HCI in Multimedia Learning 2012

8/13/2019 HCI in Multimedia Learning 2012

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Apa HCI itu?

HCI = Human Computer Interaction

(IMK = Interaksi Manusia Komputer)

Peran HCI adalah untuk meningkatkan

kualitas interaksi antara manusia dan sistem

komputer

Terutama permasalahan yg dihadapi user

ketika berinteraksi dg multiple channels ofcommunication


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Pertimbangan Praktis HCI dari

Sistem Multimedia

1. User Types and capabilities

2. Mental Models

3. Memory

4. Navigation

5. Training

6. Ergonomics & environment

7. Prototyping


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1: User types

Four main types of user:

Novice = pemula

Casual = cukupan

Experienced = berpengalaman

Professional = ahli

The above will be included in one of the

following:Discretionary (flexible=bebas memilih)

Non-Discretionary (wajib = tidak bisa memilih)


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2: Mental Models

Model mental adalah representasi konseptual dari

seseorang guna memahami lingkungan (sistem).

Contoh: bayangkan cara kerja telepon, cara

gunakan solder. Model mental berisi model structural dan

functional

how it works

knowing how to use it Model mental akan berkembang dengan

sendirinya melalui interaksi (meski tidak akurat).

Perlu desain interface dan feedback yg baik untuk

membentuk model mental yang akurat.


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Gunakan Simbol (Metaphors)

Meaningless information is more difficult to

remembergunakan contoh kehidupan

sehari-hari

Concepts are more difficult than objects toremembergunakan visual, animation

Analogies, metaphors and icons are therefore

better for to help explain the workings of asystem

Meaning is taken more quickly and is easier to

maintain in memory


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4: Navigation

Problems of spatial disorientation

Assessing much information

Distraction from goal directives

Complexity in the interface


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Solutions to assist navigation

Guided Tours

Useful for learning specific topic

Provide different tours for specialist interests

Can leave tour at any point and then return later

History Lists

Text and Graphics

Use graphical miniatures rather than text namesKeep cache of last few nodes permanently visible


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Book marks

smaller and more manageable than history lists

depends on user to specify

need to be able to remove as well as add

Backtrack

not always consistent

should always be available should always be activated in same way


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Overview Diagrams

Global and local overview

Meta-navigation using viewports over parts of

structureDifferent overviews

Nutrition structured by vitamins, food source, disease

Landmark nodes - Home, Topic menus


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5: Training

Usability criteria:

how long does it take to learn

the speed of performance

what is the rate of errors

how easy is the recovery

subjective satisfaction

how much is remembered how much is unused


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6: Ergonomics & environment

Health and safety requirements

Task requirements

Visual display

Keyboard requirements

Workstation layout and posture

Lighting

Room climateNoise

Personal space


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7: Prototyping

Interactive product design and construction is

labour and time intensive

So you cannot afford many mistakes

Prototyping as an iterative approach can be

useful in managing blocks of work

User centred design approach


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User Feedback & Design

Early or Late?

Early user feedback gives you time to incorporate

changes

Late user feedback is more precise, since theproduct is nearly ready

Analytic or informal?

Analysis of user feedback may be necessary

Informal feedback may be all that is required


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Design rules in use

Desain rule ini merupakan: principles for user

interface design sebagaimana digunakan di

industry

The information is split into Input/Output

Dialogue

Conceptual modelGeneral


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Dialogue

Use of menus and prompts

Context-dependent messages

User control

Natural response time


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General

Easy to use, "user friendly"

Make it as simple as possible (but no simpler)

Follow standards wherever applicable

The key is to understand the users needs and

the users types of conceptual models


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Summary

Sangatlah penting dalam pengembangan

pembelajaran berbasis multimedia (PBM)

untuk memperhatikan HCI guna meningkatan

kualitas interaksi antara pengguna danprogram.


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Diskusi

Diskusikan bagaimana 8 prinsip multimedia

pembelajaran oleh Mayer bila

diimplementasikan dengan memperhatikan

HCI ini.

HCI in Multimedia Learning 2012

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