1. Distinguish the term “Rich Internet Applications” (RIAs) from “Rich Web-based Applications” (RiWAs).
Definition
What does Rich Internet Application (RIA) mean?
A Rich Internet Application (RIA) is a Web application with many of the same features and appearances as a desktop application. A RIA requires a browser, browser plug-in or virtual machine to deliver a user application. Data manipulation is handled by the server, and user interface and related object manipulation are handled by the client machine
2. Discuss the key features of RiWAs, which make them more advanced than the standard applications.
Modern day business applications use variety of programming platforms to develop web-based applications. Some applications may be developed in Java, others in .Net, while some other in Angular JS, Node.js, etc.
Most often than not, these heterogeneous applications need some sort of communication to happen between them. Since they are built using different development languages, it becomes really difficult to ensure accurate communication between applications.
Here is where web services come in. Web services provide a common platform that allows multiple applications built on various programming languages to have the ability to communicate with each other.
3. Identify different technologies and techniques used to develop the client-side components of the RiWAs, explaining their use in dedicated environments.
Angular. Angular is one of the latest web technologies designed specifically for developing dynamic web applications.
Ruby on Rails. Ruby on Rails is a server-side website technology that makes app development much easier and faster.
4. Explain what Delta-Communication is, discussing the advantages of using it.
Advantages:
Disadvantages
5. Compare and contrast synchronous and asynchronous communication in the context of DC.
Synchronous vs. asynchronous communication
In synchronous communication multiple parties are participating at the same time and wait for replies from each other. One way to visualize the concept of synchronous communications is to imagine a real-time online chat session in which you exchange messages with a live customer support specialist to get help for your broken toaster oven.
Before message exchange in this synchronous scenario can begin, the sender and receiver must establish a communications session and agree which party is going to be in control. Once the session is established, the two-way, give-and-take conversation occurs in actual time. When you type and send a chat message, the party at the other end is present and actively waiting to receive or hear your message and then immediately respond to it. Both parties are working together at the same time with their clocks in lockstep (time zone differences notwithstanding) -- in other words, synchronized.
Asynchronous communication is different. For example, it occurs when that toaster oven manufacturer doesn't offer real-time chat, forcing you instead to send an email message to a company's tech support department. The recipient is neither expecting nor waiting for an incoming message and therefore may not get to it right away.
6. Compare and contrast different types of technologies and techniques available for DC implementation, indicating their pros and cons.
Pro
Technology Can Streamline Tedious Tasks
Taking attendance, tracking grades and even answering common student questions can take up a lot of a teacher’s time. Adding technology to the classroom can help eliminate some of these tasks, freeing the teacher to focus on delivering quality lessons to the class. Programs like Top Hat, for instance, allow a teacher to manage tests securely in a digital environment that automatically grades and tracks them, while also allowing greater interaction with students and collaboration in the classroom.
Technology Is a Part of Modern Life
A teacher’s goal is to develop students who are prepared for life as an adult, and today’s adult world is one that utilizes technology. The more opportunities a student has to work with technology in school, the less intimidation the student will feel when entering the workforce and trying to embrace technology in their occupation.
Technology Can Increase Student Engagement
When used well and woven through a lesson by a skilled teacher, technology can increase student engagement. One way to do this is through comprehension checks. Teachers can use tools to check students’ understanding during the lesson, allowing them to make adjustments if students are struggling to grasp a concept. Some tools that allow for this include:
Padlet ― This free tool allows students to add their responses to a classroom display that allows for comprehension checks and collaboration.
Socrative ― This free tool allows teachers to track student progress, while also providing options for using questions to check for understanding during a lesson.
Plickers ― This tool uses QR codes on cards held by students, which means it can be used even in classrooms that do not offer student devices.
In addition, teachers who use technology to present lessons can engage students more easily, because technology is a format most students are drawn to naturally.
Con
Teachers Fear Adding More Screen Time
Today’s students are getting far more screen time then they should have. According to the Common Sense Census: Media Use by Tweens and Teens study, students ages 8 through 12 spend an average of six hours of time daily on screens for entertainment. This increases to almost nine hours for high school and upper middle school students. Adding technology in the classroom may add more screen time to that statistic. While the screens are used educationally, the overall impact of screen time on the brain is going to increase.
Technology May Not Be Utilized to the Fullest
Adding a computer to the classroom that students can play on when done with their work, use to search Google and access for word processing purposes is not using technology to the fullest in the classroom. In order for technology to be used effectively in the classroom, teachers must be trained on how to incorporate it into their lesson planning well, weaving their instruction around the use of technology.
Technology Can Be a Distraction
Students who have a tablet or computer in front of them during a lesson are going to be tempted to play instead of listening. Teachers must set clear expectations for the appropriate use of technology in order to ensure that this is not a problem.
Technology clearly has both pros and cons when used in the classroom, but the bottom line is this: We are living in a digital world, and students are interacting with technology, and possibly even bringing it with them to school, on a daily basis. The benefits of using technology in the classroom are far-reaching and need to be embraced by modern educators who seek to prepare students for adult life.
