Technology News

Posts Tagged ‘development’

The world has seen many technological advances, especially in the field of information technology (IT). In particular, the IT sector has seen the advent of computer users and forth motion of the electrons in transistors. It came to be known as photonic computing, one that uses light particles (photons). They are made of electrons instead of lacerations.

The advantages of using optical (photonic) communications in the future chip multiprocessor (CMP)

Many merit (the disadvantages) that arise from the use of optical (photonic) communications in the CMP. First, the use of photonic communications are necessary to ensure faster connections and transactions, compared to electrons.

This is because the light is able to travel about 30 centimeters in one nanosecond (forestry, 2005).

same time, the transmission of photons, compared to electrons, is expected to transmit large amounts of data and (an almost) immediately. This is because the photons have the highest bandwidth.

Advantages in the use of optical communications

optical communication is achieved by using nonlinear reflective index materials. The importance of optical communications components based on the fact that its optical effect transistors can occur with the creation of logic gates should then be assembled into higher-level components of the computer processor.

Using

above optical communications is useful, because the use of optical components in silicon photonics communication, leading to a minimal power consumption.

This lets out performance per watt, a feat that remains elusive to the extent that the use of all electronic interconnections are (Guo, 2002).

Two limitations of photonic network computing can solve compared to the size or scale components under discussion

The advantage of the electronic computer

photonic networks is that it allows its use A small band of photons to represent more bits in the binary system. Here, the use of electronic computers specifically about the 128-bit logic position. The kindness of this is seen in the fact that its own 123 000 000 000 bit positions contains a single visible spectrum (Shacham, Bergman, and Carloni, 2007).

Another advantage associated with electronic computers is that it allows data transfer over long distances at higher rates. This is because the power line is large enough. Computer communications perspective, otherwise the support of smaller amounts.

features a mesh network is essential to experience

a mesh network requires the use of two or more connections, it is quite clear that the experience is likely to seek to determine the best method of mesh network, a full mesh or partial mesh type. To this end, it is quite possible that the direct connection to another node or several nodes are selective connectivity to recognize the experience.

The advantages and disadvantages of using this approach to emergency communications in an area of ??the United States prone to natural disasters

disclosed by Takahashi et al (2007) The importance of the experiment is that predate the understanding of the best broadband access systems to be deployed as a means to reduce the digital divide, the highest point of the above research is the provision of medical care, even right around the remote areas like the old Yamakoshi village.

Conversely, negativity to realize that this company is the building are required to inhibit signal cascade leading party radio targets because of their long shadow. This is all to the extent that the urban center is concerned. As touching the rural areas, trees, hills and yet these features can cause choking.ConclusionCes

configuration above is from the set as a priority in network expansion and the planting of self-healing architecture. This will greatly reduce the cost of operation and implementation of facilitation of mobile networks is a reality.

Neo-Tech Publishing is a 35+ year writing company integrating philosophy, objectivism, business, and love. The Nouveau-Tech Society is a semi-secretive group emerging out of Neo-Tech correlating with the release of a massive writing project called Pax Neo-Tech.

Nouveau Tech is a major arm of Neo-Tech’s mission to rid earth of mysticism and bring about the rise of a super-society, a world of super rapidly advancing new technology (Neo-Tech).

The Nouveau Tech Society has emerged out of the marketing tactics of Neo-Tech Publishing as a secretive society of power, romance, wealth and health.

While monitoring the day-by-day edits that Frank R Wallace published on www.neo-tech.com as they happened, I watched the developments right up until his death. For 5 years I watched digital-dot by digital-dot every edit that Wallace made public.

I used services like Google Alerts to tell me precisely where and when changes throughout www.neo-tech.com happened.

I noticed the styles of writing change into the style of Pax Neo-Tech. I saw the exact additions, amendments, edits, revisions and deletions that Wallace made for Pax Neo-Tech. The layers of integrations added.

That helped me to understand the process and development of the Neo-Think mentality and matrix that Wallace was cultivating via this strange batch of documents labeled Pax Neo-Tech.

Here is one example of one of the newest edits that were made to Pax Neo-Tech.

