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C2090-913 exam Dumps Source : informix 4gl development
Test Code : C2090-913
Test Name : informix 4gl development
Vendor Name : IBM
Q&A : 149 Real Questions
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IBM informix 4gl development
Jun 5, 2012
Informix Genero, a new IBM offering developed beneath partnership with four Js construction equipment, is a logical enhancement to the Informix 4GL language and ambiance that presents huge capabilities for establishing up to date web and computer GUI purposes, reports, and internet capabilities.
hunting for a short, budget friendly option to rewriting IBM Informix 4GL functions? With IBM Informix Genero, users can recompile 4GL purposes and run them as GUI and internet functions whereas protecting the enterprise good judgment. transformed purposes are able to deploy on numerous platforms, in most cases and not using a code amendment and very little trying out. It permits clients to leverage their ability base to update "eco-friendly reveal" applications and enhance the graphical interface over time, all whereas the purposes continues to be accessible.
ASuperset of Informix 4GL
Informix Genero is a superset of Informix 4GL. as a result of virtually all 4GL syntax and semantics exist in Informix Genero, the Informix Genero compiler can recompile the 4GL supply code. In definite instances, the Genero compiler is stricter than the 4GL compiler, but any adjustments required for the Genero compiler are also valid for the 4GL compiler. as soon as the 4GL source code is recompiled with the Genero compiler, it could then be run using the various Informix Genero runtime system alternatives. because the 4GL supply code is still unchanged, the testing effort required to flow modernized purposes into creation is drastically reduced.
After recompilation, the resulting GUI or net application can take skills of prosperous consumer-interface components while leveraging the underlying 4GL company good judgment. And, because the transformed software is still completely purposeful and usable after complication, pull-down menus, toolbars, true dialog packing containers, and different wide-spread GUI controls can also be phased in over time, and the brand new software may also be immediately available to the person neighborhood. users can interact with the application the use of the identical keyboard-based controls, characteristic keys, default menus, and other primary controls that have been defined for 4GL.
Modernizing Versus changing to Java
Let's consider an illustration of a typical Informix 4GL software suite inclusive of
242 separately compiled 4GL programs
1522 4GL source-code modules
596 displays (4GL varieties)
575 KLOC of 4GL supply code
This application gives statistics-entry and statistics-renovation operations via a character-based interface, and has some batch-updating and reporting functions. The utility includes 596 monitors, of which 250 (~forty%) are used for interior information renovation and housekeeping operations. The closing 346 displays can be found to the consumer for records entry, but simplest about 100 of those displays are used commonly.
changing the customary software to Java can be an "all or nothing method," at the least with respect to leveraging the original 4GL supply code. The complete software would ought to be rewritten. Assuming about a hundred and sixty lines of code per day (in keeping with the Gartner Group1 estimates for code modernization), the coding effort for this challenge can be big: over 160 grownup months. Assuming that new code written in Java has an error cost of approximatley sixty one defects per 1000 strains of code2, further effort would need to be spent debugging and fixing doubtlessly as many as 35K error. also, since the new application can be thoroughly new Java good judgment, a complete checking out and certification process would deserve to be carried out, as with some other new software.
Modernizing the customary application with Informix Genero would reuse the 4GL source code. The 4GL source code would be recompiled with the Informix Genero compiler in order that the utility could run on a lot of styles of display valued clientele. The compiler direction within the build file could comfortably be changed to compile the Genero applications within the equal construct environment. There would probably be just a few minor transformations between the 4GL and Genero compilers and there would be adjustments necessary for coping with external C code. After any required changes can be made, the Genero utility could be capable of run in textual content mode, just like the common Informix 4GL utility.
