ati0 - Kontrak - Silabus [Compatibility Mode]

• Web Services: Conce ts Architectures and

Referensi

• Service-Oriented Architecture: Concepts, Technology, and Design by Thomas Erl, Prentice Hall PTR, 2005

• Web Services: Concepts, Architectures and,p Applications, by Gustavo Alonso, Fabio Casati, et. al, Springer, 2004

• Information Architecture for the World Wide Web, 2nd edition, Louis Rosenfeld, Peter Morville, 2002

http://bcs.wiley.com/he-

ReferensiReferensi

• Turban, Leidner, McLean, Wetherbe, Information

Technology for Management: Transforming

Organizations in the Digital Economy, 6th Edition,

John Wiley & Sons, Inc., 2008

Ed 6: http://bcs.wiley.com/he-bcs/Books?action=resource&bcsId=3687&i temId=0471787124&resourceId=10289

Ed 4: http://gigapedia.com/items:links?id=408094

Ed 7: http://as.wiley.com/WileyCDA/WileyTitle/pr oductCd-EHEP000232.html

http://bcs.wiley.com/he-

ReferensiReferensi Business PrB oco ese s &s SAS Pusiness Pr c s & AP

• Simha R. Magal & Jeffry Word, Essentials of Business Processes and Information Systems, John Wiley & Sons, Inc., 2009

• Link:

http://bcs.wiley.com/he-bcs/Books?action=index&itemId=0470230 592&bcsId=4455

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Outline SAP

• Introduction + Navigation (1)• Systemwide Concepts (1) • Human Resources (1) • mySAP Technology (1)

– Client Server Architecture– The Database

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Q & A

ATI - Overview

anton@ukdw.ac.id

Physical Architecture

Four Components of a Computer System

Tightly coupled

Loosely Coupled

Client/Server

• In general, any application where multiple

clients connect to a single server.

client1 client2 client3

server

• one client program (most typical)

or

• multiple client programs

Generic Client/Server Architecture

– May each act as client, server or both

Peer-to-Peer Computing

• Another model of distributed system

• P2P does not distinguish clients and servers

– Instead all nodes are considered peers

– May each act as client, server or both

– Node must join P2P network

• Registers its service with central lookup service on network, or

• Broadcast request for service and respond to requests for service via discovery protocol

– Examples include Napster and Gnutella

–

What is Cluster ?

• A cluster is a type of parallel and distributed processing system, which consists of a collection of interconnected stand-alone

computers cooperatively working together as a single, integrated computing resource.

• A node

– a single or multiprocessor system with memory, I/O facilities,a single or multiprocessor system with memory, I/O facilities, & OS

• A cluster

– generally 2 or more computers (nodes) connected together

– in a single cabinet, or physically separated & connected via a LAN

– appear as a single system to users and applications

(Single System Image and Availability Infrastructure)

Parallel Applications

Cluster Architecture

Sequential Applications Parallel Programming Environment

Cluster Middleware

Sequential Applications

Sequential Applications

Parallel Applications

Parallel Applications

(Single System Image and Availability Infrastructure)

Cluster Interconnection Network/Switch

PC/Workstation

Network Interface Hardware

Communications

Software

PC/Workstation

Network Interface Hardware

Communications

Software

PC/Workstation

Network Interface Hardware

Communications

Software

PC/Workstation

Network Interface Hardware

Communications

Software

Grid Architecture

Client-Server Com utin , and the web

What is Cloud Computing ?

the Fifth Generation of Computing

(after Mainframe, Personal Computer,

Client-Server Computing, and the web)g )p

Cloud Computing is…

… virtualized compute power and storage

delivered via platform-agnostic infrastructures

of abstracted hardware and software accessed

over the Internet.over the Internet.

These shared, on-demand IT resources, are

created and disposed of efficiently, are

dynamically scalable through a variety of

programmatic interfaces and are billed

variably based on measurable usage….

Internet & Web Architecture

• Using TCP port 80 (default)

Protokol Web: HTTP

• Hypertext Transport Protocol (RFC 1945) – Oleh Tim Berners-Lee, 1990

• Protocol that used to communicate between web browsers and web servers

• Using TCP port 80 (default)

• This protocol supports hypermedia files

• HTTP 1.0 becomes 1.1 by IETF (RFC 2616)

HTTP Message

Application-specific components

N-tier web architectures

HTML rendering

Templates, HTML generationscripts, XML and XSLT

Client

Presentation

Business Logic

Data Access

Data

Application-specific components and application logic

Domain-specific and database-independent layer,

typically object-oriented

Data storage, typically an (SQL) RDBMS

serv ce-or en e arc ec ure s a ramewor

Service Oriented Architecture

• SOA adalah sebuah konsep Software Architecture yang mendefinisikan penggunaan layanan untuk mendukung kebutuhan pengguna software.

