Lesson Notes By Weeks and Term - Senior Secondary School 2

SUBJECT: I.C.T

CLASS:  SS 2

DATE:

TERM: 3rd TERM

 
WEEK 9

TOPIC: INTRODUCTION TO WORLD WIDE WEB (www) II

USES AND BENEFITS OF WWW

The benefits of World Wide Web are:

1. It enable access to information from anywhere in the world.
2. It enables a quick, cheap and convenient means of communication between people through email and chatting.
3. It enables sharing of ideas, knowledge and skills across the world.
4. It enables social networking, collaborations and making of friends across the globe.
5. It enables e-learning that is highly beneficial to educational system.
6. It is the bedrock of e-commerce which is an effective trading system.
7. It encourages outsourcing of software services.
8. It encourages new way of working from home.
9. It enables video conferencing across the globe.
10. It enables publishing of online books and encyclopaedias, establishment of online book stores and e-libraries.
11. It allows reservation of hotels and airline bookings across the globe.
12. The www enabled the decentralization of information and establishment of e-government, e-payments and so on.
13. Many individual and some companies and groups use web logs or blogs, which are largely used as easily updatable online diaries. 
14. It provides internet telephone services like Skype.
15. It provides an effective data transfer mechanism for distributing print publications, software products, news, music, film, video, photography, graphics and other arts.
16. Empowering radio and television broadcasting.
17.  It enables the use of multimedia objects for advertisement.

NAVIGATING THROUGH A WEBSITE

Creating good web site navigation is the most important task a web designer has to accomplish in the web design process. Website navigator is the pathway people take to navigate through sites. It must be well constructed, easy to use and intuitive.

Most times new internet users see themselves in front o web sites without knowing what to do next. The navigation is so well hidden or disguised that the some users simply do not know how to use it. Navigation is the single most important element in creating accessible and usable web sites.

THE PURPOSE OF NAVIGATION

The purpose of navigation is to:

1. Present readers with the most user-friendly path through the classification so that they can find content they want quickly.
2. Ensure readers always know where they are on the site.
3. Allow readers to move quickly and logically through the web site.
4. Give readers the proper context of the document they are reading.
5. Highlight for the reader parts of the classification that the organization wants to promote.

TYPES OF NAVIGATION

There are a variety of navigation approaches that are found in websites. They include the following; 

• Left Navigation: Left web site navigation is the most common type of navigation. Left navigation has become very popular because it is responds to user behaviour of reading from the left.
• Top Navigation: Top navigation is the second most common navigation. There are at the top of the web page.
• Right Navigation: These are navigation placed on the right of the web pages.
• Central Navigation: This is where the main body of the information is represented.
• Global Navigation: Global navigation contains links to pages that are accessible from every page on the site (Home, Contact, Us, etc). Global navigations are mainly placed at the top and bottom of every page.
• Feature Navigation: This uses features to attract some content on the website.
• Related Navigation: This is the navigation that occurs at the end of a document. It gives a selection of documents that have been classified under the same classification as that document, and /or related web site.
• Content Navigation: This is the navigation that occurs within a particular document. If the document mentions another document or classification, for example, then a link can be made.
• History Trail Navigation: This navigation tells you exactly what part of the classification you are in and how that relates to the overall classification system. It always begins with a Home link and end with the section you are in. For example: Home/Products/Product XY.
• Drop-down Navigation: This is navigation delivered by a drop-down menu.
• Language Navigation: If a web site is in a number of languages, this navigation allows the reader to choose a specific language.
• Geographical Navigation: Where a web site is broken down by country or region, this navigation allows you to choose.
• Uniform Resource location (URL) Navigation: URL is the address of a document on the internet that consists of a communications protocol followed by a colon and two slashes (for example, http://). This navigation tells you where you are in the URL structure.

SOFTWARE FOR WEB DEVELOPMENT

Microsoft FrontPage

Its full name is Microsoft Office FrontPage. It is a WYSIWYG HTML editor and web site administration tool from Microsoft. (WYSIWYG means What You See Is What You Get)

Macromedia Tools

The common macromedia tools are Dreamweaver, flash, fireworks, free hand.

Adobe Tools

The Adobe tools are Adobe Dreamweaver, fireworks and flash

Others

There are many website designing tool like Web studio, Coffee cup, Notepad and so on.

READING ASSIGNMENT: HiiT @ School, Computer Studies for Senior Secondary Education. Chapter Five, pages 129 - 132.

WEEKEND ASSIGNMENT

OBJECTIVES

1. ..........................is the pathway people take to navigate through sites. (a) Website navigator  (b) Left navigator  (c) Right navigator  (d) Top navigator
2. ........................refers to the initial or main web page of a web site. (a) Home Page  (b) Web Page  (c) Web browser  (d) Protocol
3. ……………….is a convention or standard that controls or enables the connection, communication, and data transfer between computing devices. (a) Home Page  (b) Web Page  (c) Web browser  (d) Protocol
4. ................... is a website’s html document that is displayed by a web browser. (a) Home Page  (b) Web Page  (c) Web browser  (d) Protocol
5. ……….... is a set of rules that governs the communication between computers in network. (a) Home Page  (b) Web Page  (c) Web browser  (d) Protocol

THEORY

1. State five (5) uses and benefits of www.
2. State three purpose of navigation.
3. Write the full meaning of the following acronyms;  (i) HTTP (ii) HTML  (iii) SMTP
4. List three (3) software used for website development.