Configuring the Informix Genero laptop client would permit the Genero software to be rendered in GUI mode on home windows, Linux, and Mac working methods. making a small XML configuration file for the Informix Genero application Server would enable the identical utility to be rendered in internet browsers. testing the application may begin automatically. as a result of this utility could be using the latest 4GL syntax and semantics, the functional and verification trying out would require extensively much less effort than for a brand new Java-primarily based software.
the hassle to enhance this software would need to focal point handiest on the graphical user interface of the one hundred screens that are -used frequently for information entry. The underlying good judgment may be left generally unchanged. The other 246 monitors which are presented to the user may well be deployed in a phased method, perhaps 50 displays a month over a 5-month length. The ultimate 250 monitors (and the underlying common sense) could be left unchanged as a result of they would be used sometimes with the aid of inner team of workers. much less effort can be spent on checking out and the certification for the Informix Genero undertaking than for the Java undertaking.
The final analysis
changing the Informix 4GL software to Java would take significant time and be costly. The compatibility between Informix Genero and Informix 4GL saves time and cash via leveraging the underlying business logic of the latest software. Informix Genero minimizes initial expenses and efforts, and permits the graphical user interface to be better over time whereas the utility is still available to the person group.
1Gartner community, "Forecasting the global IT functions trade: 1999"
2Geoffrey Phipps, "comparing accompanied bug and productivity fees for Java and C++," utility-follow & journey, v.29(4), p.345-358, 1999
concerning the creator:
Shawn Moe is a software architect at IBM, focusing on UI modernization, SQL compatibility, utility development, and tooling help for the Informix database servers. For greater suggestions, go to www-01.ibm.com/utility/facts/informix.
Press liberate abstract:
4 J's company development Suite presents graphical development device for Informix 4GL clients. whereas preserving investments in 4GL source code, it permits builders to open functions seamlessly to wide variety of graphical computing environments. It offers N-tier thin client structure and scales to heaps of clients simultaneously. clients can write functions as soon as and set up any place, without recompilation for different working methods.
customary Press free up:
four J's company construction Suite offers a Graphical construction tool for Informix 4GL clients
At a GlanceFour J's business building Suite:o makes it possible for functions to run throughout heterogeneous customer, database, and working system environments for a single supply code across the intranet and the Interneto Improves developer productiveness via constructing on existing 4GL company logico Develops goal-constructed enterprise purposes option to J2EE, EJB, .Neto enables you to jot down once and deploy anyplace, without recompilationo allows for projects to be accomplished on time and within price range while focusing on the enterprise good judgment as opposed to the infrastructureo provides N-tier thin client architecture and scales to hundreds of users concurrently
OverviewFour J's is well-known within the Informix(TM) community as the author of Informix Dynamic 4GL, a graphical building device for Informix 4GL (I-4GL) clients.
The business development Suite brings new value to company functions written in I-4GL or Dynamic 4GL (D4GL). This amazing and scalable application server platform accesses numerous databases (Informix, DB2®, Oracle, MS SQL, and MySQL) and GUIs (X11, Microsoft® windows®, Java(TM), HTML, WML, and XML) with minimal effort. that you could write purposes as soon as and install them anyplace, devoid of the deserve to recompile for different operating systems (UNIX®, Linux, and Microsoft home windows NT®).
the use of company building Suite, organisations and impartial application carriers (ISVs) can increase productivity and improve their investments in present 4GL company common sense, enabling them to address new user needs and market alternatives at a in your price range.
The items in this announcement can be found as a part of the IBM Developer earnings Channel utility Remarketing software. Product information has been offered by means of the application corporation, four J's building equipment, LTD.
Key PrerequisitesUNIX, Microsoft windows 2000 Server, XP, AIX® 5.X or Linux 7.x and eight.x
Availability DateJuly 8, 2003
DescriptionFour J's enterprise development Suite is the fastest solution to reach windows, the information superhighway, and mobile contraptions for latest and new 4GL applications.
while keeping investments in 4GL source code, construction personnel, and user practising, enterprise development Suite makes it possible for builders to open applications seamlessly to a large choice of latest graphical computing environments. Its three-tier, skinny-client architecture offers unmatched application performance and scalability with server aid for home windows NT, Linux, and UNIX platforms.
With four J's Open Database Interface (ODI), connectivity is supplied to database servers reminiscent of DB2, Informix, and different database servers through a library of native database drivers.
