Human–computer interaction

1. HUMAN–
COMPUTER
INTERACTION

2. Purpose: to work with a system, the
users need to be able to control the
system and assess the state of the
system.

3. PLAN
• User interface, as a means of human-
computer interaction. Usability of Interfaces.
• Types of interfaces: command line interface,
text interface, graphical interface, natural-
language user interface
• Mental characteristics of the user.
• Stages of user interface development.
• Types of interface testing (user testing).
• Prospects for the development of interfaces.

4. USER INTERFACE, AS A MEANS OF HUMAN-
COMPUTER INTERACTION
Human–computer interaction (HCI)
researches the design and use of
computer technology, focused on the
interfaces between people and computers.

5. USER INTERFACE
The user interface (UI), in the industrial
design field of human–computer interaction, is
the space where interactions between humans
and machines occur.

6. USABILITY

7. USABILITY OF INTERFACE
Usability is the degree to which a software can
be used by specified consumers to achieve
quantified objectives with effectiveness, efficiency,
and satisfaction in a quantified context of use.
Usability of interface consists of
Learnability
Efficiency
Memorability
Errors
Satisfaction

8. TYPES OF INTERFACES
• command line interface
• text interface
• graphical interface
• natural-language user interface

9. COMMAND-LINE INTERFACE
A command-line interface is a means of interacting
with a computer program where the user (or client)
issues commands to the program in the form of
successive lines of text (command lines).

10. TEXT-BASED USER INTERFACE
Text-based user interface (TUI) is a user
interface where by all output is presented in
the form of text.

11. GRAPHICAL USER INTERFACE
The graphical user interface (GUI ) is a type of user interface
that allows users to interact with electronic devices through
graphical icons and visual indicators such as secondary
notation, instead of text-based user interfaces, typed command
labels or text navigation.

12. XEROX ALTO

13. NATURAL-LANGUAGE USER
INTERFACE
• Natural-language user interface (LUI or NLUI) is a type of
computer human interface where linguistic phenomena such as
verbs, phrases and clauses act as UI controls for creating,
selecting and modifying data in software applications.

14. MENTAL CHARACTERISTICS OF THE
USER
A mental model is a person’s intuitive
understanding of how something functions based on
his or her past encounters, exposure to information,
and sound judgment.

15. HOW PEOPLE FORM MENTAL
MODELS Observation
Immersive Experience
Culture

16. TIPS FROM FREE DESIGNERS
• Try to learn something about users
• Come up with your own characters
• Brainstorm
• Use common design patterns
• Remember that we are all human, and
we are all United by the same
psychological principles

17. STAGES OF USER INTERFACE
DEVELOPMENT
User Flow Diagram
Brainstorming & Sketching
Understanding the Project’s Concept
Factors
of
influence
Choosing the Style of the Interface
Structure and Flow Validation
Style Validation

18. BRAINSTORMING & SKETCHING

19. USER FLOW DIAGRAM

20. CHOOSING THE STYLE OF THE
INTERFACE

21. CHOOSING AND CREATING THE
PREVIEW FORM
• Wireframe

22. CHOOSING AND CREATING THE
PREVIEW FORM
• Mockup

23. CHOOSING AND CREATING THE
PREVIEW FORM
• Clickable Prototype

24. CHOOSING AND CREATING THE
PREVIEW FORM
• Animated UI Flow

25. WHAT IS INTERFACE TESTING?
Interface Testing is performed to evaluate whether
systems or components pass data and control correctly to one
another. It is to verify if all the interactions between these
modules are working properly and errors are handled properly.
Interface Testing - Checklist
• Verify that communication between the systems are done
correctly
• Verify if all supported hardware/software has been tested
• Verify if all linked documents be supported/opened on all
platforms
• Verify the security requirements or encryption while
communication happens between systems
• Check if a Solution can handle network failures between Web

26. TYPES OF INTERFACE TESTING
This include testing each system individually. For example, billing system and
inventory management system for retail store should be able to operate
separately.
This is considered when testing include date, month and day reversed
A high-volume interface may require more Load Testing than a low-
volume interface, depending on the interface engine and connectivity
infrastructure
Individual systems
Edge cases -unexpected
values
Performance, load, and network testing
It ensures that the interface engine handles your standard workflows
as expected.
Workflow

27. PROSPECTS FOR THE DEVELOPMENT
OF INTERFACES

28. CONSOLIDATION OF
ACQUIRED KNOWLEDGE
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29. CHOOSE TWO CORRECT ANSWERS
(TYPES OF INTERFACE)
Object-
oriented
interface
Command
line
interface
Text user
interface
WIM
interface

30. HCI
UI
MENTAL MODEL
INTERFACE
TESTING
_________researche
s the design and use
of computer
technology, focused
on the interfaces
between people and
computers.

31. Semantic
interface
Biometric
technology
Brainloo
p

33. REFERENCES
• Information and Communication Technologies Part 1: Textbook/
D.Shynybekov. - Almaty: IITU, 2017. - 588 p.
• Information and Communication Technologies Part 2: Textbook/
D.Shynybekov. - Almaty: IITU, 2017. - 624 p
• June J. Parsons and Dan Oja, New Perspectives on Computer Consepts 16th
Edition - Comprehensive, Thomson Course Technology, a division of Thomson
Learning, Inc Cambridge, MA, COPYRIGHT © 2014.
• Lorenzo Cantoni (University of Lugano, Switzerland)James A. Danowski
(University of Illinois at Chicago, IL,USA) Communication and Technologies,
576 pages
• Craig Van Slyke Information Communication Technologies: Concepts,
Methodologies, Tools, and Applications (6 Volumes)/ ISBN 13:
9781599049496, 2008, Pages: 4288
• Utelbaeva A.K.,Utelbaeva A.K. Study guide for lectures on discipline
“Computer science”, Shimkent 2008, 84 pages.

34. JOBS