Self-Service Checkout (OneZone)

Temporal Attributes

Feedback

Regular feedback lets the user know where they are and have more confidance in the checkout system

User must be sent backinformation about what action has actually been done, what result has been accomplished (The touch screen could make a clicking sound or be highlighted in a different colour to indicate when it's been clicked.)

Tacticle

Auditory

Visual

Must offer strong resistance to heavy usage

Quick touch screen reactions (One touch system)

Cooperation & Complexity

User friendly navigation

Customer needs to experience a simple design

Step-by-step guidance

Saftey Issues

Must be cleaned from bacteria

Materials used on checkout must be non-toxic

Safe storage for hot food and dog

Nature of Content

Security Precautions needed to avoid shopliffting

Swift and simple transaction method

People may be in a rush to get to lectures

Input

Screen

Touch screen buttons should be sized, coloured and grouped appropriately to avoid user confusion

Screen layout must be in a logical fashion

Resistant to constent/heavy usage

Non-smudging and Non-reflective

Accurately calibrated touch screen system with a quick reaction time

Pictures on screen to match the food selected

Money

Chip & Pin

Cash

Output

Screen

Non-reflective (Easily readable)

Energy Saving and Enviromentaly Friendly

Lights

Green light above checkout

The customers transaction is running smoothly and no help is required

Flashing Orange light above checkout

Alerts member of staff to assist the customer with a problem with the checkout

Speech

Volume Levels

Range of different languages

Preference (Male/Femal)

Comunication

System-to-Consumer

Screen information must be clear and adequately sized for all users

Language selection should be easily reached

System-to-Company

Money tracking system for reporting and monitoring sales figures

Usage

Efficiency

System needs to be checked regularlary in order to eliminate any errors of common user problems

Effective functionality

Novice/Expert

Different levels of capability operting the system need to be taken into consideration (Teens/ elderly/ disabled)

Consistent user interface and design

Physical Aspects

Disabilites

Visual

Impairement

Colour-Blindess

Motor/Dexterity

Wheel ChairAccessibility

Must cater for users with athritis, large hands or tenis elbow

Height Restrictions

Auditory

Speech Volume Level needs to be sufficient for those with hearing impairements

Psychological Aspects

Opertaing Self-Service Checkout

Frustration (Machine Errors)

Confusion

Pressure (Queues behind user)

Minimal user cognitive load (Simple instructions)

Social

Ease of use

Aids a positive user experience

A selection of different languages should be easily attained to gain an equal experience for international students

Pressure- Must be enough checkouts to avoid the build up of queues during peak times. This could cause the user a intimidating and negative experience, thus detering the customer to not return.

Enviromental

The system should have an adjustable volume level due to the noise of busy canteen, particularly in peak times

Must have a safe place to store hot food and drink when the customer is paying for their meal

Must be easy clean regularlary and the checkout should not bear small grooves that can trap bacteria

Orginisational

There must always be at least one member of staff to assist the customers with any issues during their purchase

Should not require maintanance other than cleaning

There should be a button to call for assistance when required

Self-service checkouts must be cost affective and not a financial burden to the Univeristy