Thomas business replace
Legacy applications Vs. contemporary purposes
on the possibility of over simplification, I accept as true with that a "modern utility" may also be illustrated with the aid of the photograph in determine 1. For probably the most half, when legacy applications are mentioned, one constantly thinks of monolithic purposes that have been written in older programming languages,. An illustration of here is COBOL, which is a terminal-based person interfaces that always makes use of information stores similar to ISAM, flat files, and proprietary database management methods. The left most backside of the diagram indicates this type of software. as the diagram demonstrates, utility architectures have evolved into web and cellular user.
determine 1 - up to date utility
Interfaces that can be loosely coupled with external purposes are often based mostly within the cloud. This diagram does not display that functions developed these days are most regularly in a position to be hosted on virtualized servers and/or in containers. The diagram also does not reveal that purposes developed today are developed with more recent programming languages and with a few diverse database technologies.
This dichotomy between legacy purposes — both from a feature, usability, can charge, and relative problem views — provide increasingly mighty motivations for stakeholders to exchange and modernize these legacy purposes.
what's the CUBA-Platform?
The CUBA-Platform gives a full-stack architecture for constructing three tier applications. It comprises everyday features for enterprise apps, akin to tender deletion, records-mindful accessories, file storage, and excessive degree modules, including authentication, authorization, audit of data, and others. This category is most acceptable for establishing ERP-like systems, line of business applications, or custom application for the company segment.
On the surface, the CUBA-Platform appears to be particularly appropriate to constructing custom applications from scratch. despite the fact, a more in-depth seem to be reveals a platform that provides the capacity to reuse latest databases, auto generate area models from current databases, instantly create relaxation APIs from current artifacts, standardize entrance-conclusion through the use of prebuilt responsive UI templates, flip current enterprise logics into usual features, and, ultimately, integrate any relaxation based mostly third-birthday celebration functions without coding. These points make the CUBA-Platform most excellent for the combination of a full stack Java framework with legacy functions.
What Are TransformixTools?
TransformixTools for CUBA-Platform are a couple of customized engineering add-ons and adapters that hyperlink legacy applications to the CUBA Platform. among these are database adapters, terminal reveal adapters, COBOL features integration components, and Eclipse plugins. These tools function CUBA-Platform plugins to facilitate the mixing of the legacy software to CUBA aspects.
For the stakeholders of legacy purposes for business customers, ModerinzationInPlace™ is an inventive strategy to software development and effective open supply expertise that helps developers integrate current legacy applications with the complete stack CUBA-Platform business development framework. This non-invasive approach transforms the utility into a multi-mannequin building platform. latest equipment may also be used to prolong and increase current legacy application code, while, at the same time, up to date building tools will also be used to increase and prolong application functionality. therefore, ModernizationInPlace™ makes customizations and enhancements to the software functionality fantastically painless.
ModernizationInPlace™ is a framework for boosting the software's business layer (with net service APIs) and database
equipment from Transformix allow the utility user interface to be supplemented with browser access that makes it possible for combining present internal purposes screens, like Legacy applications (mainframe green monitor purposes), with exterior net services and net pages with regular sites designed devoid of integration interfaces (APIs), XML suggestions, and databases.
The CUBA-Platform is an open supply, full stack Java framework that provides an open source foundation.
in keeping with a Java technology stack, this is compiled of the ideal practices for designing a enterprise software's database, business layer object mannequin, and web API
There is not any hidden magic; the generated server utility is a regular relaxation net service that will also be debugged using its source and the prevalent Java IDE's.
toward the Multi-model applications Platform
determine 2 - Multi-mannequin functions Platform
yes, Virginia. it's possible to have your cake and eat it too, as a minimum, in so far as legacy purposes are concerned. with the aid of that, I imply it is viable to enable for continuing development within the legacy paradigm in parallel with construction in more moderen paradigms. determine 2 illustrates an atmosphere in which an software become built for an HP 3000 in COBOL with a proprietary HP TurboIMAGE database administration gadget that has been migrated to Linux with a PostgreSQL RDBMS. here is performed with handiest minimal changes to utility sources. during this environment, the COBOL purposes nonetheless use the same APIs they used on the HP 3000. for example, database calls are TurboIMAGE calls and monitor IO calls are VPLUS calls. although, the use of the mixture of the CUBA-Platform with the TransformixTools enhancements makes it possible to demonstrate the terminal primarily based user interface in a web browser and the database will also be accessed using SQL. for this reason, at the identical time that the legacy classes are used, the software will also be greater in the same approach as a newly developed Java-primarily based CUBA utility is greater. additionally, the builders who work on the software as a CUBA software don't need to have an HP 3000 abilities or capabilities to do their jobs.
