HOME-MESS SYSTEM Presentation II: Design & Prototype 1

Arundhati, Ihab, Ibrahim, Fareed, Zain

INTR

OD

UC

TIO

N

Prototyping is the key node of iterative development

Prototyping provides us with tangible models which help users visualize possibilities and identify failures.

Explore the development from an idea to a prototype

Construct part of the development lifecycle used to provide valuable insight into the look-and-feel, and the general workflow of an application.

OB

JEC

TIV

ES

Defining the Problem

Identifying user requirements

Development of a supportive design solution

Designing of a low-fidelity prototype.

Creating a working model of the system so that conceptual ideas can be 'road tested', alternatives explored and user feedback gathered at an early stage.

USER REQUIREMENTS

Scenario1

•Task List

Scenario 2

•Direct Message

Scenario 3•Direct Message/ Alert

•Shopping List

Scenario 4•Maintenance List

•Phone Message

Scenario 5•Direct Message

•Event

USER REQUIREMENTS- CONT.

DESIGN STAGE

OUR APPROACH

J. Nielsen distinguishes two levels of prototyping according to the level of interaction.

Levels of prototyping

Man-Machine Interface

Functionalities

It is the 'surface interface'.

Functionalities are not working, but it allows to achieve a perception test.

Allows to check the local behaviour of the interface

Identifies the critical points where usability problems are likely to appear.

HORIZONTAL PROTOTYPE

VERTICAL PROTOTYPE

It implements a consistent set of functionalities in order to allow the user to achieve a typical scenario of use. Some of this functionalities could be simulated.

This second stage of the prototyping phase consists in a series of user tests during which the critical points raised previously are evaluated.

STRUCTURE

Main/Home Screen

Menu

Events

Int. MsgsSettingsPhone Msgs

Surv Cam CustomTasks

PROTOTYPING STAGE

PLANNING

Prototype

Pilot Study

Collaboration

Scenarios

PROTOTYPE CREATION

PROTOTYPE CREATION

DEMOIhab, Arundhati

CO

NC

LU

SIO

N Prototypes start off as empty

shells

Usability problems detected

It will be used to to evaluate the usability of the whole system.

WHAT’S NEXT?

Evaluation:

•Data Analysis: What is new, what could we improve?

•User Testing: What new problems present themselves?

•New Designs: Designing to solve problems and appeasing the users.