caravel™ insight v.7 overview - base100€¦ · caravel™ insight v.7 overview a first approach...

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Caravel™ Insight v.7 Overview

A first approach to the most innovative reengineering tool.

Caravel Technology introduction

The BASE 100 team started the reengineering activity more than 15 years ago. Since then, millions of legacy code lines have been modernized, focusing the activity in the IBM® midrange and mainframe systems. The BASE100 team has acquired a huge experience, after hundreds of successful projects along the world. All the Caravel™ proposal, benefit from this experience.

During this period, methodology, technology and tools, have been developed, tested and put under continue evolution, conforming the Caravel™ modernization suite. A clearly structured, highly efficient set, which covers from the first assessment phases to the final Refactoring or Reengineering.

A complete set of tools clean, analyze, recover and document structure, logic and functionality. An accurate pseudocode Java generator supports an easy and reliable reengineering processes.

Additionally, the Caravel™ suite includes the capability of Automatic Conversion from RPG or COBOL Legacy Systems, to Java. This feature can be used as a final objective or as an intermediate valuable step in the Reengineering process.

Caravel™ methodology takes account of the inherent risks of any reengineering project, offering the appropriate answer at every stage of the process. Additionally, Caravel™ relies in the use of advanced tools, to reduce the manual effort, automatizing all the critical processes.

Both factors reduce the time and costs, minimizing the risks. As result, Caravel™ offers a safe and reliable Conversion, Refactoring and Reengineering way.

Caravel™ Insight v.7.0 2

Caravel Insight v.7.0

Caravel Insight: Overview

The Caravel Insight tool provides a deep understanding of any AS/400 RPG or COBOL Legacy system in a fast, precise and intuitive way.

A complete set of tools clean, analyze, recover and document structure, logic and functionality.

Creates an practical, interactive and navigatable image of the system, including all the required information.

An accurate pseudocode Java generator supports an easy and reliable reengineering processes.

Caravel Insight: Understand, clean, document

With a 100% visual interface, even extremely complex systems can be easily understood and managed by means of Insight’s models and tools.

The system can be cleaned and fully documented, keeping it ready for maintenance or rewriting.

All the information is delivered in navigatable formats, full downloadable to standard files formats.

The ability of registering and running Use Cases allows to recover the whole functionality.

Caravel Insight: Analysis Process

Automatic information extraction

An automatic process, imports all the information related to the Legacy System, using a native IBM ToolBox connection.

After the imported information, a complete database & xml structure is built. All valuable data of the Legacy System is always at hand, well structured and ready to be analyzed and visualized.

In this stage, powerful visors, analyzers, pseudocode generators and functionality recovery tools can be deployed.

Tool Box connection

Object extraction

Data elaboration

Legacy System

Recovering the whole system

The Insight tool covers both the extraction of complete System Functionality and the discovery of all the (hidden) System structure.

Based on the Legacy System components, without the need of additional documentation, all characteristics and potential issues are in sight.

By means of the users knowledge, following an easy & low effort approach, Insight helps building the necessary Use Cases, to recover all the System Functionality.

Components & processes: Structure & functionality

9 Caravel™ Insight v.7.0

Insight allows retrieving Components and Processes to get structure and functionality of the Legacy System.

Performing both static and dynamic analysis. To real understand the System it is mandatory to know how it runs: Insight will reveal it.

Because just to measure is never enough!

Based on system objects information

Complete, Detailed, 100% Documented structure.

Components

Processes

Based on use cases/Users knowledge

Complete, verified, 100% documented functionality.

Effective support for Rewriting systems I

Caravel Insight implements capacities that highly facilitates the task for any reengineering process: Discovery visor: A visual way to presenting and understanding Legacy Systems. A new group of reengineering tools: Flow charts, pseudocode and process analyzer. Every component is analyzed and explained in detail.

Oriented to finding all components, cleaning the system, detecting potential issues and understanding

the whole Legacy System structure.

Insight extracts the logic and documents by means of flowcharts and precise Java pseudocode, to guarantee a reliable and easy rewriting process.

A dynamic analysis allows describing and understanding applications when running.

Caravel Insight directs in a precisely manner the System rewriting tasks, reducing the workload and eliminating the risks.

Effective support for Rewriting systems II

Precise Java pseudocode

Legacy code

Flow-charts

Insight: System Objects analysis

Insight: Object Analysis

Every object details are stored in the Insight DB. Then can be viewed together with all the related information.

Insight: Object Analysis – DSPFs and PRTFs

DSPFs and PRTFs are deeply analyzed. Practical specialized tools show structure and behavior.

Insight: Object Analysis - Metrics

For every program type object, different complexity metrics are calculated. These metrics are also summarized at library and module level. Discovery visor brings alternative powerful views. This helps to planning the reengineering workload.

Insight: Object Analysis - Library Overview

According the original organization of Legacy Systems, objects area classified by types and organized in libraries.

Insight: Object Analysis - Statistics

For every object, different statistics are built, that can be viewed at the various levels: application, module, library and object.

Insight: Object Analysis - Structure and Dependencies

Using the Insight standard visor, the general structure of the System can be viewed. It also provides a clear understanding of objects relationships and dependencies. In both cases Discovery visor brings alternative powerful views.

