ibm i ad product strategy and focus areas

IBM Software Group | AIM

IBM Confidential

IBM i AD Product Strategyand Focus Areas

IBM i AD Solution TeamStrategyMar 23, 2009

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Agenda

Do not leave customers behind

– The 1980’s, 1990’s and the new Millennium Application scenarios

– What are the problems our customers are facing Defining the strategy? Implementing the strategy: IBM Implementing the strategy: You Summary

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Do Not Leave Customers BehindThe 1990’s New Millennium

ILE: Smaller, reusable programs

iSeries

PublicWeb service

(trusted)

Web service(untrusted)

IBM i

Client/Server

The 1980’s

Large, monolithicRPG programs

AS/400

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1980’s: The Good Old Days (“Good Times”)Why do we love RPG and COBOL so much!

Developing business applications was simple– All you needed was OS/400, RPG, and ADTS

• Security

• Transaction processing

• Record locking

• Database I/O

• User Interface

• Printing

• ICF

RPG– Simple applications written with only a few lines of code

– Tight integration of the language to the OS

– Focus on business rules

– Very easy to learn

Large, monolithicRPG programs

AS/400

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1990’s: ILE

– Move to better programming structure

• Modular programming Code reuse via procedures Service programs

• New languages

• Made Model/View/Controller possible

• New OS Activation groups

Better control over resource management Binding directories

Client server (Visual Age products, Visual basic, ASNA)– Leveraging Workstation capabilities

• Graphical user interface

• Local OS capabilities

– Offloading cycles from the server

– Working disconnectedb

ILE: Smaller, reusable

programs

iSeries

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New Millennium: New Realities

Internet– User interface

• Web Browser

– Application Integration

• Web services

– Multi-platform (depends on who you talk to)

– Many different languages

PublicWeb service

(trusted)

Web service(untrusted)

IBM i

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Agenda



– What are the problems our customers are facing Defining the strategy? Implementing the strategy: IBM Implementing the strategy: You Summary i

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Key Customer Scenarios

Traditional native applications Rewrite applications Mixed applications

Rewritten apps

RPGCOBOL

CL

JavaEGLPHP

Mixed apps

Traditional apps

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Traditional Applications

Traditional Applications–Existing 5250 applications have grown over time and become difficult to manage (Monolithic)

–Typical “application” may have 1000’s of objects and source members Problems

–Difficult to maintain•Dependency analysis (“If this changes, what will be impacted?”)•Duplication of code (little or no reuse)•Unstructured code

–Difficult to manage•Regulatory requirements•Change and Configuration Management

Multiple releasesManaging what changes are in production

–Isolated•Only accessible from same IBM i•Applications not integrated with other platforms

–End user requirements•User interface

–Cost•Resource costs•Loss of opportunity

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Rewrite existing Applications New Applications - need to write a new application for the business

– Java, EGL, PHP Problems

– Which languages to use?

• Java, JavaScript, HTML, JSF, XML, XML Schema

– Which user interface technology?

• Patching technologies

• 5250, multiple browsers, Rich client

– Reuse or re-write?

• Difficult to extract business logic from existing monolithic applications

– Difficult to manage

• Change and Configuration Management Multiple releases Managing what changes are in production

– Cost

• Cost to re-use; cost to rewrite

• Skills cost Reuse…

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Mixed Applications Mixed Applications

– Well structured, ILE RPG procedures containing only business logic– Web user interface leveraging RPG business logic

• JavaServer Faces, HTML, JavaScript, EGL, PHP, CGIDEV2– Integrated with other applications (internal and external) via Web services

Problems– Added level of complexity

• Now the problem spans multiple languages and systems– Difficult to maintain

• Dependency analysis– Difficult to manage

• User identity and security• Multiple languages and runtimes• Change and Configuration Management

Multiple releases Managing what changes are in production

– Cost• Large OPM code base started to get left behind

Customers had no perceived value (ROI) Those who didn’t move to ILE have a harder time today

• Skills cost

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You noticed? The Problems are Similar!

Difficult to maintain– Dependency analysis (TODO: explain)

– Duplication of code (no or little reuse)

– Unstructured code

Difficult to manage– Regulatory requirements

– Change and Configuration Management

• Multiple releases• Managing what changes are in production

Which languages to use?– Platform dependent or independent?

Which user interface technology? Cost

– Resource costs

• Loss of opportunity– Cost to reuse

– Cost to rewrite

– Skills costs

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Agenda




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What are the options? Is moving or mapping old to new realities a good idea?