five Steps to ModernizationInPlace™
determine three provides a high degree overview of how the multi-model applications platform is applied. A SQL accessible database is needed so as to take full advantage of the elements the CUBA-Platform has to present. for this reason, the 1st step is emigrate the utility records entry to enable for multi-model SQL access. This potential that the long-established application will nevertheless be able to access the statistics the usage of the common APIs, whereas, on the equal time, different purposes, such as CUBA, can be capable of use SQL to entry that same information. Step two is to permit browser entry to the software screens. during this 2nd step, it additionally includes the installing of the CUBA-Platform alongside the application. The software takes on the qualities of a multi-mannequin utility as soon as the CUBA-Platform is installed. This capability that from then on the utility may also be prolonged and stronger with contemporary tools with the aid of developers with little or no advantage of the legacy programming ambiance.
below is an expanded edition of the five steps against creating a multi-mannequin purposes platform.
step one: A Multi-model records Platform
A popular "trick" in migrations is to give a simulated legacy gadget API on properly of a relational database. This permits the current software to access the facts using the equal database calls or APIs. at the equal time, this gives choice industry general interfaces to more moderen and commercially available off-the-shelf applications. this is the method Transformix makes use of. here are some examples:
HP 3000 TurboIMAGE or Eloquence Database to RDBMS
TransformixTools offers a TurboIMAGE API that enables purposes that were at the beginning written for the HP 3000 to have the data and schema's migrated to Oracle, PostgreSQL, MSSQL, IBM DB2, or IBM Informix with few or no alterations to the application courses. Then, other purposes can entry the records using common APIs corresponding to SQL.
MS entry to RDBMS
Microsoft access lets you conveniently create databases to save and latest your information in varieties and reports. When beginning, a database can be very fundamental and trivial, however, over time, it could develop into greater crucial as you add information, facets, and even share it with others. It beneficial properties a life of its personal and the overall design turns into critical.
figure three - ModernizationInPlace 5 Steps
probably the most important architectural designs is splitting the database right into a front-conclusion and back-conclusion database. this is how entry is designed to let you help multi-person databases and vastly simplify the way you raise the utility over time.
isolating your application and information databases enables you to help distinct clients and improve the software with out wiping out their data. Assuming the utility doesn't change that commonly, the separation additionally makes it less difficult to just backup the information database for the reason that most effective that is changing every day.
Splitting a database is a comparatively primary concept. you take an latest access MDB/ACCDB database with its tables, queries, varieties, reports, macros, modules, and many others. and divide it into two databases:
The "again-conclusion" database that just consists of the tables
The "front-conclusion" database that incorporates the application objects (everything apart from the tables) and hyperlinks to the tables within the again-conclusion database
This design is chiefly valuable in multi-person environments where the again-end database is saved on a community and consists of the shared records. every user then has a duplicate of the entrance-conclusion database on their computing device pointing to the shared database.
In multi-user environments, the front-end database can additionally comprise tables that are inner most to the person. These native tables can shop the user's settings, choices, temporary or intermediate tables for processing information or experiences, etc.
as soon as the database is cut up, the use of ODBC to entry it from MS entry and using MS entry as a frontend permits the backend to be accessed with the CUBA-Plaform.
