SAD - WoW - Sample (Jay)

Waiter On Wheels – Group 6 System Analysis and Design

ASIA PACIFIC INSTITUTE OF INFORMATION TECHNOLOGY

SYSTEM ANALYSIS AND DESIGN 2

FINAL DOCUMENTATION FOR WAITERS ON WHEELS

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1.0 Introduction

Waiters on Wheels is a restaurant meal-delivery service started in 1997 by Sue and Tom

Bickford. To make a long story short, after the restaurant prepares the meal to order, it charges

Waiters on Wheels a wholesale price, and the customer pays retail plus a service charge and

tip. However, the business rapidly expanded, and the company realized they needed a

customer computer system to support their business operations. They hired my consultant firm

to help them define what sort of a system they needed.

Our development team consists of 3 members, Harry Ho Lap Cong, Haris Irawan, and Hew Jenn

Shyung. We started working on the project on 2nd October 2006 and the following is the

outcome of our project

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1.0 Project Background

2.1 Logical Assumption

In the case study, some logical assumptions have been made. Among them are that

there will be 4 drivers or waiters on wheels, 2 at non-peak hours and all 4 at peak hours that

will deliver food ordered. Operation hours will be from 10.00 am to 12.00 am daily while peak

hours will be from 12.00 pm to 2.00 pm and 6.00 pm to 8.30 pm. Drivers that work full time

(peak and non-peak hours) will be paid RM 1,500.00 a month while part-time drivers (peak

hours only) will be paid RM 600.00 a month.

Besides that, there will be 2 operators taking orders during operation time. These 2

operators will be paid RM 1,200.00 a month.

Walkie-talkies will be provided for operators and drivers to ease communication.

Waiters on wheels will only be in operation around an area, Technology Park Malaysia,

Sri Petaling and around Bukit Jalil, and restaurants that are included in our services include 1

KFC restaurant, 2 mamak stalls, Restoran Jamal and Restoran Akmal, and 2 chinese coffeeshop,

Restoran Chuan Lee and Restaurant 888 which provide variety of Chinese food.

Service charges will be RM 2.00 per order from each restaurant and RM 1.00 per

kilometer from the restaurant to the destination.

Receipts will be given showing distance, price of order and service charges. Customers

need to sign the receipt upon delivery as acknowledgement of delivery.

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2.2 Objective

1. To design a system that is cost-efficient

2. To design a system that is usable, scalable, and reliable

3. To design a system that is free of human error

4. To design a system that reduces delivery processing time

5. To design a system that is accessible to customers at the comfort of their homes via internet.

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2.3 Problems Identification and Suggested Solution

1. Peak Hour

During peak hour (lunch hour and dinner time) the number of order would be

significantly high. While during non-peak hour, the number of order would be relatively

low. Therefore the company cannot afford to hire too many permanent drivers just to

cope with the peak hour and have no job for the drivers to do during non-peak hour.

This would be a waste of financial resource if the man power is not fully utilized.

Suggested Solution: Hiring 2 permanent drivers and 2 part-time drivers. This would cut

down the cost of hiring excessive drivers and man power would be fully utilized. This is

explained in detail in Logical Assumption

2. Prank Call

Prank call is a common problem in food delivery industry. For food delivery industry, a

prank call is the situation where a person orders food for someone else without the

receiver’s permission, and very often the receiver would refuse to accept the food and

pay for it. The utmost problem with prank call is that a big amount of order would be

placed and there will be no receiver. Not only it would waste the food but also waste

many aspects of resources from the delivery company such as driver’s time and vehicle

petrol.

Suggested Solution: When a customer orders food for the first time, he is required to

register himself in the delivery company database. During the registration process, the

customer will be prompted for his address. The address that he entered would be the

address the food will be delivered. In other words, he is not able to order food for

someone else. Once the customer is registered, the delivery company would collaborate

with Telekom Malaysia to ensure the phone number and the address does not conflict

with each other. Therefore, using a mobile phone is not able to make an order. A fix

number is required to avoid prank call.

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3. Cancelling or changing order when meal is cooked.

