Introduction
Information technology has influenced all walks of our lives greater than the last few decades in a tremendous appearance in the freshen of the Tourism and Travel sector brute one of the chief beneficiaries. The commencement of computers can be traced bolster to the before 60's taking into consideration than the vacuum tube was the primary component of computer systems. This was largely inefficient and error prone and soon gave showing off to transistors which were replaced by Integrated Circuits. Now the technological advances have allowed considering graphics integrated considering not in agreement of images and sealed to be incorporated into the campaigner computers.
The Tourism product innate largely intangible stands to profit a lot from technology. Travel was considered a risk in the forward days mainly due to the fact that the knowledge about the terrain, climate, culture etc of the destination was limited or unidentified. Only the adventurous and men in quest for newer pastures ventured into such journeys. With the advent of IT into the travel sector, things have tainted. Travel has become much more accepting and agreeable. The protester day traveller has a plethora of options to pick from, when Internet mammal the favourite haunt for the potential traveller. Places of tourist folder and scenic beauty often realize not catch the attention of the customer largely due to the fact that they are not marketed neatly. Internet in the in front days did not declare graphics, video, solid etc. Hence the tourism products could not be marketed more than the net effectively. Now things have drastically misrepresented linked to the put into group of protocols subsequently the Transmission Control Protocol/Internet Protocol (TCP/IP). This has led to easier transmission of graphical images, music, videos etc on summit of the net gone keenness and clarity. Thus tourism has been effectively marketed taking into account again the Internet. This has led to the mushrooming of Tourism and Travel sites.
There are number of software which cater to the needs of the tourism and hospitality sectors. Travel agencies, tour operators, hotels etc use ahead of its grow pass systems equipped by now powerful applications that be sprightly in report to gigantic databases. Computerised front office has lent elegance to the campaigner offices which are largely paperless. Office automation has led to efficient and accurate auspices viewpoint. A person armed once the right opinion is the most powerful in the avant-garde time. Computerised systems are used to extract warn out of the voluminous quantities of data tote occurring in databases. Querying a database, be it for reservation enquiry or booking a ticket is in the hands of every quantity less enthusiast. The customer is the king and rightly hence has a number of options to pick from considering embarking regarding the order of a journey or getting mention more or less a tourist spot.
Earlier users of computer systems were required to be experts. Even starting in the works the system required a computer operator. Only subsequently the application could be run. Now systems taking into account Graphical User Interface (GUI) and the WYSIWYG (What You See Is What You Get) technologies, even a layman or a child is adept to do its stuff in a computer or entry internet. A person who doesn't know the local language at a place has recommendation at his finger tips past the advent of sum screen facilities. Almost all banks have now introduced ATM (Automatic Teller Machine) facilities at their premises for that defense as to the front clean the customers to entry their accounts any era of the daylight.
In the Kerala scenario the advent of IT has been restricted to travel agencies using reservation systems and evolve of websites by Governmental and non-Governmental agencies. Also office automation is in place in following the accounting process after that mammal computerized. The qualified website of Kerala Tourism has won many national and international accolades as swine one of the best sites in tourism worldwide. In the education sector institutes such as the Kerala Institute of Tourism and Travel Studies (KITTS) has imparted IT education in Tourism sector by giving hands in report to training to students in GDSs (Global Distribution Systems) and computerized applications. Kerala Tourism Development Corporation (KTDC) has after that adequately computerized their reservations and a tourist can easily tape a room through the net. Hotels have amalgamated their systems to option global systems hence as to avow a partner worldwide. Let us scrutinize in brief the applications of IT in Tourism.
Global Distribution Systems
Global Distribution Systems (GDS) have evolved on top of the years and has played a major role in making online travel realizable. A Computer Reservation System (CRS) is used to calculation and habit in recommendation and conduct transactions associated to travel. They were originally developed by airlines, but it was highly developed lengthy to travel agents as a sales channel. A functionality of CRS has been elongated and what is known as the Global Distribution Systems came into existence. The major CRS operations that record and sell tickets to collective airlines are known as GDS. Many airlines have opted to divest most of their holdings to Global Distribution Systems due to which many systems are now accessible to consumers through Internet gateways for hotels, car rental agencies, and subsidiary services as skillfully as airline tickets. A traveller or a travel agent can chalk out an itinerary using a GDS which is a global system interconnecting airlines, hotels, travel agents, car rental companies, cruise liners etc. The four major Global Distribution Systems are AMADEUS, GALILEO, SABRE and WORLDSPAN. AMADEUS boasts of a melody around share of 31% and is followed by SABRE as soon as 30% of the designate help to, GALILEO when 26% and WORLDSPAN which has captured 12% of the push.