Exhibit 1 from my Google Alert 30 Jul 05.

“As attuned readers proceed through Pax Neo-Tech, their accurate predictions yield ever-increasing power and profits.

Such readers learn to think honestly, widely, independently.

They learn to think beyond biases, opinions, and faiths. They learn to neothink…” – Frank R Wallace, Pax Neo-Tech

That paragraph was edited into the following in my Google Alert 27 Dec ’05. Just 2 months before Wallace’s death. (compare it with above).

Exhibit 2

“As attuned readers proceed through Pax Neo-Tech, their expanding insights and understandings yield ever-increasing advantages — Illuminati advantages of limitless power and profits.

Such readers learn to focus on essentials while simultaneously thinking honestly, widely, and independently.

They learn to think beyond biases, opinions, and faiths. They learn to neothink…” – Frank R Wallace, Pax Neo-Tech

“Focusing On Essentials Whilst Removing Anticiv Boundaries Delivers Limitless Neo-Think Power”

Pax Neo-Tech has been taken down from public access now; I’m hoping to get my hands on a copy of the later chapters of Pax Neo-Tech later this year.

Pax Neo-Tech was the publicly edited matrix that Frank R Wallace was working on at the time of his fatal traffic accident during his daily morning jog.

This new work explored modern day events whilst adding universally permanent insights about the nature of man’s evolution and ascension into modern technological man. In places Pax Neo-Tech is an easy read, in others it’s difficult, and sometimes entertaining, and sometimes stomach churning. I don’t claim to understand it all, and I look forward to the day when I can plum it fully for all its life advantages.

As an Englishman with an interest in English history, I thought it would be interesting to recount the history of television and the invention of John Logie Baird, in order to Ally Pally in London. The British Broadcasting Company began daily broadcasts 14th November 1922, when more than one million ten shillings (50p) licenses had been issued. In 1927 the company was reorganized as a corporation at the BBC as we know it today, by its founder, John (later Lord) Reith, but then an even newer technology has been developed to show TV.

In fact, the company was very interested in the television invented by John Logie Baird experience and wanted them to continue under their sponsorship, and not by another company. As a result, the company using the facilities offered Baird on the south bank of London. In 1932 the BBC were quite happy to allow the regular dissemination of experiments. They are now available Baird a studio in their newly acquired land in Portland Place, W1. Studio BB was Britain’s first dedicated television studio in the basement of the Maison de la Radio is, and that’s where Baird continued to experiment and refine the new medium. Competition in the electronics industry and music (EMI), in Hayes, Middlesex, where she had worked with the Marconi Company on the development of a high-definition based. In May 1934 the British appointed a government committee, headed by Lord Selsdon, begins to investigate the feasibility of building a public-service television, with recommendations for the conditions under which such a service could be offered. The report’s findings were published as a White Paper Selsdon Government until January next year. The BBC has been asked to guide the development of television, which had to happen to a definition of not less than 240 lines with a minimum of 25 frames per second. In publishing this report, the age of the image in low resolution ended with the ballerinas appear Lydia Sokolova, the last artist in the UK by the old-line system 30.suggested the committee that the two new systems for high-definition (Baird 240 line and Marconi-EMI 405 lines) for the replacement transmission would be by the BBC chosen over a fixed period, up to this it was decided what was best. Looking for a suitable location for the new service, the BBC Alexandra Palace in Haringey has chosen Greater London. Its location on a hill, making it the ideal place for a station that would be all over London and surrounding counties put some of his cover. Introduced

With these words, Leslie Mitchell Britain’s first high-definition program, on public television from Radiolympia. The date was 26 August 1936. It was the world’s first television broadcast. At the beginning of the war in 1939, more than 80,000 spectators were watching TV seven days a week.