Customers might change their mind. If any customer cancel or change the order after

the meal is cooked, it would place WoW in disadvantage.

Suggested Solution: As the customer change the order via calling the operator, the

operator explain to the customer that the food is already cook and the food will be on

their door step soon. However if the customer insists that he would like to cancel the

food and refuse to pay for it, the food will be return back to the restaurant. The

restaurant would sell the food to their customers in the restaurant with a cheaper price.

Besides, the delivery company would black list this particular customer who cancel or

change food order if he repeat raising the problem for second time in 6 months.

4. Difficulty finding delivery place.

It is common for driver from any industry to face the problem of difficulty of finding

targeted location. The drivers from WoW are required to deliver the food on time,

therefore failing to find the customer’s address would decrease the company credibility.

Suggested Solution: Each driver will be assigned a location as their respective location.

Whatever order come from that area will be handled by the respective driver. This

would allow the driver to be more familiar with “his location” so that he can accomplish

his task more effectively.

5. Customers are unsure of what to order.

Customers frequently ask for the menu from the operator as they are unsure of what to

order. The customers would shamelessly request the operator to list out all the available

food. This situation would slow down the operation of WoW because the operator is

unable to take other customers’ order if the phone is occupied by one particular

customer. And do not be surprise there are many customers would raise the same

problem.

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Suggested solution: There will be a timer being installed in the operator telephone. One

call can only occupy the line for 2 minute. If one particular phone call exceed 2 minute, a

pre-recorded message will be play and the phone will be hung up. The pre-recorded

message is “We would like to apologize that your session has reach 2 minute and it is

expired, please call again to make your order.”

However if the operator notice that the customer is unable to make a decision of what

food to order, the operator will recommend the “Everyday Special” meal. If the

customer is still not satisfied with the “Everyday Special” meal, the operator would

invite the customer to visit the company webpage to see the full list of food menu.

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2.4 Opportunity

By having such a system, Waiters on Wheels gains advantages as following.

Internet fees in Malaysia are much cheaper than other countries. For example, Telekom

Malaysia Streamyx is coming out with affordable and cheap internet package. By paying RM 66

per month, you can get 512kbps with unlimited access. Or if you need a faster connection

speed, you can get the 100Mbps for only RM88. Unlike other countries such as Australia, they

charge the internet fee by how many bytes you use every month. Because of that, Waiters on

Wheels’ customers does not need to worry about the phone bill because through internet,

phone call is free!

As everyone knows, Malaysia is a multi-racial country such as Malay, Indian, Chinese, Orang Asli

and etc. Every race have their own taste in food. For example coconut milk, chillies and belacan

are the main ingredients in Malay cooking while Chinese are more on rice. Because of Waiters

on Wheels offer different kind of food, it gains more and more business because people get

more choice on food.

In conclusion, Waiters on Wheels gains more advantages than disadvantages. Customers feel

satisfy not only because of the variety of food but also the delivery service system they have.

It’s easy, fast, and efficient.

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2.0 Information Requirement

3.1 Summary of Fact Finding

According to what we have gone through the interview, we can see that McDonalds have a

very systematic way of management. There's always a backup available when something is

going wrong. McDonald has a call center. The server is located at India because there is

advanced but yet cheap. In case the server goes wrong, they have a backup server which is

located near KLCC, KL.

Each outlet has its own riders and each outlet has a distinct coverage area. If a customer

calls in from a location that is not covered, the automated system will tell the customer that

their area are not covered and directs them to the nearest outlet. Each outlet has their own

coverage areas because they want to make sure that orders will be delivered to customer in

30 minutes time. A rider usually only carry 1 order but if circumstances call for it, it can be

happen that rider carry more than 1 order.

Besides that, they have a roaster whereby says who would play the order taker, the runner

and the cashier on a given day. When the rider is on a trip, they carry cell phones along so

that when facing problem such as mechanical breakdown, they can call in to notify the

outlet.

Before setting out, the drivers take an amount of cash with them as change. This amount

taken is recorded, along with the amount of payment due to be collected. The driver

collects the amount from the customer, and returns everything to the outlet once he/she

returns. Everything is checked and logged, They have very strict policies with money

handling.