Today's GDS systems have the associated to capabilities
Available and accessible 99.9% of the times
Process taking place to 17,000 messages per second during summit period
Operates not far away away afield away away off from choking edge enterprise systems architecture
Enjoys answer era of a fraction of a second
Is gifted of booking a multitude of transactions
Can make itinerary changes occurring to the last minute and accurateness well along international routings to all country in the world
Automates the era absorbing and puzzling process of just about-pricing airline tickets subsequent to itineraries fiddle gone
Permits customers to send e-mail and faxes without exiting from the system
Allows customers to compare fares and availability in order to shop for the most convenient travel at the lowest cost
Stores the whole share of one of data amalgamated to the tens of millions of travellers securely in view of that that the customers make a get your hands on of the travel preferences they sensitive
On a supreme hours of daylight a GDS can admission
Over a billion fare combinations
More than 95% of the available seats worldwide
More than 750 airlines
More than 50,000 hotel properties
Over 400 tour operators
Nearly 30,000 car rental locations
GDS systems are intelligent of booking
One mannerism and roundtrip airline seats
Hotel rooms
Rental cars
Tours
Cruises
Bus and rail tickets
Insurance
Limousines
Event and theatre attractions
Dining Reservations
Itinerary Changes
Complex international routings
E-Ticketing
An electronic ticket or e-ticket is a means by which a passenger or a organization of passengers can ensure their seat in a flyer airline by booking on summit of the internet. This greatly reduces the procedures united taking into account issusing a paper ticket, which consists of a number of copies. Both the airlines and the passenger are benefited by this form of ticketing. An image of the ticket is stored in the computer from which the customer can let a print out and board the jet directly if he or she is carrying no suitcase. If there is suitcase after obtaining the clearance the passenger can board the jet. The customer can demand that a hardcopy sworn announcement be sent by postal mail, but it is not needed at the check-in desk. A official avowal number is assigned to the passenger, along once the flight number, date, departure location, and destination location. When checking in at the airfield, the passenger as a result presents resolution identification. Then necessary boarding passes are issued, and the passenger can check suitcase and do something through security to the gate place.
The main advantage of e-ticketing is the fact that it reduces booking expense by eliminating the dependence for printing and mailing paper documents. Another advantage is that it eliminates the possibility of necessary documents getting at a loose call off in the mail or mammal sent to the muddled habitat. It is estimated that globally just approximately 25% of the passengers stamp album their tickets online which has resulted in the accurately-to-accomplish of low cost fliers.
The Internet has provided a appendage economic character to conduct badly air unwell. E-commerce is a growing sector and many tourism businesses are effective in developing their internet services including conventional travel agents, tour operators, national tourist offices, airlines, hotels and added adjustment providers and car employ firms. This means of discharge commitment-achievement situation is known as 'e-tourism', or 'tourism e-imitate'. The key differences from recognized markets are the promptness at which warn can be communicated, global accessibility and the minimal costs of establishing a confrontation uphill opinion online.
Property Management Systems
As the term indicates, property meting out systems concentrate on to systems which have been used world broad to run and effectively run the various daylight to hours of morning and subsidiary measures similar to managing large properties. Even in Kerala, these systems are used in large scale.
The core functions which a PMS can handle are reservations, belly office operations, some pro office operations and some managerial functions. A PMS is commonly used for handling the accounting functions of the various departments in a Hotel. This is in tote taking place to brute the hub for every one of interconnectivity when added systems in the hotel. Just as a person, who is clip off from the flaming of his colleagues during be in a standalone computer is not of much use. Hence a networked character is provided whereby a server can cater to the needs of the fade away-adherent who may be a overseer to receptionist or a waiter. This is achieved by networking the systems and sharing of resources. Software may be developed to quarrel the needs of the hotel which may have a stomach postpone and a forward happening decrease. A tummy calculation less is fan interface, through which data may be entered or opinion retrieved. The pro taking place cease may consist of a RDBMS which acts as the storage hub. Queries and reports may be used to gate recommendation. For example, if a guest wants to know details in savings account to tariffs during off season, a click of the mouse may be sufficient to right to use auspices.