During

1 September 1939, while Mickey Mouse was shown on television, has become the TV went blank and all in the air. The program in 1946 and returned to BBC radio and television, has grown in strength. John Logie Baird sent pictures rudimentary short

May 1925

Baird gives the first public demonstration of television

27 January 1926

Baird TV shows wirelessly to the Royal Institution in London

1 January 1927

The BBC is a public company

1930

22 August 1932

BBC launches 30 online tests using the Baird system (up to September 1935)

2 November 1936

405

launch online services in high definition (for a few months together with Baird 240 line system)

12 May 1937

First aired outside

: procession of the coronation of King George VI

1 September 1939

Chassis

television because of WW2

1940

1 June 1946

television license fee introduced

7 June 1946

Resume Services Television

after the war

December 1949

BBC Television Service begins to spread outside of London.

1950

27 August 1950

at the first cross-channel diffusion (from France to England)

2 June 1953

The coronation

broadcast, seen by C. 27m viewers is broadcast in the watershed. Used 21 cameras

6 June 1954

Great Britain joined the Euro-vision system.

5 Begins in July, 1954

Daily News

1954

weather presenter on

First screen -

George Cowling

4 August 1954

Creating

Independent Television Authority, a public company

22 September 1955

Home

independent (ie commercial) television in the London region of Associated-Rediffusion Television, and associated with the nonprofit Independent Television News

1956

Independent Television Service begins outside of the SE . spread Regional>>

1958

TV homes via the radio-only households

April 1958

at the first video broadcast by the BBC (VERA) system

26 June 1958

Associated Rediffusion-shows the first program of Ampex VTR, which is the established format.

1960

April 1962

at the first video in slow motion play back

1 July 1962

Pilkington report published recommend the second BBC program, separate from the service of BBC Wales, changing the default line 405-625 lines, 625 lines color UHF and the restructuring of ITV

11 . July 1962

first transatlantic satellite spread.

20 April 1964

Home

BBC2 on UHF 625 lines. More>>

26 April 1964

BBC2 review program begins for new viewers who are deaf

1 July 1967

start transferring ink on BBC2. More>>

August 1967

BBC starts with all-electronic, color, frame-rate standards conversion

30 July 1968

change

ITV franchises. LWT replaced ATV London, Yorkshire TV region Granada is part of a new town, replaced Harlech TWW; Thames from ABC and Rediffusion formed. VTT has the whole week to Midland franchise. Granada is a weekly franchise NW.

21 Observed in July, 1969

BBC and ITV early stages of human night of hearings on the moon. More>>

15 November 1969

Color

service on BBC1 and ITV, was inaugurated. More>>

1970

> in early 1972

2 February 1973

Teletext system

shown by the BBC. IBA has also developed a system, teletext

1974

cassette video recorders for sale

1976

Solid Color

majority b / w sets

1978

Opening the BBC tape library

combined film and video, and the end of junking policy.

1980

1 January 1982

Changes

ITV franchises: Biking, South and Central Westward soft, television and TSW

1 November 1982

Home

S4C (Sianel Pedwar Cymru / Channel 4 Wales), with all programs in Welsh, the BBC and two independent, the transition to this new channel

2 November 1982

Home

Channel 4 in England, Scotland and Northern Ireland

17 January 1983

Home

television by the BBC Breakfast, followed by (1 February) tvam network ITV

January 1985

closing of the last 405-line transmitter

February 1989

Home

domestic satellite services from Sky Television

September 1989

First official NICAM digital stereo broadcasts of ITV

21 November 1989

Broadcast begins the House.

1990

1990

Opening

of British Satellite Broadcasting (BSB)

1990

Sky and BSB merged to form BSkyB

1 January 1993

Changes

ITV franchises: Thames, TSW, TVS, tvam soft Carlton, Westcountry, Meridian, GMTV

March 15, 1996

BSkyB’s first pay-per-view event: Boxing in Las Vegas

30 March 1997

Home

Channel 5 Required retuning of millions of video recorders to avoid interference

1 Begins in October, 1998

digitally via satellite.

15 Begins November, 1998

digital terrestrial services, including emissions digital big screen

2000

June 2001

BBC

first interactive program.

