Syed Anwar Aftab Senior Member of Technical Staff AT&T Labs Building Enterprise-Class E-Business...

Syed Anwar AftabSyed Anwar AftabSenior Member of Technical StaffSenior Member of Technical StaffAT&T LabsAT&T Labs

Building Enterprise-Class E-Business Building Enterprise-Class E-Business Systems Using Oracle9Systems Using Oracle9iiAS: A Case StudyAS: A Case Study

Session # 36281

September 7- 11, 2003. San FranciscoSeptember 7- 11, 2003. San Francisco

2AT&T Proprietary - Use Pursuant to Company Instructions

Agenda Introduction

Presentation Objectives

Business Needs

System Overview

Technology

System Demonstration

Summary

Next Steps

Questions & Answers


Introduction

Who we are :

Management Systems Center: AT&T Labs

Support AT&T Business Units - ABS, Labs, Consumer

Business Analysts, Systems Analysts, Developers, IT Architects, DBA, System Administrators

Turn Key Systems Development & Hosting– OLTP/OLAP

– Data Mining, Systems Research

– Workflow Systems

– Monitoring & Control Applications, DSS


Presentation Objectives

Case Study: Business Problem

Using Oracle9iAS and Oracle9i Database for Enterprise e-Business Application Development

Architecture Design and Frameworks

Open, Scalable and Reliable Applications

Lessons Learned/Key Recommendations

Tips for using Oracle9iAS


Business Needs

Single Point of Access for Sales Agents

End-to-End Sales Management Application

Reduce Operations Cost, Increase Sales and Profit Margins

Streamline Sales Process, Eliminate/Reduce Manual tasks

Improve Process Efficiency

Enhance Internal & External Communication

Empower Sales Employees and Vendors

Online Support and Education

Simplified Administrative Procedures

Improve Accuracy


Business NeedsSystem Should be :

Secure : granular, flexible, dynamic security

Scalable, Robust and Reliable

Highly Available

Access to real-time data: Integrate seamlessly into the back-end systems and other e-business applications

Reports and Alerts : On demand, scheduled, event-based

Easy to use / Minimal or No training required

Easy distribution of content

Roles Based Access Privileges

R e s u l t


System Overview - Functionality

Leads/Opportunity Workflow

Sales Management and Order Tracking

Agent Recruiting and Tracking

Product Pricing and Provisioning

Product Training

Commission Processing

Revenue Reporting and Forecasting

Information Bulletin Board

Sales Channel Management

Internationalization - Multilingual Interface including English and Spanish


System Overview - Functionality

Leads Creation

Leads Prioritization

IntelligentLead

Routing

OrderFulfillmentTracking

Leads Enrichment

LeadAlert/

Tracking

Sales Compensation

Pricing Support

Proposal Preparation

ContractPreparation

Marketing effectiveness

Marketing Events

Sales Management Process

Revenue

Sales


System Overview - Background

Project Started June 1998

1st Release October 1998 on OWS 1.1 and Oracle 7.3 DB

Latest Release Nov 2002 on Oracle9iAS and Oracle9i (Release 2)

Browser based - Thin Client Architecture

WAP(Wireless) and IVR/ASR(Speech) Capabilities

Separate OLTP and OLAP Production Systems

Use of Rules Engine for Sales Management

20,000 Internal and External Users

200+ Online Screens

Integrated with over 10 internal and external systems including Marketing, Advertising, Billing, Provisioning, Acquisition, Pricing, Commissioning and Compensation

18 Types of System User Roles and Access Privileges


PSTN

SMTPServer

SMTP

ApplicationUser’s

Mailbox

ACT

ReportingServer

Oracle9iAS

Application ServerOracle9iAS

Oracle9i OLTP DB

Oracle9i OLAP DB

Voice XMLBrowser

HTTP

JDBC/SQL Net

JDBC

Order, Provisioning,Inventory, CRM Apps

TradeshowApp

AlertsNotification

(SMS)

Wireless Users

IVR Users

HTTP

SQLNet*HTTP/XML

PSTN1 2 3

4 5 6

7 8 9

* 8 #

PSTN

Multipart Mime Msg

HTTPWAP

HTTP

HTTP

HTTPS

FAX Alert/Notification

High Level System ArchitectureHigh Level System Architecture

XML

SQL Net


System Upgrade Lifecycle

Start

June 98

OWS 1

Oracle 7.3

1st Release

Oct 98

OAS 2

Oracle 8

March 99

OAS 4

Oracle 8i

Feb. 2000

OAS 3

Oracle 8i

Aug. 99

8 iAS

Oracle 8i

Nov 01

Oracle9iAS

Oracle9i

Nov 02

Almost no changes required in PLSQL code

Major enhancements in server configuration and administration

Oracle9iAS Key Features – PL/SQL Server Pages, Apache, Web Cache, J2EE, BI Beans Reports