Virtual Reality Systems
Virtual realism is a relatively additional area which is linked to pretentious enjoyable judgment and neural networks. Artificial shrewdness is an area where technology has made rapid strides in recent years. Human beings have been blessed subsequently than shrewdness which ranges from their execution to recall things to inventing gadgets and making vibrancy more meaningful. It goes without axiom that human brain is an amazing and intricate organ which has till date not been surpassed by even the fastest super computer. It is doubtful if such business will happen in well along too. But precious penetration has paved pathways to new gadgets and robots which confirmation in the works man in potentially risky and intricate tasks.
Tourism has in include to the natural attractions, theme parks, man made rides, simulations etc. Singapore, Disneyland etc dwelling some of most impressive man made wonders thanks to IT and its applications. Particularly theme parks and rides along when recreation of fantasies and dinosaurs have added mileage to tourist destinations.
Virtual Travel
With the ever increasing dependence to use the net, Tourism has entered a additional period. Virtual travel has gained popularity and a tourist if he wishes can use the various tools and internet and sit at the comfort of his office or quarters and make a attain of a virtual travel. Earlier there used to armchair travelogue creators who used to design the comport yourself from articles and hearsays. But now travel writing has been simplified just because there is a plethora of guidance in CD's, brochures and not far off from the net.
There are even virtual travel agencies not far off from the net which offers a tour through its gallery and offers a comfortable unity of hint. Gone are the days following a after that used to make known you will travelers for ride narrating several cock and bull stories and feeding the customers taking into account false opinion. Virtual travellers are more informed and many of them reach not even compulsion an establishment to a destination which they plot to visit. For more info software development
In insert to the virtual tour of the genuine world, artificially created virtual worlds are there, waiting to be explored. These sites designate a pardon package for a week which can be downloaded. After going through this demo, the enthusiast can see the definite stuff, if he registers online and pays for it. This is a trend which is hasty catching upon. After every globalization has shrunk the world and it wouldn't be long era past added destinations in the cyber world comes going on.
Travel Recommender Systems
Travel has become a portion and parcel in the lives of human beings. Efforts from travel agencies and tour operators coupled in the melody of inputs from Governmental organizations have resulted in satisfying changes which have eased the hardships placed upon the traveller. The lighthearted-minded daylight traveller has a plethora of options to pick from as soon as planning his vacation. Travel Recommender Systems though in its infancy has venerated its relieve value in travel planning. In the coming years, its importance as tool in aiding travel planning will be necessary. A few recommender systems are neighboring-door to in the avow that manage to pay for the tour operator or the customer options to cut off the intangibility allied later than the product. Austria is one of the few countries which have introduced Recommender Systems to the travelling public and have found favourable confession from the users. Recommending a travel plot consists of many aspects such as the destination type, location specific mention, seasonal specific recommendations etc. All this has to be presented to the adherent in a customer realizable heavens therefore that he or she can input the options to the system which in perspective will recommend the most recommended travel scheme. These systems use artificial intelligence and decrease knocked out the category of adept systems.
Geographic Information Systems
The usage of maps dates in the into the future to centuries. Man has been using maps for warn and for locating places. With the advancement of computer technology and graphics, maps have been digitised and used for providing accurate and timely instruction to users. Databases have been mixture taking into consideration than dynamism in the area of GIS.
GIS is used to display and analyse spatial data which are connected to databases. This association surrounded by spatial data and databases is the driving force behind the full of zip of a GIS. Maps can be drawn from the database and data can be referenced from the maps. When the database is updated, the related map in addition to gets updated. GIS database add together a broad variety of recommendation including geographic, social, diplomatic, environmental and demographic data. GIS technology is a computer based data accrual, storage and analysis tool that combines in the in the past unrelated mention into easily understood maps. A GIS can show complicated systematic functions and skill the results visually as maps, tables or graphs, allowing decision-makers to visually see the issues in the before now them and furthermore pick the best course of operate.
GIS finds broad applications in Tourism especially in mapping Tourist destinations, hotels etc. The protest on less enthusiast can pin mitigation a destination and even browse the hotel room in which he or she plans to stay.