The riders are given an attendance allowance which is paid based on the time they spend on

standby at the outlet. They are given other allowances such as hand phone top up, laundry

and petrol. Of course, they are also given a fixed monthly salary.

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3.2 Feasibility Studies 3.2.1 Schedule 3.2.1.1 Gantt Chart

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12


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3.1.2.1 PERT Chart

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3.2.2 Technical

3.2.2.1 Hardware

In the system, there is a server and a desktop. The server contains the website and database for

customer information. An operator operates the desktop and stores information into the

server. When a customer who already has his or her information stored in the database calls,

the details of the customer will be shown on the desktop. If however a new customer calls, the

operator is required to fill in a form to store the customer’s details into the database. Below is

the optimal technical requirement to serve the system.

Comparison

of both desktops

shows that Dell is the

superior choice. This

is because among

others, it has the

cheaper price and

more value for money

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Dell Dimension

E521

HP Business

Desktop d325

Microtower

Comparison

AMD Athlon 64

Processor 3500+

AMD Athlon XP

Processor 2800+

Dell has faster

processor

Windows XP Home

Edition

Windows XP Home

Edition

Same

512 MB DDR-2

SDRAM

256 MB DDR

PC2700 SDRAM

Dell has bigger

capacity RAM

160GB SATA HDD

3.0GB

40GB HDD Dell has bigger

capacity HDD

1-Year Limited

Warranty

Optional Upgrade

To 3 Years

3-Year Parts, 1-Year

Labour, 1-Year On-

Site Warranty

Same

Price : RM 1949 Price : RM 2399 Dell is cheaper


specifications. As shown above, it is clear that the Dell desktop is a better choice than the one

compared to it.

Dell PowerEdge SC

440

HP ProLiant ML 110 Comparison

Intel Pentium D

Processor 915,

2.80GHz, 800MHz

FSB

Intel Pentium 4

Processor, 3.0GHz,

800MHz FSB

2.8GHz is sufficient

for operation

2x2MB L2 Cache Integrated 1024kb

L2 ECC Cache

Dell has bigger

cache

512MB DDR-2 ECC

SDRAM

256MB PC3200

DDR SDRAM

Dell has bigger

capacity RAM

80GB SATA II HDD 80GB Ultra ATA

Drive

Same

48X CD-ROM 48X CD-ROM Same

1-Year Limited

Warranty

1-Year Limited

Warranty

Same

Price : RM 1749 Price : RM 2888 Dell is cheaper

Comparison in both servers above shows that Dell is a better choice. This is because,

Dell has better value for money specifications and the Dell server is much cheaper compared to

the one put in comparison with it.

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3.2.2.2 Software

Technical feasibility is the process of proving that the concept is technically possible.

Example of the system itself we describe it as Computerized Inventory System:

A Computerized Inventory System is a computer program that tracks inventory and sometimes

creates automated replacement orders that the customer wants to.

Software requirements:

1. Operating System

All of computers must need Operating System. In this system, we use Windows XP

Professional to manage all of data. We use this operating system because it is very

simple and smart, easy to use, very comfortable and many people use this Operating

System.

Specifications for this Windows XP professional are:

Manufacturer Microsoft corporation

OS provided Microsoft Windows XP Professional

License type Complete package

Hard drive space Minimum 1.5 GB

Minimum processor Intel Pentium 233 MHz

RAM Minimum 64 MB

General License pricing standard

Price US$ 192.54

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2. Microsoft Office

In order to complete our Operating System and for database storage, we need the

Microsoft Office. Microsoft Office professional edition 2003 is very completely useful for

this system because in the case of installing the Microsoft XP, the Microsoft Office is

some of the Microsoft package.

This Microsoft Office consists of Word, Excel, PowerPoint, and Access. Our database is

also using Microsoft access.

The new user price is US$499, but for upgrade price it will be US$329.