Technology – Software/Tools

N-Tier Web Based Distributed OLTP and OLAP Systems

Frameworks

– PL/SQL MVC Framework (Custom Developed)

» Oracle9iAS, Oracle9i RDBMS, PL/SQL Server Pages, PL/SQL Packages

– J2EE MVC Framework

» JSP, Servlets, Java Beans, XML

Thin Client Application

– No Plug-ins

– Easy Deployment: Browser based, HTML, JavaScript, CSS

– Centralized Access -- Scalability, Portability

– 24X7 Availability



Languages

– PL/SQL (Packages, Procedures, Functions)

– Java Beans, JSP 1.1, Servlets 2.0

– CGI : Perl, Pro C, Shell Scripts, AWK

– HTML, HDML, XML, WML, Voice XML, JavaScript

– PDF document generation (ps2pdf)



Servers/Tools– Application Server

» Oracle9iAS

– Java 2 Development Tools

» Oracle9i JDeveloper, Borland JBuilder, JFreeCharts

– Database

» Oracle9i RDBMS

– Database Development Tools

» Oracle Enterprise Manager, DBA Studio, SQL Navigator, TOAD PL/SQL Developer, ER Win

– IVR

» AT&T Natural Voices, TTS, VoiceGenie VXML & ASR

– Testing Tools (Regression/Load Test)

» Empirix e-TEST, Web Stress Tool, WebPerformance


Technology – Production Setup

AT&T Internet Data Center in Alpharetta, GA

24X7 Availability and Support

Secure Extranet/Firewall and Internal VPN Access

HP rp8400 Rack Server– 8 CPUs (750MHZ)

– 8 GB Memory

– 500 GB disk space

– HP Unix 11i


Production System ArchitectureProduction System ArchitectureApplication ServerOracle9iAS Release 2

HP rp8400

Web Server

• HTML• HDML• WML• Images• SSL• Session mgmt

Application Server

• Application logic• DB connection• Java Services• Session mgmt• Authentication• Content mgmt• Communications• System linkages• Work flow• Business rules

Database ServersOracle9i

HP rp8400HTML/XML

https (SSL)

Intranet Client(Netscape 4.0 or higher

IE 4.0 or higher)

SQL Net/JDBC

• HTML• Javascript• Data validation• App Navigation• Cookies

Internet

Browser Clients

1 2 3

4 5 6

7 8 9

* 8 #

SQL Net

OLAP Server

OLTP Server

FAX/IVR

IVR/ASR

SMS

WAP

Internal/External DB

IVR Server VoiceGenie/Dialogic

VXML


System Usage

Average Daily User Sessions

0

500

1000

1500

2000

2500

19992000

2002

2001

2003


System Usage

0

200000

400000

600000

800000

1000000

1200000

1400000

1600000

1800000

2000000

1 2 3 4 5 6 7 8 9 10 11 12

Avg. Monthly Hits


Work Flow

Customizable Home Page

Top Navigation


Key Recommendations Database Intense Applications Should Optimize :

– Data Model, Design & Structure

– SQL’s: Syntax, Correct Use of Optimizer, Hints, Joins, Indexes, and PLSQL

– Oracle9i DB: Separate Table space for indexes and data, Correct Table Partitioning, Use of Materialized Views, bitmap indexes, Summary Tables, Correct Size for Shared Pool and Max Open Cursors

– Analyze tables/indexes : dbms_stats.gather_schema_stats

– DB Connection Pooling

Test and Test !! If you don’t, your users will

– Load Test – assume the worst case scenario

– Scenario/Case Test, Exceptions Test

Upgrade to Latest Release of Oracle9iAS – Minimize patches

Have identical environments in development, QA and production

Upgrade RAM first -- then Hardware


Oracle9iAS PLSQL Tuning

Pin most used procedures, functions, packages

Caching PL/SQL calls greatly improves performance

Eliminates additional network round trips and calls to the database server

Can be invoked by making calls to the OWA_CACHE package

Single Sign-on Cookie Cache

Always Package procedures/functions together

DAD Connection Pooling


Oracle9iAS Configuration

Get More Memory– More Memory = More MOD’s

– 1 GB At least for Production Servers

Reduce Logging Level – Reduce CPU & I/O Cost– Only Log Errors

Reduce Oracle 9iAS Directory Depth – Reduce Security Checks

Update httpd.conf Default Settings– HostNameLookup off

– Options FollowSymLinks rather than SymLinksIfOwnerMatch

– AllowOverride none

– MinSpareServers, MaxSpareServers

– MaxClients

– Disable unused MODs

Increase “timeout” and “retry” configuration in Apache– zone.properties: servlet.page.initArgs=requesttime=60