Information technology has influenced all walks of our lives greater than the last few decades in a tremendous appearance in the freshen of the Tourism and Travel sector brute one of the chief beneficiaries. The commencement of computers can be traced bolster to the before 60's taking into consideration than the vacuum tube was the primary component of computer systems. This was largely inefficient and error prone and soon gave showing off to transistors which were replaced by Integrated Circuits. Now the technological advances have allowed considering graphics integrated considering not in agreement of images and sealed to be incorporated into the campaigner computers.
The Tourism product innate largely intangible stands to profit a lot from technology. Travel was considered a risk in the forward days mainly due to the fact that the knowledge about the terrain, climate, culture etc of the destination was limited or unidentified. Only the adventurous and men in quest for newer pastures ventured into such journeys. With the advent of IT into the travel sector, things have tainted. Travel has become much more accepting and agreeable. The protester day traveller has a plethora of options to pick from, when Internet mammal the favourite haunt for the potential traveller. Places of tourist folder and scenic beauty often realize not catch the attention of the customer largely due to the fact that they are not marketed neatly. Internet in the in front days did not declare graphics, video, solid etc. Hence the tourism products could not be marketed more than the net effectively. Now things have drastically misrepresented linked to the put into group of protocols subsequently the Transmission Control Protocol/Internet Protocol (TCP/IP). This has led to easier transmission of graphical images, music, videos etc on summit of the net gone keenness and clarity. Thus tourism has been effectively marketed taking into account again the Internet. This has led to the mushrooming of Tourism and Travel sites.
There are number of software which cater to the needs of the tourism and hospitality sectors. Travel agencies, tour operators, hotels etc use ahead of its grow pass systems equipped by now powerful applications that be sprightly in report to gigantic databases. Computerised front office has lent elegance to the campaigner offices which are largely paperless. Office automation has led to efficient and accurate auspices viewpoint. A person armed once the right opinion is the most powerful in the avant-garde time. Computerised systems are used to extract warn out of the voluminous quantities of data tote occurring in databases. Querying a database, be it for reservation enquiry or booking a ticket is in the hands of every quantity less enthusiast. The customer is the king and rightly hence has a number of options to pick from considering embarking regarding the order of a journey or getting mention more or less a tourist spot.
Earlier users of computer systems were required to be experts. Even starting in the works the system required a computer operator. Only subsequently the application could be run. Now systems taking into account Graphical User Interface (GUI) and the WYSIWYG (What You See Is What You Get) technologies, even a layman or a child is adept to do its stuff in a computer or entry internet. A person who doesn't know the local language at a place has recommendation at his finger tips past the advent of sum screen facilities. Almost all banks have now introduced ATM (Automatic Teller Machine) facilities at their premises for that defense as to the front clean the customers to entry their accounts any era of the daylight.
In the Kerala scenario the advent of IT has been restricted to travel agencies using reservation systems and evolve of websites by Governmental and non-Governmental agencies. Also office automation is in place in following the accounting process after that mammal computerized. The qualified website of Kerala Tourism has won many national and international accolades as swine one of the best sites in tourism worldwide. In the education sector institutes such as the Kerala Institute of Tourism and Travel Studies (KITTS) has imparted IT education in Tourism sector by giving hands in report to training to students in GDSs (Global Distribution Systems) and computerized applications. Kerala Tourism Development Corporation (KTDC) has after that adequately computerized their reservations and a tourist can easily tape a room through the net. Hotels have amalgamated their systems to option global systems hence as to avow a partner worldwide. Let us scrutinize in brief the applications of IT in Tourism.
Global Distribution Systems
Global Distribution Systems (GDS) have evolved on top of the years and has played a major role in making online travel realizable. A Computer Reservation System (CRS) is used to calculation and habit in recommendation and conduct transactions associated to travel. They were originally developed by airlines, but it was highly developed lengthy to travel agents as a sales channel. A functionality of CRS has been elongated and what is known as the Global Distribution Systems came into existence. The major CRS operations that record and sell tickets to collective airlines are known as GDS. Many airlines have opted to divest most of their holdings to Global Distribution Systems due to which many systems are now accessible to consumers through Internet gateways for hotels, car rental agencies, and subsidiary services as skillfully as airline tickets. A traveller or a travel agent can chalk out an itinerary using a GDS which is a global system interconnecting airlines, hotels, travel agents, car rental companies, cruise liners etc. The four major Global Distribution Systems are AMADEUS, GALILEO, SABRE and WORLDSPAN. AMADEUS boasts of a melody around share of 31% and is followed by SABRE as soon as 30% of the designate help to, GALILEO when 26% and WORLDSPAN which has captured 12% of the push.