Microfocus ISAM to Ctree
FairCom's No+SQL expertise gives flexibility with an ISAM application's statistics architecture by way of allowing records ISAM of any category to be stored inside your checklist constitution, with none pre-defined schemas. at the equal time, it helps industry-regular SQL (relational) interfaces and high-performance NoSQL (non-relational) interfaces to the same information on the equal time.
c-treeACE is an ANSI-compliant SQL database with aid for every thing you are expecting from an RDBMS, together with saved approaches, triggers, person-described features, ODBC, JDBC, and a wealth of usual interfaces. c-treeACE gives simultaneous access to the same statistics by means of NoSQL interfaces for the top-rated in efficiency.
TransformixTools offers a CUBA-Platform interface to C-tree SQL.
Informix 4GL to Aubit4gl and RDBMS
as soon as the database is in the RDBMS CUBA-Platform, it can also be used to prolong and increase the software.
Step Two: Browser UI
TransformixTools gives options based on the CUBA-Platform and Vaadin that turn legacy application consumer interfaces into browser-primarily based interfaces.
Our terminal emulation answer offers an immediate net browser primarily based terminal emulator to key enterprise systems, together with UNIX or a VMS device on any gadget with zero customer application setting up. This will be centrally managed. The Transformix answer is according to the CUBA-Platform. for this reason, at this step, the CUBA-Platform is installed and made obtainable to the utility builders.
VPLUS API Intercept
an extra method we use is the terminal API intercept approach. The best illustration is our VPDM HP VPlus substitute. We convert the HP VPLUS types file to Java classes and create an xmlrpc-based mostly intercept library that implements a plug-appropriate alternative for VPLUS calls.
MS entry varieties
This answer is in accordance with the CUBA-Platform, as well. The TransformixTools DBForms solution includes application equipment that turn MS access types to net pages written in Java code and is attainable for viewing through your information superhighway browser. A prerequisite for here is to show MS access tables and queries into their turn and convert them to RDBMS. For now, this solution is limited to PostgreSQL.
Step Three: improved Browser
A composite utility (often known as a "Mashup") is a website component or utility that shows combined content material mixed from heterogeneous sources. conclusion-clients shouldn't have to know which underlying sources and applications this aggregated information is coming. In its easiest implementation, adding highly fundamental external enhancements to a legacy person interface, comparable to dropdowns or a type-forward search, can enormously boost the user adventure with the application. These two elements require database access this is become independent from the long-established utility and they may also be applied with out modifying the customary application. figure 4 indicates what the consumer sees on their desktop and is a further composite of the original utility reveal. On accurate of that, a Google Map is made obtainable through a rest API and the CUBA-Platform. This, too, doesn't require a modification of the fashioned utility.
figure four - Composite application reveal
the use of the CUBA-Platform in Step Two is not handiest a improvement for creating the browser UI within the first place; it also makes it viable to lengthen and increase the application from the user's factor of view with out altering the customary utility.
Step four: mobile and internet capabilities
The CUBA-Platform became added to the application atmosphere in Step Two as a car to facilitate enhancing the user interface to the utility. Step Three gave us the opportunity to discover how CUBA can aid extra increase person interfaces. In Step four, we start to seem on the actual vigor of the platform. It offers a no Code and Low Code Platform that lets you reshape how you have interaction together with your legacy UNIX or VMS equipment, in addition to your home windows, Linux, or MAC device. With legacy terminal based applications, we now have observed that it offers us equipment to aid change eco-friendly monitor person experiences into modern interfaces that are delivered over the web. This gives you the liberty to adapt and evolve company procedures, instantly realizing new efficiencies and gaining rapid ROI and tactical merits that are simply no longer purchasable somewhere else. What's more, this can be carried out by way of a super user or Citizen Developer.
leisure APIs are the entire rage this present day. using relaxation and different HTTP(S) based APIs have develop into the lingua franca of the world of computing. The CUBA-Platform is constructed on precise of relaxation APIs and it performs very neatly with relaxation APIs supplied by way of others. using CUBA as a modernization foundation for legacy methods transforms your host environment into a dynamic component of your business methods interface layer, which is continuously limited to the transaction layer of the commercial enterprise. These new equipment will unleash the investment to your host equipment to freely engage with and feed tertiary business techniques, expanding the supply, timeliness, and integrity of essential enterprise statistics.
somewhat more About developing With the CUBA-Platform
At its highest stage, the CUBA-Platform includes the design time CUBA Studio, which works in concert with either Intellij concept IDE or Eclipse IDE. At runtime, it makes use of a Java application server, constantly, Apache Tomcat.
figure 5 - CUBA high stage Overview
The CUBA Studio is a specialized tool for fast application construction that streamlines building purposes upon CUBA Platform. With Studio, functions are up and running inside minutes. It additionally accelerates modernizing legacy applications by means of scaffolding the facts mannequin and CRUD UI on exact of an current database.