– Option 1: Do we replicate good old days in new realities

• Advantages: Skill retention Simple and easy

• Disadvantages Will always have 5250 limitations ((indicators, command keys, data areas, data queues)

Need to learn new user interface languages (HTML, Java script) Always dependent on IBM to support new technologies Lacking behind new business opportunities

• Is it technically possible?Unknown

– Option 2: Mixed environment

• Advantages: Can leverage new technologies as they become available Don’t have to ask for IBM to implement it

• Disadvantages More learning

• IBM is committed to keep investing in RPG business logic, however, RPG cannot do everything in the new reality

RPG is a good business language, it is not a good user interface language

Non-Business logic must belong to IBM standard product offerings.

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Option 2: Mixed Environment

Controller Logic

Reporting

Rich UIRich UI

Web 2.0

Future UI

RPG/COBOL Business logic

exposed as web services

Controller Logic

Accounts Receivable

Rich UIRich UIWeb 2.0

Future UI

Controller Logic

Order Entry

Rich UIRich UIWeb 2.0

Future UI

Business logic integrated with supplier, customer, and vendor applications

Control logic PHP, EGL, J2EE or others.

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Recommended architecture is nice but, Existing applications written in monolithic RPG and COBOL

User interface is mainly 5250

Skill base in RPG, COBOL, CL, and DDS

New architecture can be complex

Today’s Applications Realities

Our Strategy: Provide Rational tools to help you tackle these realities so that you can get to the recommended architecture and manage ongoing application life cycle

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Agenda




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Application Development strategy main themes Application modernization

Program Understanding Program Transformation

Service Oriented Architecture Help IBM i developers SOA enabled applications

Web 2.0 User interface Leverage new user interfaces from existing applications

Application Life Cycle Management Requirement and defect tracking Team Collaboration, SCM, work items Builds and Change Promotion Deployment Quality Management

ALM

SOA

AppMod

AppReach

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IBM i AD Solution Focus Areas

App Reach

Service Oriented Architecture•Help IBM i developers create apps which plug into SOA solutions

Application Modernization•Help IBM i developers understand and transform existing code from inflexibly monolithic to extensibly modular

•Program Understanding •Program Transformation

Extending Application Reach•Leverage new user interfaces from existingRPG applications

Application Lifecycle Management•Help IBM i developers manage the entire application lifecycle

•Requirement and defect tracking•Team Collaboration, SCM, work items•Builds and Change Promotion •Deployment •Quality Management

ALMAppMod

SOA

(1)

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Application Modernization Tools

Exiting RPG and COBOL applications are large, complex, and often not very well understood

– But, they still need to be maintained and enhanced

– And, they are a very valuable asset

• They contain the logic that runs your business!

Program Understanding– Tools to help architects and developers:

• Better understand existing applications• Perform impact analysis• Identify reusable business logic

Program Transformation – Tools to assist:

• Restructuring existing applications to improve architecture, maintenance, and reuse RPG/400 -> RPG IV -> ILE

• Refactoring existing logic into reusable services

ALM

SOA

AppMod

AppReach

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Application Modernization Tools:

Program Understanding

Application Diagram– Available in Rational Developer for System i 7.1& 7.5

– Graphical view of different aspects of an application:

– Source call diagram– Visualizes copybooks, and subroutine, subprocedure and program calls

– Binary view – Visualizes ILE binding relationships between programs, service programs, and

modules– Includes details on procedures contained within them

– Future directions

– Include additional details such as physical, logical and display files– Visualize dependencies between files– Show which members, subroutines, and subprocedures access the files

– Dynamic updates– Add and remove resources from a diagram without rebuilding from scratch

– Allow diagrams to be the central place for developing an application– Intelligent tools that understand the relationships between resources

ALM

SOA

AppMod

AppReach

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Application Modernization Tools:

Program Transformation

• Refactoring– Tools in the RSE to allow refactoring of ILE RPG and ILE COBOL

• Renaming fields, subroutines, procedures Have all access and callers update automatically Extract existing code into reusable procedures

– Tool automatically determines which fields need to be passed as parameters and return type

– Program Slicing

• Monolithic program contains many “business rules” or “transactions” All intertwined with other code Cannot be invoked individually (and therefore are not reusable)

• Tools to help identify and refactor these transactions Using static (development time) screen or data flow analysis Using dynamic (runtime) tracing of program flow

ALM

SOA

AppMod

AppReach

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App Reach







ALMAppMod

SOA(2)

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Using Web Services with RPG and COBOL

Services are the building blocks for today’s applications

Our strategy focuses on restructuring and refactoring existing applications to make it easier to use services

Today RPG and COBOL programs can:– Call Web services using the Integrated Web Services Client for ILE

– Provide Web service interfaces

– Integrated with WebSphere Integration Developer using Web services or MQ Series

– Access XML data natively

ALM

SOA

AppMod

AppReach

Tools to Create Services When to Use

HATS Web services Exposing logic embedded in a 5250 program as a service

Integrated Web Services Server Web browser tool to create a service from a batch program or service program procedure. Easy to use, but limited deployment and customization options.