7. Discuss the history and the evolution of the XHR and AJAX.
AJAX is a developer's dream, because you can:
8. Discuss the role of the DC-engine in RiWAs.
A DC motor is any of a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. A DC motor's speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field winding
Advantages of DC motors
The primary advantage of the DC motor is that it can develop constant torque over a wide speed application. Power supply is an important consideration in the application of DC motors. The most common way to provide DC voltage to a motor from an AC line is through the use of an electronic drive.
9. Explain the role of the DC-Bus, indicating how a web-service can be effectively used to implement it.
The DC bus in a VFD has found its usage as the technology has evolved. Some of the applications of DC bus, ... Using the DC bus as a discharge medium in the case of faster braking of load. A resister connected to DC bus can act as a brake resister which dissipates surge power generated by fast decelerating load.
12. Discuss the variation of the jQuery ajax() function, explaining all the related options and events.
The jQuery $.ajax() function is used to perform an asynchronous HTTP request. It was added to the library a long time ago, existing since version 1.0. The $.ajax()function is what every function discussed in the previously mentioned article calls behind the scene using a preset configuration. The signatures of this function are shown below:
$.ajax(url[, options])
$.ajax([options])
The url parameter is a string containing the URL you want to reach with the Ajax call, while options is an object literal containing the configuration for the Ajax request.
Definition
What does Rich Internet Application (RIA) mean?
A Rich Internet Application (RIA) is a Web application with many of the same features and appearances as a desktop application. A RIA requires a browser, browser plug-in or virtual machine to deliver a user application. Data manipulation is handled by the server, and user interface and related object manipulation are handled by the client machine
2. Discuss the key features of RiWAs, which make them more advanced than the standard applications.
Modern day business applications use variety of programming platforms to develop web-based applications. Some applications may be developed in Java, others in .Net, while some other in Angular JS, Node.js, etc.
Most often than not, these heterogeneous applications need some sort of communication to happen between them. Since they are built using different development languages, it becomes really difficult to ensure accurate communication between applications.
Here is where web services come in. Web services provide a common platform that allows multiple applications built on various programming languages to have the ability to communicate with each other.
3. Identify different technologies and techniques used to develop the client-side components of the RiWAs, explaining their use in dedicated environments.
Angular. Angular is one of the latest web technologies designed specifically for developing dynamic web applications.
Ruby on Rails. Ruby on Rails is a server-side website technology that makes app development much easier and faster.
- YII.
- Meteor JS.
- Express.js.
- Zend.
- Django.
- Laravel.
4. Explain what Delta-Communication is, discussing the advantages of using it.
Advantages:
- The digital communication systems are simpler and cheaper compared to analog communication systems because of the advances made in the IC technologies.
- In digital communication, the speech, video and other data may be merged and transmitted over a common channel using multiplexing.
- Using data encryption, only permitted receivers may be allowed to detect the transmitted data. This property is of its most importance in military applications.
- Since the transmission is digital and the channel encoding is used, therefore the noise does not accumulate from repeater to repeater in long distance communications.
- Since the transmitted signal is digital in nature, therefore, a large amount of noise interference may be tolerated.
- Since in digital communication, channel coding is used, therefore, the errors may be detected and corrected in the receivers.
- Digital communication is adaptive to other advanced branches of data processing such as digital signal processing, image processing and data compression, etc.
Disadvantages
- Due to analog to digital conversion, the data rate becomes high. therefore more transmission bandwidth is required for digital communication.
- Digital communication needs synchronization in case of synchronous modulation.
5. Compare and contrast synchronous and asynchronous communication in the context of DC.
Synchronous vs. asynchronous communication
In synchronous communication multiple parties are participating at the same time and wait for replies from each other. One way to visualize the concept of synchronous communications is to imagine a real-time online chat session in which you exchange messages with a live customer support specialist to get help for your broken toaster oven.
Before message exchange in this synchronous scenario can begin, the sender and receiver must establish a communications session and agree which party is going to be in control. Once the session is established, the two-way, give-and-take conversation occurs in actual time. When you type and send a chat message, the party at the other end is present and actively waiting to receive or hear your message and then immediately respond to it. Both parties are working together at the same time with their clocks in lockstep (time zone differences notwithstanding) -- in other words, synchronized.
Asynchronous communication is different. For example, it occurs when that toaster oven manufacturer doesn't offer real-time chat, forcing you instead to send an email message to a company's tech support department. The recipient is neither expecting nor waiting for an incoming message and therefore may not get to it right away.
6. Compare and contrast different types of technologies and techniques available for DC implementation, indicating their pros and cons.
Pro
Technology Can Streamline Tedious Tasks
Taking attendance, tracking grades and even answering common student questions can take up a lot of a teacher’s time. Adding technology to the classroom can help eliminate some of these tasks, freeing the teacher to focus on delivering quality lessons to the class. Programs like Top Hat, for instance, allow a teacher to manage tests securely in a digital environment that automatically grades and tracks them, while also allowing greater interaction with students and collaboration in the classroom.
