Information Science

Information science is a field that concerned with the analysis, manipulation, storage, dissemination of information etc. Information Science plays a vital role about everything we do in modern society. Information systems are vital to the operation of modern organizations and information scientists are involved in almost every field. People with information science skills are needed and many varied career opportunities in fields such as business, science, education, health, music , technology etc.  Practitioners within the field study and usage of knowledge in organizations between people and organizations, with the purpose of creating, improving, or understanding information systems.

Information science is considered a branch of computer science. It is an interdisciplinary field, not only aspects of computer science, but often used in fields such as archival science, commerce, communications, law, library science, management and the social sciences. Information Science used by the technology, people, and organizations. It has discipline and a focus on Information and Communication Technologies used by people to manage information within organizations.

The study of information includes activities such as information collection, processing, storage and presentation, communication of information etc. It also encompasses study of the information at the organizational and information systems that support information usage.

The Department of Information Science at any place or country focuses on any areas, such us : Human-computer interfaces, including multimedia systems, Information assurance and security, Information systems development and management, Computational modelling, machine learning and data mining, Databases, Distributed information systems, Social networking and organizational computing, Software engineering and application software development.

Human Computer Interaction

Human computer interaction is the study of the interaction between user and computers includes planning and design. It is often regarded as the intersection of computer science, behavioral sciences. a computer has many affordances for use and this takes place in an open-ended dialog between the user and the computer. Human computer interaction is also sometimes referred to as man- machine . it help people for computer using such us building interfaces of computer program for programmer.

Human computer interaction studies a human and a machine, it supporting knowledge on both. On the machine side includes techniques in computer graphics, operating systems, programming languages etc. On the human side includes communication theory, industrial design disciplines, social sciences etc.

Human machine interaction is important because the design of human machine interfaces is must be understand with user and poorly designed human machine interfaces can lead to many unexpected problems. The information between the human and computer is defined as the loop of interaction. The loop of interaction includes:

• Task environment: The goal set by the user.
• Machine environment: The environment of computer
• Input: The flow of information that begins in the task environment, when the user has some task that requires using their computer.
• Output: The information that gained from machine process or business process.
• Feedback: is the dialogue of interface that evaluate, confirm processes from the human through the interface to the computer and user. 

Human machine interaction is improving the interactions between users and computers.

• Methodologies for designing interfaces
• Methods for implementing interfaces
• Techniques for evaluating interfaces
• Developing interfaces and interaction techniques