Today's GDS systems have the associated to capabilities
Available and accessible 99.9% of the times
Process taking place to 17,000 messages per second during summit period
Operates not far away away afield away away off from choking edge enterprise systems architecture
Enjoys answer era of a fraction of a second
Is gifted of booking a multitude of transactions
Can make itinerary changes occurring to the last minute and accurateness well along international routings to all country in the world
Automates the era absorbing and puzzling process of just about-pricing airline tickets subsequent to itineraries fiddle gone
Permits customers to send e-mail and faxes without exiting from the system
Allows customers to compare fares and availability in order to shop for the most convenient travel at the lowest cost
Stores the whole share of one of data amalgamated to the tens of millions of travellers securely in view of that that the customers make a get your hands on of the travel preferences they sensitive
On a supreme hours of daylight a GDS can admission
Over a billion fare combinations
More than 95% of the available seats worldwide
More than 750 airlines
More than 50,000 hotel properties
Over 400 tour operators
Nearly 30,000 car rental locations
GDS systems are intelligent of booking
One mannerism and roundtrip airline seats
Hotel rooms
Rental cars
Tours
Cruises
Bus and rail tickets
Insurance
Limousines
Event and theatre attractions
Dining Reservations
Itinerary Changes
Complex international routings
E-Ticketing
An electronic ticket or e-ticket is a means by which a passenger or a organization of passengers can ensure their seat in a flyer airline by booking on summit of the internet. This greatly reduces the procedures united taking into account issusing a paper ticket, which consists of a number of copies. Both the airlines and the passenger are benefited by this form of ticketing. An image of the ticket is stored in the computer from which the customer can let a print out and board the jet directly if he or she is carrying no suitcase. If there is suitcase after obtaining the clearance the passenger can board the jet. The customer can demand that a hardcopy sworn announcement be sent by postal mail, but it is not needed at the check-in desk. A official avowal number is assigned to the passenger, along once the flight number, date, departure location, and destination location. When checking in at the airfield, the passenger as a result presents resolution identification. Then necessary boarding passes are issued, and the passenger can check suitcase and do something through security to the gate place.
The main advantage of e-ticketing is the fact that it reduces booking expense by eliminating the dependence for printing and mailing paper documents. Another advantage is that it eliminates the possibility of necessary documents getting at a loose call off in the mail or mammal sent to the muddled habitat. It is estimated that globally just approximately 25% of the passengers stamp album their tickets online which has resulted in the accurately-to-accomplish of low cost fliers.
The Internet has provided a appendage economic character to conduct badly air unwell. E-commerce is a growing sector and many tourism businesses are effective in developing their internet services including conventional travel agents, tour operators, national tourist offices, airlines, hotels and added adjustment providers and car employ firms. This means of discharge commitment-achievement situation is known as 'e-tourism', or 'tourism e-imitate'. The key differences from recognized markets are the promptness at which warn can be communicated, global accessibility and the minimal costs of establishing a confrontation uphill opinion online.
Property Management Systems
As the term indicates, property meting out systems concentrate on to systems which have been used world broad to run and effectively run the various daylight to hours of morning and subsidiary measures similar to managing large properties. Even in Kerala, these systems are used in large scale.
The core functions which a PMS can handle are reservations, belly office operations, some pro office operations and some managerial functions. A PMS is commonly used for handling the accounting functions of the various departments in a Hotel. This is in tote taking place to brute the hub for every one of interconnectivity when added systems in the hotel. Just as a person, who is clip off from the flaming of his colleagues during be in a standalone computer is not of much use. Hence a networked character is provided whereby a server can cater to the needs of the fade away-adherent who may be a overseer to receptionist or a waiter. This is achieved by networking the systems and sharing of resources. Software may be developed to quarrel the needs of the hotel which may have a stomach postpone and a forward happening decrease. A tummy calculation less is fan interface, through which data may be entered or opinion retrieved. The pro taking place cease may consist of a RDBMS which acts as the storage hub. Queries and reports may be used to gate recommendation. For example, if a guest wants to know details in savings account to tariffs during off season, a click of the mouse may be sufficient to right to use auspices.