3. Antivirus

All systems that have connection with the internet should have antivirus. Because

antivirus able to against all illegal program that come when the computer connect to

internet. One of the best antiviruses in the world is Kaspersky Anti-Virus 6.0.

For this system we can use Kaspersky Anti-Virus 6.0 antivirus. More capabilities from

Kaspersky antivirus are protection from viruses, Trojans and worms, protection from

spyware, adware and other potentially junk program, scanning for archived files and

removable data storage device, instant database updates, simple and easy to use.

Price for this antivirus is US$39.95 for one year and US$63.92 for two years. We should

to choose this price for two years, because it is very save.

4. Firewall

Firewall is a type of security for internet connection. One type of firewall is ZoneAlarm.

ZoneAlarm is designed to protect your connected PC from hackers. This software

controls the door and allows which data can and cannot run from and to this computer.

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And this software also blocks internet traffic while the computer not connects to the

internet.

Also Firewall is automatically install on the Microsoft XP Professional service pack 2 so

the user is more easy because of that special function.

The advantages for using this software are the computer is very safe, and this firewall is

very affective and easy to use for control our computer.

The price for this software is US$19.95.

5. Spyware

Spyware is type of virus that infects the computer by using the P2P (Peer to Peer).

Spyware is similar with Trojan horse. Spyware Doctor is the example of spyware the

function of spyware doctor is remover and protection. This software can erase all of

spyware, adware, Trojan horse, keyloggers, spybots, and adbots. Sometimes when we

opened a website, there will built-in with a popup. So, spyware Doctor will block this

site.

Price for this software is US$29.95.

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3.2.3 Operational Feasibility

3.2.3.1 PIECES Framework

PERFORMANCE

The performance of the system is expected to have a higher respond time relatively compared

to a customer personally travel to a restaurant and order food. It is measured from the moment

the consumer steps out of his house door till the time when the food appears at the table is

estimated to be not more than 45 minutes. However with the smart implementation of the

"Waiters On Wheels" system, the estimated respond time taken is around 15 to 25 minutes.

The respond time here refers to the moment the customer call the "Waiters On Wheels" center

until the food arrive to his door. The bandwith of our service covers areas like Technology Park

of Malaysia, Bukit Jalil and Sri Petaling which are located in Kuala Lumpur. Customers from

these areas can most likely expect their food to arrive at their doorsteps within 10minutes upon

ordering.

INFORMATION

Customers can choose from the vast variety of food and place their order by browsing the

official online “waiter in wheels” menu containing the full list of food the restaurant caters This

online system of ordering is tailored to be user friendly placing the needs, wants and demands

of customers as their primary concern Upon careful selection of their desired food, simple step

by step instructions are given to surfers of the site directing them as to how to go about placing

their orders online. After placing their order, information regarding the method of payment and

various details of charges billed on them will be conveyed to the customer. Customers can also

choose to ring the center to retrieve information about the everyday ongoing special

promotion, or even directing their enquiries pertaining to large orders for the rise of special

occasions like birthdays, anniversaries or even company dinners. All these information is made

available serving the sole purpose of “convenience at the doorsteps of customers”

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ECONOMY

The current economy status is that the Bickfords realize the demand from customers and as

they contracted with a lot of well known restaurant, the income is stabilized. However, the

Bickfords can increase their revenue by reducing cost. Since delivering service has been their

main service and ways of income, they need a lot of drivers so that different drivers can take

different orders and at the meantime drivers can meet their customer’s needs on time. Hence,

instate of using motorbikes that uses petrol, if possible, Bickfords can actually modify the

motorbikes engine so that they could use gas to run the motorbikes. It might be costly in the

beginning, but in the long run it defiantly can reduce a lot of transportation cost.

Bickfords can also create some package or set meals that include free drinks or discount rebate

for the regular customers. This not only can attract new customers but they could win the

loyalty of the regular customers.

CONTROL

The system will be used by three types of users.

The first type is administrator who has absolute power to alter the "contents" of the program.

