CHAPTER ONE

INTRODUCTION

1.1       Background of study

Information is the numeral system most commonly used for encoding and decoding textual computer information. It is the answer to a question of some kind, from which data and knowledge can be derived from (Ware, 2014). Information is conveyed either as the content of a message or through direct or indirect observation of certain things. Information is retrieved in its raw state as data and processed into decodable and meaningful information. According to Barnes (2003), information is collected and analyzed to create suitable information for decision-making. Spence (2011), is of the opinion that, since the eye is used as primary sense, a path-way into the mind that allows users to see and register what they have seen in their minds. The eye is an important organ of the body that humans cannot do without. Therefore, SanJos (2012) opined that, to communicate effectively, the use of visualization is key to reflection on what the mind conceptualizes in human beings.

Visualization is a process of taking raw data and converting them to a form that is viewable and understandable to humans. Jinsheng (2010), explains that visualization can refer to what visualization (the product, object or visual image) or the how of visualizing (the process, activity or skill). Merriam-Webster (2010), defines visualization as the "formation of mental images" or "the act or process of interpreting in visual terms or of putting into visible form." Visual representations and interaction techniques take advantage of the human eyes, broad bandwidth pathway into the mind to allow users to see, explore, and understand large amounts of information at once.

Information visualization focuses on the creation of approaches for conveying abstract information in an intuitive way. Salaberry (2011), observed that, information visualization involves visual as well as interactive presentation and organization of complex data in a clear, compelling and convincing representations. Rober (2014), also opined that, information visualization can thus, be seen as an essential element in human daily lives, especially those in data-driven professions, such as online educators (teachers, students and stakeholders). Pylyshyn, (2013), states that, presentation in teaching and learning processes is very important for users of information to understand the messages of the communication taking place using information visualization tool. The amount of information required to process by a human brain can be overwhelming.

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2. 2. As a source for additional understanding of the subject.
3. 3. As a source for ideas for your own research work (if properly referenced).
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5. 5. Direct citing (if referenced properly)
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