Self-Service Checkout

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Self-Service Checkout (OneZone)

Contexts

Orginisational

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

There should be a button to call for assistance when required

Should not require maintanance other than cleaning

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

Enviromental

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

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

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

Social

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.

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

Ease of use

Aids a positive user experience

People

Psychological Aspects

Opertaing Self-Service Checkout

Minimal user cognitive load (Simple instructions)

Pressure (Queues behind user)

Confusion

Frustration (Machine Errors)

Physical Aspects

Disabilites

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

Motor/Dexterity

Height Restrictions

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

Wheel ChairAccessibility

Colour-Blindess

Impairement

Usage

Consistent user interface and design

Novice/Expert

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

Effective functionality

Efficiency

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

Technologies

Comunication

System-to-Company

Money tracking system for reporting and monitoring sales figures

System-to-Consumer

Language selection should be easily reached

Screen information must be clear and adequately sized for all users

Output

Speech

Preference (Male/Femal)

Range of different languages

Volume Levels

Lights

Flashing Orange light above checkout

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

Green light above checkout

The customers transaction is running smoothly and no help is required

Energy Saving and Enviromentaly Friendly

Non-reflective (Easily readable)

Input

Money

Cash

Chip & Pin

Screen

Pictures on screen to match the food selected

Accurately calibrated touch screen system with a quick reaction time

Non-smudging and Non-reflective

Resistant to constent/heavy usage

Screen layout must be in a logical fashion

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

Activities

Nature of Content

Swift and simple transaction method

People may be in a rush to get to lectures

Security Precautions needed to avoid shopliffting

Saftey Issues

Safe storage for hot food and dog

Materials used on checkout must be non-toxic

Must be cleaned from bacteria

Cooperation & Complexity

Step-by-step guidance

Customer needs to experience a simple design

User friendly navigation

Temporal Attributes

Quick touch screen reactions (One touch system)

Must offer strong resistance to heavy usage

Feedback

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.)

Visual

Auditory

Tacticle

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