interface

CommunicationObject Lin ing

and Embedding

Application

Lin Enabling

Web

Interface


8/22

University of

Southern California

Topics

The R/3 Basis System Client/Server Architecture

Application Architecture

System Communication

Technical Architecture Client/Server Overview

Resource Management

Technical Configurations

Object Migration The Client


9/22

University of

Southern California

Client/Server Overview

Client

Server

LAN

TCP / IP


10/22


11/22

University of

Southern California

SAP R/3 Resource Management: The Dispatcher

Data base

Application

Presentation

BuffersWorProcess

Wor

Process

Wor

Process

Dispatcher

SAPGUI

Communications


12/22

University of

Southern California

SAPMemory Buffer

Relational data base system

SAPGUI

SAP R/3 Resource Management: Data low

Data base

Application

Presentation

Wor

Process

Dispatcher

Terminal

Process

Request queues

1

3

2

5

6

7

Roll

Page


13/22

University of

Southern California

SAP Dispatcher

SAP R/3 Resource Management: Wor Processes

1 2 3 4

5 6 7 8 9 10 11

12 13 1 4 15 16 17 18

19 20 2 1 2 2 2 3 2 4 25

26 27 2 8 29 30 31

1999

Bac ground Jobs

Spool

Enqueue

Dialog UpdateMessage

Sold to party: C100

Item Material

ty

1 0 6 30 1 10

20 6

1 2 103 0 1 50 7 25

O r d e r

Sold to party: C100

Item Material

ty

1 0 6 30 1 1020 6

1 2 10

3 0 1 50 7 25

O r d e r

Sold to party: C100

Item Material

ty

1 0 6 30 1 1 0

20 6

12 103 0 1 50 7 2 5

O r d e r

Sold to party: C100

Item Material

ty

1 0 6 30 1 1 020 6

12 10

3 0 1 50 7 2 5

O r d e r

M

Gateway

R/2

R/3

G

AB

C


14/22

University of

Southern California

SAP R/3 Resource Management:Loc Management by the Enqueue Wor Process

Wor

Process

Update

Wor

Process

Enqueue

Dispatcher

WorProcess

Update

WorProcess

Enqueue

Dispatcher

Loc table in

main storage

Message

Server

Instance A

Instance B


15/22

University of

Southern California

SAP R/3 Resource Management: R/3 Instance

Dialog . . . . Update SpoolBac -

groundEnqueue

Dispatcher

Database

Instance Message

Server

SAP

Gateway

Instance Profiles

(parameters)

SAP Buffers

Startor

Stop


16/22

University of

Southern California

SAP R/3 Resource Management:

Distributed SAP R/3 Processing

Dialog Update Enqueue Spool

Dispatcher

Mess-age

Gate-way

Instance 01

Enqueue Dialog . . .

Dispatcher

Instance 02

DialogBac -

groundEnqueue

Dispatcher

Instance 03


17/22

University of

Southern California

Technical Configuration

Development Testing Production

Database

Servers

Application

Servers

Presentation

Servers


18/22

University of

Southern California

Technical Configuration: E ample


19/22

University of

Southern California

Object Migration

Program A

Table A

Screen A

Program A

Table A

Screen A

Program A

Table A

Screen A

Development A Testing Production

Corrections and Transport


20/22

University of

Southern California

Object Migration

Program A

Version 1

Program A

Version 2

Program A

Version 3

Program A

Version 1

Program A

Version 2

Program A

Version 3

Originals

Development A TestingCorrections

and

Transport

?

?


21/22

University of

Southern California

The Client

R/3

America

R/3

Europe

R/3

Japan

America Client 010

Japan Client 030

Europe Client 020


22/22

University of

Southern California

Client Copies

Configuration

Development

Interface Testing

uality Assurance

User Training

SAP_Overview

Documents

Transcript of SAP_Overview