May 2002

closure of ITV Digital (formerly ONdigital)

30 October 2002

Opening

of DVB-T digital terrestrial service ITV Digital multiplex replace

29 December 2003

regulation of commercial television would be after the merger of CCI and other regulators Ofcom

28 to 29 January 2004

BBC Chairman of Governors and the Director General took part in both the Hutton report

2 February 2004

merger of Granada and Carlton

is completed. Merged company to be called ITV plc

May 2006

Start service in high definition.

n ‘The Iceland of Heroes “, which I think sums up what we are all British. We British are curious and competitive and are always looking at the horizon for the next adventure and discovery.

Recently I decided to write about my favorite subjects: English Education, English history, symbols, English discoveries and inventions in English. Currently I have written over 100 articles I call “An Englishman in England favorite bits” in different volumes. 

Micro-Tech commenced in 1986 as a subsidiary of the international hearing devices leader, Starkey Laboratories. Located in Eden Prairie, Minnesota, Micro-Tech was established with the intent of furnishing the hearing-impaired with compact, fashionable Micro-tech hearing aids which in spite of their dimensions should achieve good sound clarity.

In the interests of implementing such a standard, the factors depleted in Micro-tech hearing aids are of exceptional quality, and put in gold battery contacts hybrid microchips. Every Micro-tech hearing aid is subject to rigid quality control testing as well.

Micro-Tech even funds the annual trip that some of its audiologists take to Mexico, where properties fit indigent hearing-impaired folks with Micro-Tech hearing aids.

Audiologists are also important contributors to the development of innovative technologies for the users of for Micro-Tech hearing aids, and Micro-Tech is involved in providing educational programs for hearing specialists throughout several institutions including the American Academy of Audiology.

Micro-Tech Innovations

Some of the Micro-Tech hearing aid innovations have included the remarkable proprietary DiRx directional technology which allows Micro-Tech hearing aids users to adjust such a microphones in the directions of a speaker, both amidst additional clarity to his or her expressions and shutting out noises arising from other directions. The Caballo, Denali, and Dx3 Micro-Tech hearing aids can all be constructed with DiRx capability.

Micro-Tech was also responsible for introducing one of the earliest completely-in-canal, or CIC, hearing devices. The first of the CIC Micro-Tech hearing aids appeared in 1993, and has been followed by nearly fifteen years of advancements in miniature but technologically sophisticated hearing devices. CIC Micro-Tech hearing aids can be put up at their cutting edge laboratory to include any of Micro-Tech digital circuitry.

Micro-Tech has even designed its own line of batteries to use investing in Micro-Tech hearing aids, with gold-plated contacts to guarantee maximum conductivity.

Micro-Tech and Kids

Micro-Tech, in an go to ease the discomfort of children who have carried on diagnosed with hearing impairment, may provide a ?custom care package? for delivery investing in the child’s behind the ear Micro-Tech hearing aid. The packages can include everything from stickers and removable tattoos to coloring books and plush animals–and they are all free!

To help children learn responsibility for taking care of their Micro-Tech hearing aids, Micro-Tech bids Mr. BTE, a plush frog-like doll with key pockets, one of which contains a dehumidifier for the hearing aid.

Micro-Tech’s concern for the impoverished hearing impaired n Mexico and its ?custom care packages? are only two signs that it is a company with a heart, to which customer advantages will always be the top priority.

Every development project is a software programming language code (front end) and database support (backend).

Produce software is a very complex process that takes time to develop. Poorly designed software systems are difficult to understand and maintain. Change the code in one place lead to undesirable consequences elsewhere because of high coupling. Adding new features can cause further deterioration in the quality of the code, if a good design and architecture concerns are not being implemented. Development in a large company with such attributes over time lead to a variety of problems when the system periodically repaired or reworked in some way.

Software Maintenance

may take up to 50% of the total development of software production. One of the main characteristics of this high cost is the poorly designed code, making it difficult to understand for developers to test the system before implementing the new code. Within the software engineering process has refactoring software a direct impact on reducing the cost of software maintenance, by the internal structure of code to the design, to develop the current and future developers to understand and helps to increase system.