Studio is designed for use in parallel with a Java IDE (figure 6) , so developers will not have to desert their liked working environments. The focal element of the development process is the studio. projects are open in Studio and most of the configuration and enhancement is managed with Studio in conjunction with the IDE. furthermore, checking out and debugging are managed through Studio as neatly.
determine 6 - Studio with IDE
purposes developed the usage of the CUBA-Platform occupy three tiers as proven in figure 7. they're the database tier, the middle tier, and the customer tier. These tiers are related the usage of leisure and HTTP APIs.
determine 7 - CUBA excessive level software structure
the usage of this structure, the identical backend will also be used for internet, laptop, cell, and leisure API applications.
Step five: Loosely Coupled internet functions
one of the most essential ideas in the world of utility engineering is the thought of free coupling. In a loosely coupled design, components are impartial and changes in one will now not have an effect on the operation of others. This strategy offers most effective flexibility and reusability when components are added, changed, or modified. components that may function independently and have a well-defined conversation channel are loosely coupled.
The structure of the CUBA-Platform is developed to help this loose coupling of add-ons. therefore, when legacy applications are built-in with the CUBA-Platform, it enables their elements and components for use with the same flexibility as extra lately developed software components.
ModernizationInPlace™ is the Transformix computer business enterprise method for changing legacy functions into future-proof business applications with the CUBA-Platform. This approach helps businesses create multi-mannequin applications systems that permit legacy functions and software extensions written in the CUBA-Platform (supplied by using a full stack Java framework) to work side-by-aspect. the usage of this strategy, the prominent benefits of utility modernization are achieved quickly and at low chance.
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informix 4gl development
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Jun 5, 2012
Informix Genero, a new IBM offering developed under partnership with Four Js Development Tools, is a logical enhancement to the Informix 4GL language and environment that offers extensive capabilities for developing modern web and desktop GUI applications, reports, and web services.
Looking for a quick, cost-effective alternative to rewriting IBM Informix 4GL applications? With IBM Informix Genero, users can recompile 4GL applications and run them as GUI and web applications while retaining the business logic. Converted applications are ready to deploy on various platforms, in most cases with no code modification and very little testing. It allows users to leverage their skill base to update "green screen" applications and enhance the graphical interface over time, all while the applications remains available.
ASuperset of Informix 4GL
Informix Genero is a superset of Informix 4GL. Because virtually all 4GL syntax and semantics exist in Informix Genero, the Informix Genero compiler can recompile the 4GL source code. In certain situations, the Genero compiler is stricter than the 4GL compiler, but any changes required for the Genero compiler are also valid for the 4GL compiler. Once the 4GL source code is recompiled with the Genero compiler, it can then be run using the various Informix Genero runtime system options. Because the 4GL source code remains unchanged, the testing effort required to move modernized applications into production is greatly reduced.
After recompilation, the resulting GUI or web application can take advantage of rich user-interface components while leveraging the underlying 4GL business logic. And, because the converted application is still fully functional and usable after complication, pull-down menus, toolbars, real dialog boxes, and other commonly used GUI controls can be phased in over time, and the new application can be immediately available to the user community. Users can interact with the application using the same keyboard-based controls, function keys, default menus, and other basic controls that were defined for 4GL.
Modernizing Versus Converting to Java
Let's consider an example of a typical Informix 4GL application suite consisting of
242 separately compiled 4GL programs
1522 4GL source-code modules
596 screens (4GL forms)
575 KLOC of 4GL source code
This application provides data-entry and data-maintenance operations through a character-based interface, and has some batch-updating and reporting functions. The application contains 596 screens, of which 250 (~40%) are used for internal data maintenance and housekeeping operations. The remaining 346 screens are available to the user for data entry, but only about 100 of those screens are used frequently.