• AA servicei -oriented architecture is a framework i t d hit t i f k• for integrating business processes and supporting IT infrastructure as secure, standardized components—services—that can be reused and combined to address changing business priorities

SOA dan Integrasi Aplikasi/Sistem

• SOA sebagai platform integrasi:

– SOA memisahkan antara pesan/query/call dengan pemrosesan

– Pesan/query/call distandardisasi dan tidak dikaitkan dengan

sebuah produk teknologi tertentu, sehingga bisa

dikirimkan/diterima oleh siapapundikirimkan/diterima oleh siapapun

– SOA memisahkan antara bagian publik dan bagian privat

• Bagian publik dapat diakses oleh siapapun, berupa deskripsi

tentang layanan yang ditawarkan

• Bagian privat hanya bisa diakses oleh pemilik/penyedia layanan

SOASOASOASOA• Services can be discovered

Characteristics of SOA

• Services have platform

independent, self describing

interfaces (XML)

• Messages are formally defined

• Services can be discovered

• Services have quality of

service characteristics defined in

policies

• Services can be provided on any

platform

ComposableComposable

SOASOASOASOAInteroperableInteroperable

LooselyLooselyCoupledCoupled

ReRe--UsableUsable

(aplikasi yang menggunakan data/service) dan service

SOA implementation : Web Service

• Mempertukarkan data dalam format XML.

• Tersedia dan dikomunikasikan melalui Internet atau intranet.

• Bersifat operating system/programming language independent.

• Web service mempertukarkan data antara service requestor (aplikasi yang menggunakan data/service) dan service provider (server penyedia data/service) menggunakan service registry (yang berisi kumpulan service-service), dengan salah satu teknologi:

– XML-RPC

– SOAP

– REST

erv ce scovery

Web Service Layer

• Service transport

• XML messaging dan encoding/decoding

• Service description

•• S i di Service discovery

• SOAP meru akan format untuk men irimkan

SOAP (Simple Object Access Protocol)

• SOAP merupakan protokol komunikasi berbasis XML yang memperbolehkan aplikasi saling bertukar informasi melalui HTTP

• SOAP merupakan format untuk mengirimkan gp message melalui Internet, bersifat platform independent, language independent, dan merupakan standar W3C

• SOAP membungkus request & response dalam XML

(wajib)

Elemen SOAP

• Elemen Envelope yang mengidentifikasi XML dokumen sebagai SOAP message (wajib)

• Elemen Header yang berisi informasi header (opsional)

• Elemen Body yang berisi informasi call dan response (wajib)

• Elemen Fault yang berisi informasi error yang terjadi (opsional)

• Conceived in 2000 as a doctoral dissertation b Ro

What is REST?

• REST stands for Representation State Transfer

• REST is about accessing resources through a

universal interface (HTTP murni)

• Conceived in 2000 as a doctoral dissertation byy Royy

Fielding (a principal author of HTTP 1.0 dan 1.1

protocol)

• RESTful URLs are addressable

– Sample: http://www.mysite.com/Products/Trek8300

• Links to related data

RESTful Web Services

Resources

Res 1

Res 2

HTTP Request

GET Res 2

Res 3

Res 4

HTTP Response

Status

GET

POST

PUT

DELETE XML JSON

Payload

XML JSON

URL

Business Process and IT in

enterprise

–

Business Process

• Organization creates & deliver value in the

form of a product or service, which they offer

to customers or organizations

– TTangibleangible: product physics: product physics

– Intangible : service, such as education, health,

information, financial services

• Business Process: sequence of activities that

produce some output / outcome

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Functional organizational

ecara usus

E-Commerce

• Penggunaan media elektronik untuk melakukan perniagaan / perdagangan

– Telepon, fax, ATM, handphone, SMS

– Banking: ATM phone banking, internet banking

• SSecara khusus • kh

– Penggunaan Internet untuk melakukan perniagaan

– Ada transaksi

• E-Commerce dimulai sejak 1970-an

• Pure EC (cth: e-book) vs Partial EC (cth: book)

The Structure of E-Commerce in

Enterprise

A framework for E-commerce

Copyright 2010 John Wiley & Sons, Inc. 6-33

mySAP Procurement

Production in SAP

Sales Order in SAP

HR Management

Web 2.0 and Mobile Computing

architecture

Web 2.0 Framework

The Seven Key Principles

40

Landscape of Mobile Computing

Mobile Computing – L-Commerce Applications

Next

• Server Architecture