In this article we will mainly discuss the database and the code refractoring that these two main components of the software development

keywords

: refractoring Refractoring software, database , Software Maintenance

a database refactoring is a small change to a database schema that improves design, without a practical level, the semantics of the database. In other words, it is a simple transformation, the database adds even more to ruin. The process of transformation is defined secure database, a database schema developed in small steps. Refactoring database allows professionals to work data in an evolutionary way, as an application developer to modern. It also offers a coherent strategy for organizations to dig their way out of the hole existing database.

a database refactoring is a simple change of a database schema that improves the design while retaining both the behavioral and semantic information of the sound. For purposes of this discussion, a database schema includes both structural aspects such as table and view definitions as well as functional. Aspects such as stored procedures and triggers is an interesting thing to note that the database refactoring is conceptually more difficult than a code refactoring;. Code refactorings need only maintain the behavioral semantics, while database refactorings must also hold informational semantics

2 Why Database Refactoring It

are two main reasons why you assume Refactoring Databases:

Refactoring database, you can create a secure upgrade your database design in small increments so that there is an important technique for the improvement of existing assets within your organization. This is clearly much less risky than a “big bang” approach, where you write all your applications, and modify your database schema and liberate all the production processes at a time. In addition, it is much better than “Let’s try not to let, is it worse all” approach currently used by the vast majority of data management groups which I have taken a strategy that has no hope of success, because all what you need is a team of developers of data-management group tour and make a bad database design.

The result is that the existing database does not resolve itself, and a technical point of view is database refactoring to improve the safe and simple data and data quality over time. July 2006 survey in the current management of the data shows that 33% of the organizations are, or plan, a concept based on refactoring of existing problems of production quality address data.

modern software development, including the Rational Unified Process (RUP), Extreme Programming (XP), Agile Unified Process (AUP), Scrum, and Dynamic System Development Method (DSDM), are all capable of development by nature. Craig Larman [4] summarizes the results of research and the overwhelming majority of opinion leaders in the IT community, in support of evolutionary approaches. Unfortunately, most data-oriented techniques, serial in nature, focusing on relatively narrow specialists perform tasks such as data modeling logical and physical data modeling. Therein lies the rub of the – must work together, the two groups, but both want to do it in different ways. I believe that data professionals on evolutionary techniques, such as database changes must take so that they are relevant to its modern development teams. Fortunately, these techniques do exist and they work very well, it is now for professional data to decide to accept it.

Database refactoring as

three step process:

1 Open

in your sandbox development

2 Implement in your integration (s) sandbox

3.Install

production

sandbox development

your technical environment in which your software, both Your application code and database schema development and testing of the device. The need to refactor your database schema is usually through an application developer trying to implement a new requirement is identified or a default setting. For example, a developer may need to extend their application to accept the postal address in Canada in addition to U.S. addresses. The main difference is that the addresses in zip codes such as 2C3 Canada instead of zip codes like 90210-1234 R2D have. Unfortunately, the column of the table ZIP code address space is digital and therefore will not support Canadian postal codes. The application developer describes the necessary changes to an Agile DBA (s) on their project and the effort of transforming the database starts.

As shown in the figure of the Agile DBA and application developers typically perform some or all of the following steps to implement the restructuring:

• Verify that a database refactoring is required

• Choose the most appropriate database refactoring

•

devaluation of the original rules

• Write unit tests

• Change the database schema

• Migration of data source

• Update program

external access

• • Update your data-migration script (s)

Run your regression tests• Advertise refactoring

• Version control

your work

After a few days have passed, are You ready to implement your data within your database refactoring sandbox project integration. The reason you have to wait until it is done in order to give your teammates time to refactor their code to use the new scheme.

The teams that have chosen

encapsulate access to their database through the use of a persistence framework, it is easier to react to changes in the pattern base and can therefore hold that the period between them the implementation of a database refactoring in a sandbox and development in their sandbox-pull integration project. This is because the database schema is represented in the metadata, so many changes in the structure database is updated to not require the metadata and the source code. Deploy

To every sand box, you need both your application can create and your scripts (may help tools such as Auto Patch) Management Database The next step is to run your regression tests new, make sure your system is working -. if not, you have it in your development environment, and redeploy to fix again. The goal in the sandbox integration project is to check whether the work of everyone in your team works together, so check that your goal in the sandbox for testing / QA, if your system works well with other systems within your organization is.