Converting the original application to Java would be an "all or nothing approach," at least with respect to leveraging the original 4GL source code. The entire application would have to be rewritten. Assuming approximately 160 lines of code per day (based on the Gartner Group1 estimates for code modernization), the coding effort for this project could be substantial: over 160 person months. Assuming that new code written in Java has an error rate of approximatley 61 defects per 1000 lines of code2, additional effort would need to be spent debugging and fixing potentially as many as 35K errors. Also, because the new application would be entirely new Java logic, a complete testing and certification process would need to be performed, as with any other new application.
Modernizing the original application with Informix Genero would reuse the 4GL source code. The 4GL source code would be recompiled with the Informix Genero compiler so that the application could run on various types of display clients. The compiler path in the build file could easily be changed to compile the Genero applications in the same build environment. There would likely be a few minor differences between the 4GL and Genero compilers and there would be changes needed for dealing with external C code. After any required changes would be made, the Genero application would be able to run in text mode, just like the original Informix 4GL application.
Configuring the Informix Genero Desktop Client would allow the Genero application to be rendered in GUI mode on Windows, Linux, and Mac operating systems. Creating a small XML configuration file for the Informix Genero Application Server would allow the same application to be rendered in web browsers. Testing the application could begin immediately. Because this application would be using the existing 4GL syntax and semantics, the functional and verification testing would require substantially less effort than for a new Java-based application.
The effort to enhance this application would need to focus only on the graphical user interface of the 100 screens that are -used frequently for data entry. The underlying logic could be left largely unchanged. The other 246 screens that are presented to the user could be deployed in a phased approach, perhaps 50 screens a month over a five-month period. The remaining 250 screens (and the underlying logic) could be left unchanged because they would be used infrequently by internal staff. Less effort would be spent on testing and the certification for the Informix Genero project than for the Java project.
The Bottom Line
Converting the Informix 4GL application to Java would take significant time and be expensive. The compatibility between Informix Genero and Informix 4GL saves time and money by leveraging the underlying business logic of the existing application. Informix Genero minimizes initial costs and efforts, and allows the graphical user interface to be enhanced over time while the application remains available to the user community.
1Gartner Group, "Forecasting the Worldwide IT Services Industry: 1999"
2Geoffrey Phipps, "Comparing observed bug and productivity rates for Java and C++," Software-Practice & Experience, v.29(4), p.345-358, 1999
About the author:
Shawn Moe is a software architect at IBM, focusing on UI modernization, SQL compatibility, application development, and tooling support for the Informix database servers. For more information, go to www-01.ibm.com/software/data/informix.
Press Release Summary:
Four J's Business Development Suite offers graphical development tool for Informix 4GL users. While preserving investments in 4GL source code, it enables developers to open applications seamlessly to wide variety of graphical computing environments. It provides N-tier thin client architecture and scales to thousands of users simultaneously. Users can write applications once and deploy anywhere, without recompilation for different operating systems.
Original Press Release:
Four J's Business Development Suite Offers a Graphical Development Tool for Informix 4GL Users
At a GlanceFour J's Business Development Suite:o Enables applications to run across heterogeneous client, database, and operating system environments for a single source code across the intranet and the Interneto Improves developer productivity by building on existing 4GL business logico Develops purpose-built business applications alternative to J2EE, EJB, .Neto Enables you to write once and deploy anywhere, without recompilationo Allows projects to be completed on time and within budget while focusing on the business logic rather than the infrastructureo Provides N-tier thin client architecture and scales to thousands of users simultaneously
OverviewFour J's is known within the Informix(TM) community as the author of Informix Dynamic 4GL, a graphical development tool for Informix 4GL (I-4GL) users.