It includes editing the menu such as deleting or adding a new food to the list and even changing

ice of certain items The second type will be the waiters. Their responsibility is to receive orders

from the call center directing them the location for them to collect the requested deliveries and

the respective destination the food has to be sent to. Upon completion of their deliveries to

their clients, they will send a response back to the call center informing them that they have

completed their task successfully. The third type of user would be the operator who is located

in the call center. Their duty is to receive the calls of customers, answering all their queries and

doubts and taking orders It is also within the responsibility of the operator to be utilizing the

system to work out the cost of the meal and direct available "Waiter On Wheels" to collect and

deliver the food.

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EFFICIENCY

"Waiters On Wheels" will be utilizing 4 drivers as waiters. Among the 4 of them, 2 waiters will

undertake the role of full time workers while the other two will be expected to fill in lunch and

dinner hours. 2 operators will be stationed at the base where one will be working full time and

the other part time. The part timers will be a great addition during peak hours so as to assist

the full timers generating faster turn overs, increasing efficiency and ultimately their sales. Each

operator will be assigned a desktop computer to operate the system. Through the use of this

system, the operators will then be able to trace where the call is coming from and assign

available waiters to collect and deliver the food. Along the way of delivering food to the

customers, the waiters will be communicating with the operator through the use of cellphones.

Should a sudden incident occur where the food wasn’t able to successfully reach the

destination, the waiter would then be able to communicate with the operator and then the

operator will issue out new commands corresponding to the new situation, maximizing

efficiency.

SERVICE

The reliability of the system can be vividly demonstrated through the use of unique identity for

every user to log in to the system provide a very reliable system as every user of the system will

need to log in using their unique identity. Therefore the Chief Executive Officer of "Waiter On

Wheels" will be able to track any mistake that done by any user. In other words, the users

would not be able to doing "irresponsible" work to the system.

The content of the system can be edited from time to time by certain users (administrator). This

is specially designed by the developers of the system to make sure the system is flexible and

expandable.

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3.2.4 Economical

3.2.4.1 Operational Cost

Types of Cost Cost (RM)ElectricityPetrol Motors MaintenanceSoftware LicenseLaborMarketing

24007300300

2700360005000

TOTAL 53700

3.2.4.2 Development Cost

Type of Cost Cost (RM)Software CostHardware CostSoftware developmentInstalling softwareTraining

25004000

1200040003000

TOTAL 25500

3.2.4.3 Benefit

Type of Benefit Cost (RM)Physical marketing cost savedMan power savedPhone bill savedNet profit

15000180008000

30000TOTAL 71000

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3.2.4.4 Return of Investment

Year Cost Accumulated

Cost

Benefit Accumulated

Benefit

0 72900 72900 0 0

1 53700 126600 71000 71000

2 53700 180300 71000 142000

3 53700 234000 71000 213000

4 53700 287700 71000 284000

5 53700 341400 71000 355000

6 53700 395100 71000 426000

ROI = (Accumulated Benefit – Accumulated Cost) / Accumulated Cost

= (426000 – 395100) / 395100

= 0.7821

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3.2.4.5 Break Even Chart

25


3.2.4.6 Payback Return (in RM)

Year 0 1 2 3 4 5 6 Total

Benefit 0 71000 71000 71000 71000 71000 71000 426000

Present

Value

Factor

(10%)

1 0.909 0.826 0.751 0.683 0.621 0.564

Present

Value

0 71000*

0.909

71000*

0.826

71000*

0.751

71000*

0.683

71000*

0.621

71000*

0.564

Total

0 64539 58646 53321 48493 44091 40044 309134

Cost 72900 53700 53700 53700 53700 53700 53700 395100

Present

Value

Factor

(10%)

1 0.909 0.826 0.751 0.683 0.621 0.564

Present

Value

72900 *1 53700*

0.909

53700*

0.826

53700*

0.751

53700*

0.683

53700*

0.621

53700*

0.564

Total

72900 48813 44356 40328 36677 33347 30286 306707

Total

Payback

Period

-72900 15726 14290 12993 11816 10744 9758 2427

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4.0 Analyzing

4.1 Context Diagram

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4.2 Data Flow Diagram Level 1

28


4.3 Data Flow Diagram Level 2 Process 3.0

29


4.4 Data Flow Diagram Level 2 Process 4.0

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4.5 Entity Relationship Diagram

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5.0 Physical Design

In any of the Methodologies, such as SDLC, SSADM, Waterfall Model, and RAD, the

Physical Design phase is one of the phases that come right after the Logical Design. In

SDLC or Systems Development Life Cycle, the Physical Design comes in the Fourth Stage,

which is designing the recommended system.