A significant part of the use of database refactoring in your test / QA sandbox, I am now using the plural because you are used to introduce multiple databases are factors in this environment at a time, is communication. Long before to modify your database schema must communicate and negotiate changes with the owners of all other applications that can access your database. Your corporate directors are involved in these negotiations, they may even facilitate the efforts to ensure that all requirements of your organization are met. Fortunately, the process you followed in your sandbox development, leaving this aspect of database refactoring easier:

• The Agile DBA a single database refactorings that can reasonably be implemented. – If another team of application not to work in a position their code to the new scheme to access, then you can not make the change

• The documentation, even if only a brief description of each change, the DBA Agile wrote is important because it provides an overview of the changes that are to be provided.

• The model of the new version of the physical data (MPD), which were used as an updated database refactorings, serves as a focal point for negotiations with other teams. Agile Modeling (AM) would consider the PDM on a model contract “that” the team with the teams from other applications, a model that they can rely to be accurate, and they can expect to participate actively in negotiating changes .

installation in production is the hardest part of database refactoring, especially in the complex situation of the figure. In general, you do not have to provide their own database refactorings, but that you implement in the global deployment of one or more systems. Rollout is easier when you have an application and a database update, and this situation occur, however, in practice, but realistically, we have the situation where you have to consider the use of multiple systems and multiple data sources at once. Insight number of steps in providing refactorings in your production.

provides the best possible scenario for database refactoring – if your application code linked to your database schema diagram shows the worst-case scenario for the efforts of refactoring. Databases in which a variety of software systems, your database schema, a situation that is very common with the existing production facilities are coupled. To facilitate transfers to your schéma.Veiller following tests is small place.Faites pas.Programme not publish data models for personnes.Ne prématurément.La must document reflects the need refactoriser.Testez frequently.

A change in the structure of the tables in the database schema.

A change, and / or provides improved consistency and application of the values ??stored in the database. A change to a referenced row exists in another table and / or ensure that a line that is no longer necessary, offers accordingly. A change in the aggregate the way external programs, improved to interact with a database. A change that improves the quality of a stored procedure, stored function or trigger.A change that changed the semantics of the schema of the database by adding new elements or by modifying existing products.

Structural refactorings

DROP COLUMNDéposer the tableau drop VIEWPrésentez column calculéePrésentez key substitutionFusionner colonnesFusionner the tableauxColonne DéplacerRenommer the colonneRenommez tableauRenommer VoirRemplacer the LOB with the tableauRemplacer colonneRemplacer One to many associativeRemplacer spare key table with the keys of naturellesColonne SplitScinder tableauRefactorings

the Data Quality

Add code lookup TableAppliquer standardAppliquer Type StandardConsolider strategy cléContrainte column default chuteValeur chuteBaisse not ContraintePrésentez Nullable constraint colonnePrésentez format communPrésentez not the column value défautFaire nullableDéplacer donnéesRemplacer the Code property with the type of referential DrapeauxIntégrité

refactorings

delete add-constraint for the column étrangèreAjouter trigger calculéeDéposer Key Constraint étrangèrePrésentez Hard-deletion cascadePrésentez SupprimerPrésentez douxPrésentez trigger-to histoireRefactorings

Architecture

Add a table CRUD méthodesAjouter miroirAjouter Read MéthodeEncapsuler table VuePrésentez method calculPrésentez IndexPrésentez Readonly tableauMigrer method donnéesMigrer method donnéesRemplacez the method (s) with vueRemplacer Show With method (s) Use official source donnéesRefactorings MethodAdd expression conditionnelleDécomposer conditionnelleExtrait MéthodePrésentez variableParamétrez MéthodesRetirez flag contrôleRetirer MiddlemanRetirer RenommerRéorganiser paramètresMéthode the literal

not paramètresRemplacer Lookup TableRemplacer expression with nested clauses GardeRemplacer setting with variable methods spécifiquesFractionner temporaireAlgorithme replacement refactoring transformations

