Using Frontpage

1. What two steps are recommended in planning your site?

Sketching out a structure before creating a site in FrontPage can save you lots of work later. And then sketch an example of a layout sketch.

    

A structure                                                               layout sketch 

2. What is a web server?

Protocols

Where They Were Used:

·         TCP/IP:  is used for transmission of data from an application to the network.

·         http:  communication between a web server and a web browser

·         simple mail transfer protocol 

(         (smtp): transmission of e-mails.

·         file transfer protocol 
          (FTP):  used for transmission of files between computers.

·         html: contains all the text to display, and also acts as the "glue" to hold the text and images      together in the right places, and display them in the right style.

·         xml: users to define their own customized markup languages

The IP and URL

The IP address and the URL are related as The browser communicated with a name server to translate the server name "www.insertnamehere.com" into an IP Address, which it uses to connect to the server machine. The browser then formed a connection to the server at that IP address on a specfic port.

The URL

Universal Resource Locator. It is broken up into three parts:

The protocol ("http")

The server name ("www.insertnamehere.com")

The file name ("web-server.htm")

HTML

HyperText Markup Language, the authoring language used to create documents on the World Wide Web. HTML is similar to SGML, although it is not a strict subset. There are hundreds of other tags used to format and layout the information in a Web page. Tags are also used to specify hypertext links. These allow Web developers to direct users to other Web pages with only a click of the mouse on either an image or word(s). For a more complete list of tags, check out some of the URLs below.

Error Detection

In communications, error detection refers to a class of techniques for detecting garbled messages. Two of the simplest and most common techniques are called checksum and CRC. More sophisticated strategies include MNP and CCITT V.42 .

Error detection and correction add some redundency (i.e. some extra data) to a message, which receivers can use to check consistency of the delivered message, and to recover data determined to be erroneous.

A common method of error detection Automatic Repeat reQuest (ARQ) is an error control method for data transmission that makes use of error-detection codes, acknowledgment and/or negative acknowledgment messages, and timeouts to achieve reliable data transmission. An acknowledgment is a message sent by the receiver to indicate that it has correctly received a data frame.
Usually, when the transmitter does not receive the acknowledgment before the timeout occurs (i.e., within a reasonable amount of time after sending the data frame), it retransmits the frame until it is either correctly received or the error persists beyond a predetermined number of retransmissions.

The URL

Abbreviation of Uniform Resource Locator (URL) it is the global address of documents and other resources on the World Wide Web.The first part of the URL is called a protocol identifier and it indicates what protocol to use, and the second part is called a resource name and it specifies the IP address or the domain name where the resource is located. The protocol identifier and the resource name are separated by a colon and two forward slashes.

Serial Data Transmission:
In telecommunications, serial transmission is the sequential transmission of signal elements of a group representing a character or other entity of data. Digital serial transmissions are bits sent over a single wire, frequency or optical path sequentially. Because it requires less signal processing and less chances for error than parallel transmission, the transfer rate of each individual path may be faster. This can be used over longer distances as a check digit or parity bit can be sent along it easily.

Parallel Data Tranmission:
In telecommunications, parallel transmission is the simultaneous transmission of the signal elements of a character or other entity of data. In digital communications, parallel transmission is the simultaneous transmission of related signal elements over two or more separate paths. Multiple electrical wires are used which can transmit multiple bits simultaneously, which allows for higher data transfer rates than can be achieved with serial transmission. This method is used internally within the computer, for example the internal buses, and sometimes externally for such things as printers, The major issue with this is "skewing" because the wires in parallel data transmission have slightly different properties (not intentionally) so some bits may arrive before others, which may corrupt the message. A parity bit can help to reduce this. However, electrical wire parallel data transmission is therefore less reliable for long distances because corrupt transmissions are far more likely.

GUI

What Does GUI stand for?
It stands for graphical user interface. It is A program interface that takes advantage of the computer's graphics capabilities to make the program easier to use.

What Was used before GUI?
The first graphical user interface was designed by Xerox Corporation's Palo Alto Research Center in the 1970s, but it was not until the 1980s and the emergence of the Apple Macintosh that graphical user interfaces became popular.developed at Xerox PARC in 1973. It was the first computer to use the desktop metaphor and mouse-driven graphical user interface (GUI).
It was not a commercial product, but several thousand units were built and were heavily used at PARC, other Xerox facilities, at least one government facility and at several universities for many years. The Alto greatly influenced the design of some personal computers in the following decades, notably the Apple Macintosh and the first Sun workstations.

Smart Phone Tour

Technology

·         Hardware: Mobile Phone, Computers, Camera, Colour Printer, router and internet connection, computer network, USB

·         Software: file transfer application, image software was used to resize and inserted arrows, cropping, Online application to generate QR codes, QR code reader, online collaboration tool,  voice recorder, Google sites for hosting the website

Constrains:

·         Time

·         Internet Speed: issues uploading/downloading  images, we needed to create a good user experience wait time should be a minimum of 10 seconds

·         We had .wmv files and .jpeg files, we used compressed file formats, the resolution had to be limited of images which was 400x450 pixels,.

·         Costs: there had to be no costs to the user, freely available hosting sites for the creator

Your Role(s):

·         To create the route from the Barbara McDonough to the performing arts areas

·         To create the route from the Barbara McDonough to the Library

·         Edit the images to add arrows to indicate directions.

·         Creating QR codes

Problems:

·         Internet Speed: taking images home on USB

·         Knowing Status of each website: using collaborative document to indicate the status through colour coding

·         Finding Photos: Fixed by organising the images into different files that indicated specific routes