Physical Design is the Logical Systems Specification and Technical System specification

which are used to create a physical database design and a set of program specifications.

Another way of defining Physical Design define as “the phase of data base design

following the logical design that identified the actual data base tables and index

structures used to implement the logical design.”

The importance of having this Physical Design is to help us as well as assist us when it

comes to developing the system and testing the developed system during the

Implementation phase. The Physical Design becomes a blueprint of what the system

supposes to look like during the developing stage and becomes a basis for the

configuration and content of that blueprint.

When designing the system, there are a few guidelines which are needed to follow.

Detailed planning of the system

Logical design of the system

Identify the required fields which are needed based on the information given

Consistent design of the system such as colors, buttons, icon, and etc.

Conveniences of storing information which includes update and delete

information

Ensure that the system meets the purpose of which they are designed for

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Design a friendly user system that is simple and attractive which includes the

Screen Design, Report Design, and Database Design

5.1 Screen Design

The four guidelines used to design the Screen Design are:

1. Screen Support Transportability of Knowledge

2. Screens must Be consistent

3. Screen design must Provide Feedback

4. Screens must Use Appropriate colors

5. Screen must Make the User Boss

5.1.1 Screenshots of Screen Design

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(Loading Screen)

34


(Main Menu)

35


(Add Customer)

36


(Add Restaurant)

37


(Add Order)

38


(Edit Employee)

39


(Add Manager)

5.2 Database Design

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Database design is the process of produce details of data model of a database that will

meet a user's requirements. Database design contains all the need of logical and

physical design preference and physical storage parameters needed to generate a

design in a Data Definition Language, which can then be used to create a database.

Database design can be used to describe many different parts of the design of an overall

database system. It can be thought as the logical design of the base data structures used

to store the data in the relational model these are the tables and views. However, the

term of database design could also be used to apply to the overall process of designing,

not just the base data structures, but also the forms and queries used as part of the

overall database application within the Database Management System or DBMS.

The guidelines developing the Database Design are:

Each record should contain a unique identifier as the primary key

Determine the relationships between different data elements

Apply data on the basis of the relationships to a logical structure.

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(Customer Database Design)

(Employee Database Design)

42


(Manager Database Design)

(Order Database Design)

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6.0 Implementation

Developing phase or the Implementation phase, which is “the last phase of the SDLC in

which the analyst ensures that the system is in operation and then allows users to take

over its operation and evaluation.”

“In the simplified software development methodology described in this course,

implementation is the process of constructing an actual artifact from a design. In

software development, this includes at least the steps of coding, testing and debugging.”

In other definition, Implementation is defined as “a class definition is split into an

interface and an implementation (the `what' and the `how'). The implementation defines

how the services offered in the interface are implemented.”

During the implementation phase, there few steps that we are required before finalizing

the system. To do this, we must conduct a system test to ensure that the system works

properly as well as running smoothly and most importantly is to meet the user’s needs

and the company’s objectives based on the system.

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6.1 Selection of Development Tools

The Development Tools are the tools for consent to carry out during Developing phase or the

Implementation phase. The selections of Development Tools which are required for developing

the system are divided into 2 important tools. These tools will guide us to our basic

accomplishments.

Programming Tool – a tool which is used to develop the computer application or the

system program

Database Tool – a tool which is used to develop the database application or the

database system

6.1.1 Programming Tool

A programming tool is a program or application that software developers use to create,

debug, or maintain other programs and applications. The term usually refers to

relatively simple programs that can be combined together to accomplish a task, much as

one might use multiple hand tools to fix a physical object.