Insert New donnéesPrésentez colonnePrésentez New tablePrésentez VoirMise Update Data

8.Tools Help

those of the matter requires a lot of repetitive tasks. The good news is that every time you run into in repetitive tasks in software development, you are ideally placed to automate them. Accordingly, we have developed a good amount of tools, often easy to us. help

One of the most valuable pieces of automation is a simple collection of scripts for common database tasks.

make user updated with the current master. Create a new utilisateurCopie a database schema, for example, Sue found a bug with its database, now can try to copy Mike and Sue database to debug the application data base to move a database, such as from one workstation to another position, It is essentially a copy of the databases and delete a combined seulSupprimer utilisateurExporter a user can make to a team of database backups, they work offine avec.Importer a user when team members have a backup of the database, they can create and import the backup to master a copy of the backup database – a new schéma.Exporter a baseline. This is a special case of the export of a report utilisateurCréer a difference in any number of patterns, so that Mike can know what is structurally different from the database and Sue.Diff a provision against the champion, so developers against their local copy of the maître. Compare List all users

Finally, the database refactoring is a technique that implementation of databases, such as code refactoring is a method for deploying applications. You refactor your database schema for easy additions. You often find that you have to add new features to a database, such as a new column or a stored procedure, but the existing design is not as good as possible to easily support the new functionality. You start with the redesign of your database schema to facilitate, to add the function, and was used after refactoring is successful, add the function. The advantage of this approach is that you slowly but steadily, and improves the quality of the design of your database. This process not only makes your database is easy to understand and use, it also makes it easier, over time, in other words, improve your productivity

.

Experience is

that similar data professionals from the introduction of modern techniques of evolutionary benefit where the developer can, and that database refactoring is one of the most important skills that professionals need data. evolutionary development approach has certainly become a standard in the IT community and Agile software development, the evolutionary methods expand to become more efficient professional data to make scalable and flexible concepts and techniques seriously. they are true, they work, and you are here to stay

.

Refactoring is a rigorous method for restructuring an existing body of code, changing the internal structure without changing its external behavior. His heart is to preserve a series of small changes in behavior. Each transformation as “refactoring” is little but a series of transformations can produce a significant restructuring. Since each refactoring is small, it is less likely to go wrong. The system is also fully working after each small refactoring, making the chances that a serious system during its restructuring.

refactoring can break your

restructured code in a simplified or efficient in a disciplined manner. Refactoring software code improves its internal structure without external functions more efficiently, run faster download speeds and simplifies updates.

Refactoring is the art of redesigning the code in a simplified or efficient in a disciplined manner. Refactoring improves the internal code structure without altering its external features, functions and rethinking of the conversion algorithms. Sun Refactoring is an iterative process. By refactoring in your browser, Flash and Java, you can simplify its size in order to simplify the code and the speed and download speed.

Martin Fowler, who wrote the book on refactoring, called the changes “Transformations.” Individual transformations can make small improvements, but taken as a series of transformations can significantly improve your code. Refactorings are to reduce the scope, replacing complex statements with simple instructions, or integrated, and the combination of several statements in a declaration of a simple example that replaces an assignment to a boat So instead of: ..

Do this:

Design

continue to add more flexibility in the design, by designing a simple, first to demand rather than a large upstream design. Way to develop the design, since the code is growing. There is a change in the production of software for their growing. The process of transformation can be used to contribute to these changes in the government code.

Refactoring improves the design of logicielsSans

re designing the program will fall apart. poorly designed code usually takes longer, is to do the same things that

often for the same thing in different places

refactor the code easier in most software development environments to understand, someone else eventually will have , read the code, so it is easier to understand for others.

Refactoring helps find errors

It helps to find errors in the program.

Refactoring helps to quickly program

It helps us understand the coding / programming quickly, as we have a better understanding of the situation.

refactoring, the process of clarifying and simplifying the design of existing code without modification. A behavior-refactor the code red red rather takes various forms. unhealthy dependencies between classes or packages, poor distribution of responsibilities of the class, duplicate code, and many other sorts of confusion and disorder. (Check this list of “design smells .”)