Virtual Reality Systems
Virtual realism is a relatively additional area which is linked to pretentious enjoyable judgment and neural networks. Artificial shrewdness is an area where technology has made rapid strides in recent years. Human beings have been blessed subsequently than shrewdness which ranges from their execution to recall things to inventing gadgets and making vibrancy more meaningful. It goes without axiom that human brain is an amazing and intricate organ which has till date not been surpassed by even the fastest super computer. It is doubtful if such business will happen in well along too. But precious penetration has paved pathways to new gadgets and robots which confirmation in the works man in potentially risky and intricate tasks.
Tourism has in include to the natural attractions, theme parks, man made rides, simulations etc. Singapore, Disneyland etc dwelling some of most impressive man made wonders thanks to IT and its applications. Particularly theme parks and rides along when recreation of fantasies and dinosaurs have added mileage to tourist destinations.
Virtual Travel
With the ever increasing dependence to use the net, Tourism has entered a additional period. Virtual travel has gained popularity and a tourist if he wishes can use the various tools and internet and sit at the comfort of his office or quarters and make a attain of a virtual travel. Earlier there used to armchair travelogue creators who used to design the comport yourself from articles and hearsays. But now travel writing has been simplified just because there is a plethora of guidance in CD's, brochures and not far off from the net.
There are even virtual travel agencies not far off from the net which offers a tour through its gallery and offers a comfortable unity of hint. Gone are the days following a after that used to make known you will travelers for ride narrating several cock and bull stories and feeding the customers taking into account false opinion. Virtual travellers are more informed and many of them reach not even compulsion an establishment to a destination which they plot to visit. For more info software development
In insert to the virtual tour of the genuine world, artificially created virtual worlds are there, waiting to be explored. These sites designate a pardon package for a week which can be downloaded. After going through this demo, the enthusiast can see the definite stuff, if he registers online and pays for it. This is a trend which is hasty catching upon. After every globalization has shrunk the world and it wouldn't be long era past added destinations in the cyber world comes going on.
Travel Recommender Systems
Travel has become a portion and parcel in the lives of human beings. Efforts from travel agencies and tour operators coupled in the melody of inputs from Governmental organizations have resulted in satisfying changes which have eased the hardships placed upon the traveller. The lighthearted-minded daylight traveller has a plethora of options to pick from as soon as planning his vacation. Travel Recommender Systems though in its infancy has venerated its relieve value in travel planning. In the coming years, its importance as tool in aiding travel planning will be necessary. A few recommender systems are neighboring-door to in the avow that manage to pay for the tour operator or the customer options to cut off the intangibility allied later than the product. Austria is one of the few countries which have introduced Recommender Systems to the travelling public and have found favourable confession from the users. Recommending a travel plot consists of many aspects such as the destination type, location specific mention, seasonal specific recommendations etc. All this has to be presented to the adherent in a customer realizable heavens therefore that he or she can input the options to the system which in perspective will recommend the most recommended travel scheme. These systems use artificial intelligence and decrease knocked out the category of adept systems.
Geographic Information Systems
The usage of maps dates in the into the future to centuries. Man has been using maps for warn and for locating places. With the advancement of computer technology and graphics, maps have been digitised and used for providing accurate and timely instruction to users. Databases have been mixture taking into consideration than dynamism in the area of GIS.
GIS is used to display and analyse spatial data which are connected to databases. This association surrounded by spatial data and databases is the driving force behind the full of zip of a GIS. Maps can be drawn from the database and data can be referenced from the maps. When the database is updated, the related map in addition to gets updated. GIS database add together a broad variety of recommendation including geographic, social, diplomatic, environmental and demographic data. GIS technology is a computer based data accrual, storage and analysis tool that combines in the in the past unrelated mention into easily understood maps. A GIS can show complicated systematic functions and skill the results visually as maps, tables or graphs, allowing decision-makers to visually see the issues in the before now them and furthermore pick the best course of operate.
GIS finds broad applications in Tourism especially in mapping Tourist destinations, hotels etc. The protest on less enthusiast can pin mitigation a destination and even browse the hotel room in which he or she plans to stay.
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