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6.1.2 Database Tool

Database system or Database application is “a type of application that helps you keep

track of lists of information. Database applications make it easy to recall and update

information and to create reports of subsets of information.” To do that, we need the

Database Tool to assist us in creating such system.

Microsoft Access 2003

The tool that was used during developing the database system was Microsoft Access

2003 which can be known as a Database Management System or DBMS. It is a software

package that allows us to create such database which includes features such as adding,

changing, as well as deleting data in the database. It also sorts the data in the database

as well as retrieves back the data in the database, and it can create forms and reports

using the data in the database.

Microsoft Access is a relational database management system from Microsoft, packaged

with Microsoft Office Professional which combines the relational Microsoft Jet Database

Engine with a graphical user interface. It can use data stored in Access/Jet, SQL Server,

Oracle, or any ODBC-compliant data container. Skilled software developers and data

architects use it to develop powerful, complex application software. Relatively unskilled

programmers and non-programmer "power users" can use it to build simple

applications without having to deal with features they don't understand. It supports

substantial object-oriented (OO) techniques but falls short of being a fully OO

development tool.

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6.2 Coding

Option Compare Database

Private Sub Form_Open(Cancel As Integer)

' Minimize the database window and initialize the form.

' Move to the switchboard page that is marked as the default.

Me.Filter = "[ItemNumber] = 0 AND [Argument] = 'Default' "

Me.FilterOn = True

End Sub

Private Sub Form_Current()

' Update the caption and fill in the list of options.

Me.Caption = Nz(Me![ItemText], "")

FillOptions

End Sub

Private Sub FillOptions()

' Fill in the options for this switchboard page.

' The number of buttons on the form.

Const conNumButtons = 8

Dim con As Object47


Dim rs As Object

Dim stSql As String

Dim intOption As Integer

' Set the focus to the first button on the form,

' and then hide all of the buttons on the form

' but the first. You can't hide the field with the focus.

Me![Option1].SetFocus

For intOption = 2 To conNumButtons

Me("Option" & intOption).Visible = False

Me("OptionLabel" & intOption).Visible = False

Next intOption

' Open the table of Switchboard Items, and find

' the first item for this Switchboard Page.

Set con = Application.CurrentProject.Connection

stSql = "SELECT * FROM [Switchboard Items]"

stSql = stSql & " WHERE [ItemNumber] > 0 AND [SwitchboardID]=" & Me![SwitchboardID]

stSql = stSql & " ORDER BY [ItemNumber];"

Set rs = CreateObject("ADODB.Recordset")

rs.Open stSql, con, 1 ' 1 = adOpenKeyset

' If there are no options for this Switchboard Page,

' display a message. Otherwise, fill the page with the items.

If (rs.EOF) Then

Me![OptionLabel1].Caption = "There are no items for this switchboard page"

Else

While (Not (rs.EOF))

Me("Option" & rs![ItemNumber]).Visible = True48


Me("OptionLabel" & rs![ItemNumber]).Visible = True

Me("OptionLabel" & rs![ItemNumber]).Caption = rs![ItemText]

rs.MoveNext

Wend

End If

' Close the recordset and the database.

rs.Close

Set rs = Nothing

Set con = Nothing

End Sub

Private Function HandleButtonClick(intBtn As Integer)

' This function is called when a button is clicked.

' intBtn indicates which button was clicked.

' Constants for the commands that can be executed.

Const conCmdGotoSwitchboard = 1

Const conCmdOpenFormAdd = 2

Const conCmdOpenFormBrowse = 3

Const conCmdOpenReport = 4

Const conCmdCustomizeSwitchboard = 5

Const conCmdExitApplication = 6

Const conCmdRunMacro = 7

Const conCmdRunCode = 8

Const conCmdOpenPage = 9

' An error that is special cased.49


Const conErrDoCmdCancelled = 2501

Dim con As Object

Dim rs As Object

Dim stSql As String

On Error GoTo HandleButtonClick_Err

' Find the item in the Switchboard Items table

' that corresponds to the button that was clicked.