EGL Service wrapper Development tools to create Web service wrappers for batch programs and service program procedures. Flexible customization and deployment options. Java Service wrapper

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Web Services – Future Thoughts

Make it easier to invoke Web services from RPG– Provide native Web services support in ILE to allow WS bindings from RPG

• Similar to how external procedures in a service program are handled in ILE• Language support in RPG IV to prototype a procedure based on an WSDL file• Developer codes a call to Web Service as if it was a local procedure• ILE runtime handles Web Service invocation at runtime based on information in

WSDL file and parameters passed from RPG

– Or, provides tools to generate required code for calling Web services using the Integrated Web Services Client for ILE

• Integrated Web Services Client generates C code based on WSDL file

• Today developer needs to prototype calls to C procedures in RPG and know which data types to pass

ALM

SOA

AppMod

AppReach

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App Reach







ALMAppMod

SOA (3)

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Web 2.0 - Rich Internet Apps

Users now expect modern, interactive UIs: Dojo, Google Maps, etc.

Browsers are ubiquitous and increasingly powerful Reap the benefits of Client-Server architectures:

– Presentation logic within the browser

– Server used for business and data access logic

– Server bandwidth and response times increase But typically, many low-level technologies to learn:

– JavaScript, HTML, CSS, Ajax, Dojo, SilverLight, SOAP, WSDL, Flex, XML, JSON, Google Maps, HTTP, etc

– Focus is on “how” instead of “what” EGL Rich UI hides these details and complexities:

– Focus is on “what” instead of “how”

– Improves developer productivity

– Enables more developers to build Web 2.0 solutions

– Easily extensible with new widget sets

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App Reach







ALMAppMod

SOA

(4)

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Team Collaboration Team Collaboration – Rational Team Concert for i

–Team collaboration powered by Jazz technology

–Team Server hosted on IBM i

–Client integrated with RDi

–Manage your team’s activities for RPG, COBOL and Java development on a single server

–Plan your development team’s work and track their progress on these work items

–Store your RPG, COBOL and Java source in a central source control repository

–Improve communications with your team through integrated email notification, work item subscriptions, team news feeds, instant messaging, reports and dashboards

–Team Build support for RPG, COBOL and Java applications

–Web accessibility for non-development team members

ALM

SOA

AppMod

AppReach

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Requirement and Defect Tracking

Rational Team Concert for i– Track changes to your RPG, COBOL and Java source in

a single source control repository

– Customize approvals and rules for delivering changes

– Customize the workflows to reflect your own development team’s processes

– Source changes and builds are linked – you can look at which lines of source changed for each build to quickly diagnose regression problems

– Customize the workflows to reflect your development team’s processes

ALM

SOA

AppMod

AppReach

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Quality Management

Rational has Quality Management tools –Rational Functional Tester allows you to automate testing of Web and Java applications, and generate reports for the test results

–Rational Manual Tester improves productivity for documenting and running interactive testcases, and generating reports for the test results

–Rational Functional Tester Extension for Terminal-based Applications allows you to automate testing for 5250/3270 terminal-based applications, and generate reports for the test results

Future direction: Integration with Jazz technology–Consolidate development and testing activities on one team server, with links between defects and test results

ALM

SOA

AppMod

AppReach

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Agenda




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Strategy: Top down and Bottom up!

Browser UI

Web Services

More flexible services

App. Modernization tools

HATS Web, Portal, Rich Client

HATS Web Services

Java or EGL consuming services

Application Reach Phase I

Exist?

Various UI

Refactoring Tools

Services

Refactored services

UI

SourceCode

SOA Phase I

Application Reach Phase II

Application Modernization Phase: Componentization

SOA Phase II

Application Reach Phase I

Application Modernization Phase: Componentization

SOA Phase I

Application Diagram

RDi WebServices wizard

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QUESTIONS

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… … and tell and tell me What else me What else can ‘i’ do for can ‘i’ do for

you?you?

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