Insight: Object Analysis - Reengineering Tips

Every object is analyzed searching the potential issues for a Reengineering or Conversion process. If found, they are clearly categorized. According to the characteristics of the Legacy System, specific tips searches can be built at any time.

Insight: Flow - Diagrams

Insight: Object Analysis - Pseudocode Flow Diagrams

Program objects are divided and structured in logic components: main and auxiliary routines. Then flow-diagrams and Java pseudocode are generated separately for every component.

Flow-diagrams offer a first and intuitive approach to the program logic.

Pseudocode specifies precisely the program logic.

Sample 1

Sample 2

Sample 1

Insight Discovery: Legacy System Navigation

Insight Discovery visor: Legacy System Navigation

The Insight tool offers a complete capability to navigate, discover and assess any AS/400 Legacy System, at the deepest level of detail.

Powerful tools can reveal the different aspects of the Legacy System, even the hidden or long time lost.

Using Discovery visor, the whole system can be easily overview in a intuitive top-down vision. While maintaining the general picture, every detail is put under light, by means of the standard visor.

Insight standard visor.

Insight Discovery visor.

Discovery visor navigation: Simple actions.

1. Shows program type objects with dependencies.

2. After activating FILES (ON) switch files and related dependencies are also shown.

3. After selecting with mouse an object (MEREPC) all the dependencies up to the defined level

are shown (in this case are shown up to level 2).

4. It is always possible to hide the non selected objects to clean the workspace, activating the

switch "Hide->Unselected“.

5. At any time it is possible to hide files. Activating switch FILES (OFF).

6. At any time it is possible to select groups of objects using the mouse with right button click.

7. It is also possible to find objects by name using the “Search” tool.

8. It is also possible to find initial or final nodes (corresponding to start/end programs). This

allow find main execution paths.

Insight Discovery: Legacy System Navigation 1

The basic vision Shows

program type objects with

dependencies.

Many options to control

of every aspect of the

navigation.

After activating FILES

(ON) switch files and

related dependencies are

also shown.

Selecting with mouse an object

(MEREPC) all the dependencies up

to the defined level are shown (in

this case up to level 2).

It is always possible to hide (or

unhide) the non selected

objects, activating the switch

"Hide->Unselected“.

At any time it is possible

to hide files. Activating

switch FILES (OFF).

At any time it is

possible to select

groups of objects

using the mouse with

right button click.

It is also possible to find objects

by name using the “Search” tool.

To find initial or final nodes

(corresponding to start/end

programs). This allow find

main execution paths.

Understanding the System

Objects complexity and size

Selecting objects size or complexity

in the view Menu, shows the relative

value of every object.

This allows a quick understanding of

the characteristics and precisely

planning the reengineering

workload.

Specific views for a complete understanding

Selecting objects size or

complexity in the view

Menu, shows the relative

value of every object.

This allows a quick

understanding of the

characteristics and

precisely planning the

reengineering workload. Selecting Start Nodes or Reused Nodes options, allows

specific visons of the Legacy System.

Insight includes many specific visions, every of then

add value to the knowledge and understanding.

Use Cases: Recovering the functionality

The functionality is recovered by means of the execution of Use

Cases that reproduce how the legacy system runs.

During the execution, the objects usage is analyzed and hence

the relationship between objects and processes.

The functionality is clearly

revealed and documented.

The Use Cases mechanism allows to extract the

sequence diagram of every process of the system,

showing in the detail the real behavior and how this is

related with the system functionality.

The internal structure of processes is put under focus.

Inside the object information are the

details of the Dead Code.

The sequence diagrams can be viewed at different

degrees of detail, allowing a progressive and

complete understanding of the system.

Cleaning the System

Cleaning the system 1: Orphan objects

Selecting Dead Code option of the View Menu,

displays all the objects than contain functions that

are never used.

Looking into the object you can find the details of the

Dead Code.

Selecting Orphan Objects and

Isolated groups option of the

View Menu, displays all the

objects that are not

referenced and doesn’t

references to any one.

Usually deprecated and

old objects (or groups),

that are unused by the

system.

In the configuration Menu is

established the minimum number

of objects of the group, to not be

considerate as isolate one.

The first step to eliminate

unused components to keep the

system clean.

Cleaning the system 2: Finding & fixing Dead code

Selecting Dead Code option of the View Menu,

displays all the objects than contain functions

that are never used, clearly marked.

Inside the object information are the

details of the Dead Code. It can be

verified and eliminated.

This second step in the process,

allows a deeper cleaning of the

legacy system automatically.

The reengineering workload can

be focused to the valid parts.

Rewriting the system

Rewriting the system: Pseudocode to definitive Java

For every program, a set of information is

generated to support the system code

rewriting.

Program objects are divided and structured in

logic components: main and routines.

Then a Java pseudocode is build for every

component.

The extremely precise pseudo code allows an easy and well guided path to

rewriting the definitive Java programs.

The gap between pseudocode and definitive Java is very narrow. The technician

team can just follow the main lines defined by the Caravel Discovery tool.

www.base100.com

Thank you for your attention

caravel™ insight v.7 overview - base100€¦ · caravel™ insight v.7 overview a first approach...

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