Red

get the code difficult to maintain or expand making. Every time we change the code refactoring, but it complicates the red and spreads. Code red frustrates us costs us time and shortens the useful life of inappropriate systems.

refactoring to prevent code rot

mercilessly, keep the code easy to maintain and expand. This extensibility is measured by the success and refactoring. This allows teams to embrace change XP arbitrary and drastic. Note that the XP practice of Test-Driven Development (TDD) is essential for refactoring. Produces extensive testing by ATS, we have to make sure and ordered to changes of any kind. Therefore, the adjustment is still teaching TDD and refactoring together.

What does mean “refactor mercilessly”? This means trying to keep a question of routine the code simple and clear. That means knowing the design principles and patterns that are important for maintaining scalable code and know when to “refactor toward” them. It means both the production code refactoring test code and often during the day, the elimination of all forms of “code smells”, the precursor of red are true.

In most cases, that is never home at the end of the day go with “debt-code” which may be paid tomorrow (smelly sections that need to be cleaned) must. The level of hygiene code may at first glance like a lot of extra work, but you will pay the dividends so quickly and so regularly that you will soon you ddicted -. Rather than TDD

refactorings have become

as opposed to constantly fiddle with the code, they are limited and specific. Martin Fowler describes definitive book on the subject of 72 specific “Refactoring” by name (for example, “extraction” method, which extracts a block of code from a method, and created a new way of doing this). Each refactoring converts a portion of the code (a block, a method, class) to hear one of the 22 well “stinking”, said a more optimal. It takes a while to learn to identify opportunities for refactoring, and refactoring, to implement correctly. This practice is in the heart of the business-software-top.

At a refactoring, TDD has the same rate as any change in the code. You have your automated tests. They begin with the transformation of the smallest discrete change, which you can compose, run, and function. Whenever possible, make the changes by the existing code in parallel. Perform the tests. You can then discretely the next small change, and run the tests. When refactoring is in place and test clean all work, go back and remove the smelly old code in parallel. Once clean, the tests after you are done. Badabing, badaboom. Is cleaner code, no new bugs

Fortunately, the increasingly integrated development environments (FDI) is built to automated refactoring support. For example, the adaptation favorite Eclipse IDE for Java, the more self-confidence includes refactoring the whole time. Another favorite is IntelliJ IDEA.

refactor the code in Eclipse or IDEA, you choose to factor out the code you want, go to the specific refactoring need a menu, and the IDE does the rest for the hard work. You are invited to do appropriate for new names for things, naming, and similar entry. You can instantly increase your tests to make sure that the change not to break. If something was broken, you can simply cancel and refactoring to investigate.

refactoring process consists of a number of different activities, each of which can be automated to some degree:

(1) Identify where software should be updated

be ( 2) Determine which refactoring is to identify sites

apply (3) Make sure that the applied refactoring preserves behavior

(4) Apply the transformation

(5) assessing the effect of refactoring on quality characteristics of software

(6) consistency between the code-refactor-care program and other software artifacts (or vice versa).

Measures should be taken in the application of refactoring to be small enough to monitor their impact and reproducible to allow others to understand. Steps of a refactoring on a widespread, are more the rule that any structure can be applied.

Refactoring Fowler

as proposed includes not only the mechanics of the restructuring, but also to the following questions:

• Refactoring indicates that in the absence of guarantees should be more formal testing be used to ensure that any restructuring will preserve behavior. A comprehensive test suite should be built, must be applied before and after each test to be performed.

•

refactorings are described in a catalog, to think with the help of a model on the design pattern.

• Refactoring in small steps, one applied after the other, running the test suite after each step to make it in business development tools.

refactoring techniques Soon

Add paramètreMéthode RenommerRetirer the paramètresDéplacer champExtrait méthodeExtrait of the classeExtrait interfaceMasquer déléguésTirez MéthodeAbaissez MéthodePoussez on terrain inline in the classeMéthode ligneEncapsuler terrainRéduire the hierarchy, etc.

A fragment of code can be grouped to make it a procedure with a name that explains the purpose of the procedure.