– JServ.conf: ApJServRetryAttempts 30, ApJServVMTimeout 20


Always Use an Application Framework

(9iAS Does it for you) Enforce standards in organization

Achieve repeatable and consistent design and development process

Manage code complexity of large scale applications

Provide coding discipline

Avoid recurring design problems

Enable distribution of modules for parallel development

Build core competency

Reduce maintenance costs


Oracle9iAS Best Features

If you developed using OAS, you’ll really appreciate many of the enhancements that were added to Oracle 9iAS.

Enhancements (beyond significant performance improvements) include:

– De-authentication

– New/Changed CGI Parameters

– PL/SQL Server Pages

Oracle9iAS Web Caching– Reducing load at the origin server

Oracle9i Real Application Clusters (RAC)– Increase Capacity, Availability and Scalability

Cache clustering– Increasing cache capacity and number of concurrent requests

Oracle9iAS Web Cache: Enterprise Solution for High-Availability & Performance

AT&T Proprietary - Use Pursuant to Company Instructions

What is Oracle9iAS Web Cache?

Oracle9iASWeb Cache

Web App Servers

DatabaseClient

Browser

Network

Part of Oracle9i Application Server Deployed between clients and origin servers Accelerates static and dynamic content Reduces load on origin servers Improves application availability and reliability


Key Features of Oracle9iAS Web Cache

• Full-page Caching with Simple Personalization

• Partial-page Caching and Personalized Content Assembly (ESI)

• Invalidation and Performance Assurance HeuristicsAutomatic Content Compression

• Web Server Load Balancing and Failover

• Cache Clustering

• Hierarchical / Distributed Caching and Page Assembly (eCDN)

• Integrated with Oracle Tech Stack: 9iAS, 9iDB, 11i Apps, OEM

• Compatible with 3rd-party application servers and databases


Improve Reliability Using Caching

Any Data Source

Servlet / JSP

Perl

PL/SQL

Portal

Wireless &Mobile

Browser

– Serves Dynamic and Static Content Faster– Supports more users with fewer web servers / less hardware– Higher reliability with surge protection and loadbalancing

Ap

ach

e

Web

Cac

he

Any Application / Web Server

Internet / intranetUsers

Source: Oracle9iAS Product OverviewSource: Oracle9iAS Product Overview


Future Enhancements

Use Oracle9i Real Application Clustering (RAC)– Increase Availability, Scalability and Performance

Oracle9iAS Web Cache Clustering: Enterprise Solution for High-Availability & Performance

Oracle BI Beans for OLAP & Data Mining Needs

Oracle9iAS Portal


Summary The pace of business has changed, quicker responses in

technology solutions are required. Constantly Moving Targets: keep up with the “real world”,

adapt and deliver change. Approximating complexity and timelines are critical Team Work : It’s all about the team Build Elasticity into timelines and design Details are important -- proactively analyze business rules

and “exceptions” Rapid deployment of High-Performance Dynamic

Applications is critical

Always start with a simple application

Follow process & Enforce discipline

Framework is not a panacea


Summary

9iAS Simplifies Developing Oracle DB Apps

9iAS Makes Oracle DB Apps Reliable

9iAS Lowers Total Cost of Ownership


Next Steps Recommended sessions

– 36492 Oracle9iAS Tuning Techniques

– 40062 Oracle Application Server Integration: Overview and Vision

– 40282 Oracle Application Server 10g: Simplifying MIddleware Complexity

Recommended demos and/or hands-on labs– 40377 Oracle Application Server 10g Hands On Lab

– Visit Oracle 9iAS DEMOgrounds

Relevant web sites to visit for more information– http://www.att.com/attlabs/

– http://technet.oracle.com

– http://metalink.oracle.com


AQ&Q U E S T I O N S & A N S W E R S


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Syed Anwar Aftab Senior Member of Technical Staff AT&T Labs Building Enterprise-Class E-Business...

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