Analysing the usability of existing systems, and Designing an interactive system with a user-centred design process.

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Taranjit Singh Matharu                Student Number – 2037523

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Introduction

This is the second piece of assessed coursework for this module. This coursework relates to the two major practical skills that I’ve learnt on this module:

  • Analysing the usability of existing systems, and
  • Designing an interactive system with a user-centred design process.

Ideas in this course are subjective and qualitative, therefore there is not one single ‘right‘ answer to this coursework. So I will demonstrate various understandings of the HCI issues, present arguments based upon them, and explain why I believe my answer to be correct.

The aim of coursework two is to test my skills in designing and implementing a usable interactive system. Relating to coursework’s one, online ticket booking system, I have to design, build and test a new usable online cinema ticket booking system

There are four stages to this coursework, each reflecting on the User Centred Design process. Each stage builds upon each other, with a report written on each. These are the four stages:

Stage 1: HTA

        

        Conduct a hierarchical task analysis of the manual booking cinema tickets.

        Stage 2: Requirements Gathering

Compile and document a collection of requirements for your new online ticket booking system (Referring to coursework 1)

Stage 3: Design

From previous stage, produce a design for your proposed website. Produce a storyboard for the website.

Stage 4: Evaluation by user observation

Prototype the design in the previous stage, and test it, and record the observations.

These are the four steps I am going to report on, with a conclusion to follow, to evaluate my User Centred Design process.

Hierarchical Task Analysis (HTA)

This task analysis gives a description of the sort of tasks that workers in a cinema undertake, when a customer comes into book a ticket. This HTA describes the existing system before starting on a new system to replace it. The idea of this analysis was to find out what the old system allows the users to do and hopefully allow me to understand what is wanted from the old system. The analysis will contribute to requirements and be useful in design.

I decided to visit my local Odeon cinema in Uxbridge, and analysed the manual task of booking a ticket. I walked up the stairs to the entrance, the doors opened automatically and noticed the welcome sign (not relevant). The next step was to check what films were showing, and the timings. I chose my film and went to the booking office to get my ticket. I noticed various ticket prices as well as student discount prices and disabled access message, which tells the customer to tell staff if they need special disability access. I then asked how many seats were left, which were 65, I was allowed to sit anywhere I chose, so I paid, and received my ticket.

I got my ticket with ease, I knew what film I wanted to watch, so all I had to do was to check the timings. I spoke to one of my friends who used to work in a cinema and discussed a number of scenarios that may arise when booking a ticket; all the seats have been booked, provisions for disability, allocated seating. A customer may also choose to book a ticket by the time of the show, location of the cinema or the different films being shown.

  1. Booking a ticket

1        Choose a cinema

  1. Area of location
  2. Distance
  3. Travel by car or bus
  4. Go to eat (Fast Food)

2        Go to Cinema and select a film

  1. Check the films on show
  2. Check the timing of the show
  3. Check the film actors
  4. Check the duration of the film

        3        Book ticket if not sold out                                                

                3.1         Tell the cashier the film you want to see

  1. Tell the cashier the time of showing
  2. Tell the cashier the type of ticket you want

4        Payment

4.1        Pay by card

  1. Pay by cash
  2. Take receipt

4.4        Take ticket

Plans

Plan 0: do 1; once decided do 2; repeat 2 until film has been chosen; then do 3; do 4.

Plan 1: do 1.1, 1.2, 1.3, 1.4 in any order to decide which cinema to choose.

Plan 2: do 2.1; do 2.2; then 2.3, 2.4 in any order

Plan 3: if ticket available do 3.1; do 3.2; do 3.3 if not do plan 2 again

Plan 4; do either 4.1 or 4.2, then do 4.3; do 4.4

Plan 0 – describes the overall task of booking a ticket, task 2 has been repeated because if you want to choose a film, you would want to know who stars in the film and length of the film and so on. Task 2 is repeated until a film has been chosen. Then you tell the cashier the selected film and you pay for the ticket and get your receipt in task 4.

Plan 1 – choosing the cinema is the first task. We normally decide where we want to go and how far it is. Transport and eating out is the next step after that.

Plan 2 – describes the task of selecting a film. You would check which film is on show first, the timing and then the actors and duration.

Plan 3 – once the selection has been made from task 2, you tell the cashier your selection and the timing, and then the type of ticket you want.

Plan 4 – the last step is the payment, which you can do either by cash or card, you then collect your receipt and ticket and go and watch the film.

Identifying Requirements

The task in booking a ticket is quite complex. There are many decisions to make, as so many options are available to the customer, such as the cinema and the various films that are showing. So we need a system that will offer the same choices but at the same time be flexible.

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The goals to be supported in the new system will be to select a cinema from a number of locations. A film menu describing each film with various information such as duration, which would help in the selection process.  A flexible payment method and options such as disability needs, information on seating will be made.

So from the manual task I would keep the first two tasks. Choosing the cinema and film would be a good idea. Telling the cashier is a task that will be thrown out, as you are selecting from the screen and there is ...

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