The Business Development Suite brings new value to business applications written in I-4GL or Dynamic 4GL (D4GL). This robust and scalable application server platform accesses multiple databases (Informix, DB2®, Oracle, MS SQL, and MySQL) and GUIs (X11, Microsoft® Windows®, Java(TM), HTML, WML, and XML) with minimal effort. You can write applications once and deploy them anywhere, without the need to recompile for different operating systems (UNIX®, Linux, and Microsoft Windows NT®).
Using Business Development Suite, enterprises and independent software vendors (ISVs) can increase productivity and strengthen their investments in existing 4GL business logic, enabling them to address new user needs and market opportunities at a low cost.
The products in this announcement are available as a part of the IBM Developer Sales Channel Software Remarketing program. Product information has been provided by the program supplier, Four J's Development Tools, LTD.
Key PrerequisitesUNIX, Microsoft Windows 2000 Server, XP, AIX® 5.X or Linux 7.x and 8.x
Availability DateJuly 8, 2003
DescriptionFour J's Business Development Suite is the fastest way to reach Windows, the Internet, and mobile devices for existing and new 4GL applications.
While preserving investments in 4GL source code, development staff, and user training, Business Development Suite enables developers to open applications seamlessly to a wide variety of new graphical computing environments. Its three-tier, thin-client architecture offers unmatched application performance and scalability with server support for Windows NT, Linux, and UNIX platforms.
With Four J's Open Database Interface (ODI), connectivity is provided to database servers such as DB2, Informix, and other database servers through a library of native database drivers.
Thomas Industry Update
IBM's Past May Hold Clue to SAP's Future
What does SAP's acquisition of Sybase foretell? Look to IBM for one possible answer.
By Stephen Swoyer
What does SAP's acquisition of Sybase foretell? IBM strategy in acquiring another prominent 1990s data management leader -- the former Informix Software -- might hold some answers.
SAP co-CEOs Bill McDermott and Jim Hagemann Snabe say they're primarily interested in Sybase's iAnywhere mobile computing portfolio. Trouble is, Sybase isn't just a mobile computing company. It boasts creditable relational database (Sybase ASE), columnar database (Sybase IQ), data management (Sybase ETL, Sybase Data Federation, Sybase Replication), data modeling (Sybase PowerDesigner), rapid application development (Sybase PowerBuilder), and application- or industry-specific offerings as well.
Unfortunately for Sybase, SAP has a lot of data management know-how.
Customers are, naturally, wondering which Sybase offerings will SAP keep, and which are likely to be subsumed -- in whole or as little driblets -- by SAP's BusinessObjects-branded enterprise information management (EIM) portfolio, and which will disappear altogether?
IBM's 2001 acquisition of Informix could offer a blueprint for what will happen as SAP digests Sybase. In acquiring Informix, Big Blue came face to face with some of the same issues -- including the roughly analogous problem of assimilating a DM giant that had itself acquired a number of big-name technology vendors -- a problem SAP is now facing.
"Acquired" isn't technically the correct word, because although Big Blue picked up the rights to the Informix brand and to most Informix-branded products -- to say nothing of tens of thousands of Informix customers -- it passed on Informix's (formerly Ardent Software's) data integration assets.
Informix, like Sybase, had a lot of DM irons in the fire.
In addition to its flagship databases, it supported several platform- or application-specific database variants; Informix (like Sybase) also had a checkered acquisition history. It acquired data warehouse appliance pioneer Red Brick, and it had also picked up former DM vendor Ardent Software, to say nothing of object-oriented database specialist Illustra. (Ironically enough, Ardent, which survived IBM's acquisition of Informix, rebranded itself Ascential Software. Four years later, Big Blue completed the circle, acquiring Ascential, too.)
Big Blue still supports many of the Informix assets -- including the Informix 4GL programming language (which it now dubs IBM Informix 4GL) and even Informix C-ISAM (since dubbed IBM Informix C-ISAM), which still powers the (IBM) Informix Standard Engine (SE) RDBMS. IBM officials likewise promote Informix SE as a viable DBMS for embedded applications.
However, Big Blue hasn't done much promotion of any of these products, at least not as it has with some of Big Blue's other DM-related acquisitions (such as Ascential or Cognos Inc.).
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