Technology Is a Part of Modern Life
A teacher’s goal is to develop students who are prepared for life as an adult, and today’s adult world is one that utilizes technology. The more opportunities a student has to work with technology in school, the less intimidation the student will feel when entering the workforce and trying to embrace technology in their occupation.
Technology Can Increase Student Engagement
When used well and woven through a lesson by a skilled teacher, technology can increase student engagement. One way to do this is through comprehension checks. Teachers can use tools to check students’ understanding during the lesson, allowing them to make adjustments if students are struggling to grasp a concept. Some tools that allow for this include:
Padlet ― This free tool allows students to add their responses to a classroom display that allows for comprehension checks and collaboration.
Socrative ― This free tool allows teachers to track student progress, while also providing options for using questions to check for understanding during a lesson.
Plickers ― This tool uses QR codes on cards held by students, which means it can be used even in classrooms that do not offer student devices.
In addition, teachers who use technology to present lessons can engage students more easily, because technology is a format most students are drawn to naturally.
Teachers Fear Adding More Screen Time
Today’s students are getting far more screen time then they should have. According to the Common Sense Census: Media Use by Tweens and Teens study, students ages 8 through 12 spend an average of six hours of time daily on screens for entertainment. This increases to almost nine hours for high school and upper middle school students. Adding technology in the classroom may add more screen time to that statistic. While the screens are used educationally, the overall impact of screen time on the brain is going to increase.
Technology May Not Be Utilized to the Fullest
Adding a computer to the classroom that students can play on when done with their work, use to search Google and access for word processing purposes is not using technology to the fullest in the classroom. In order for technology to be used effectively in the classroom, teachers must be trained on how to incorporate it into their lesson planning well, weaving their instruction around the use of technology.
Technology Can Be a Distraction
Students who have a tablet or computer in front of them during a lesson are going to be tempted to play instead of listening. Teachers must set clear expectations for the appropriate use of technology in order to ensure that this is not a problem.
Technology clearly has both pros and cons when used in the classroom, but the bottom line is this: We are living in a digital world, and students are interacting with technology, and possibly even bringing it with them to school, on a daily basis. The benefits of using technology in the classroom are far-reaching and need to be embraced by modern educators who seek to prepare students for adult life.
7. Discuss the history and the evolution of the XHR and AJAX.
AJAX is a developer's dream, because you can:
- Update a web page without reloading the page
- Request data from a server - after the page has loaded
- Receive data from a server - after the page has loaded
- Send data to a server - in the background
8. Discuss the role of the DC-engine in RiWAs.
A DC motor is any of a class of rotary electrical machines that converts direct current electrical energy into mechanical energy. A DC motor's speed can be controlled over a wide range, using either a variable supply voltage or by changing the strength of current in its field winding
Advantages of DC motors
The primary advantage of the DC motor is that it can develop constant torque over a wide speed application. Power supply is an important consideration in the application of DC motors. The most common way to provide DC voltage to a motor from an AC line is through the use of an electronic drive.
9. Explain the role of the DC-Bus, indicating how a web-service can be effectively used to implement it.
The DC bus in a VFD has found its usage as the technology has evolved. Some of the applications of DC bus, ... Using the DC bus as a discharge medium in the case of faster braking of load. A resister connected to DC bus can act as a brake resister which dissipates surge power generated by fast decelerating load.
12. Discuss the variation of the jQuery ajax() function, explaining all the related options and events.
The jQuery $.ajax() function is used to perform an asynchronous HTTP request. It was added to the library a long time ago, existing since version 1.0. The $.ajax()function is what every function discussed in the previously mentioned article calls behind the scene using a preset configuration. The signatures of this function are shown below:
$.ajax(url[, options])
$.ajax([options])
The url parameter is a string containing the URL you want to reach with the Ajax call, while options is an object literal containing the configuration for the Ajax request.
- accepts: The content type sent in the request header that tells the server what kind of response it will accept in return
- async: Set this options to false to perform a synchronous request
- beforeSend: A pre-request callback function that can be used to modify the jqXHRobject before it is sent
- cache: Set this options to false to force requested pages not to be cached by the browser
- complete: A function to be called when the request finishes (after success and error callbacks are executed)
- contents: An object that determines how the library will parse the response
- contentType: The content type of the data sent to the server
- context: An object to use as the context (this) of all Ajax-related callbacks
- converters: An object containing dataType-to-dataType converters
- crossDomain: Set this property to true to force a cross-domain request (such as JSONP) on the same domain
- data: The data to send to the server when performing the Ajax request
- dataFilter: A function to be used to handle the raw response data of XMLHttpRequest
- dataType: The type of data expected back from the server
- error: A function to be called if the request fails
- global: Whether to trigger global Ajax event handlers for this request
- headers: An object of additional headers to send to the server
- ifModified: Set this option to true if you want to force the request to be successful only if the response has changed since the last request
- isLocal: Set this option to true if you want to force jQuery to recognize the current environment as “local”
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