Set con = Application.CurrentProject.Connection

Set rs = CreateObject("ADODB.Recordset")

stSql = "SELECT * FROM [Switchboard Items] "

stSql = stSql & "WHERE [SwitchboardID]=" & Me![SwitchboardID] & " AND [ItemNumber]=" &

intBtn

rs.Open stSql, con, 1 ' 1 = adOpenKeyset

' If no item matches, report the error and exit the function.

If (rs.EOF) Then

MsgBox "There was an error reading the Switchboard Items table."

rs.Close

Set rs = Nothing

Set con = Nothing

Exit Function

End If

Select Case rs![Command]

' Go to another switchboard.50


Case conCmdGotoSwitchboard

Me.Filter = "[ItemNumber] = 0 AND [SwitchboardID]=" & rs![Argument]

' Open a form in Add mode.

Case conCmdOpenFormAdd

DoCmd.OpenForm rs![Argument], , , , acAdd

' Open a form.

Case conCmdOpenFormBrowse

DoCmd.OpenForm rs![Argument]

' Open a report.

Case conCmdOpenReport

DoCmd.OpenReport rs![Argument], acPreview

' Customize the Switchboard.

Case conCmdCustomizeSwitchboard

' Handle the case where the Switchboard Manager

' is not installed (e.g. Minimal Install).

On Error Resume Next

Application.Run "ACWZMAIN.sbm_Entry"

If (Err <> 0) Then MsgBox "Command not available."

On Error GoTo 0

' Update the form.

Me.Filter = "[ItemNumber] = 0 AND [Argument] = 'Default' "

Me.Caption = Nz(Me![ItemText], "")

FillOptions

' Exit the application.51


Case conCmdExitApplication

CloseCurrentDatabase

' Run a macro.

Case conCmdRunMacro

DoCmd.RunMacro rs![Argument]

' Run code.

Case conCmdRunCode

Application.Run rs![Argument]

' Open a Data Access Page

Case conCmdOpenPage

DoCmd.OpenDataAccessPage rs![Argument]

' Any other command is unrecognized.

Case Else

MsgBox "Unknown option."

End Select

' Close the recordset and the database.

rs.Close

HandleButtonClick_Exit:

On Error Resume Next

Set rs = Nothing

Set con = Nothing

Exit Function52


HandleButtonClick_Err:

' If the action was cancelled by the user for

' some reason, don't display an error message.

' Instead, resume on the next line.

If (Err = conErrDoCmdCancelled) Then

Resume Next

Else

MsgBox "There was an error executing the command.", vbCritical

Resume HandleButtonClick_Exit

End If

End Function

53


6.3 Quality Assurance

Quality assurance can be defined as a planned and systematic procedure that is essential in

providing adequate confidence as assurance that the system will function properly and reliably.

It includes quality control that ascertains whether the system is performing up to standards and

has achieved the demand quality.

Quality Assurance covers all stages of this project, from the design to the development, and

installation of the system. One of the most widely used standards for quality assurance

management is the PDCA (Plan-Do-Check-Act) approach, which is also known as the Shewhart

cycle. The main goal of quality assurance is to ensure that the final product fulfills or exceeds

client expectations.

6.3.1 Quality Assurance Program

Quality represents the overall features and characteristics of the final product that has

the ability to satisfy the needs of its users. Quality Assurance Program can be defined as

a program where the plans are documented for implementing the quality system.

The importance of this program is the formal procedure of implementing quality

assessment and quality improvement techniques to guarantee the user or client that a

professional approach was undertaken. In order to achieve that objective, testing is

required to simulate the actual usage of the system.

54


6.3.2 Testing

Testing can be defined as the process of simulating a working environment to evaluate

the developed system to ensure conformity with the system specifications as well as to

identify the key differences between expected and actual results.

Testing is an important module in projects as it will aid in maintaining the system.

During this evaluation period, it will indicate to us whether the user or client is satisfied

with the performance of the developed system. As a result of testing, the quality of the

system could be determined.

Testing Objectives:

To certify that the database system is fully incorporated and efficient.

Identifying errors that may occur and provide solutions.

Analyze system processes and features.

Perform a final test of the system to make certain that the system meets

design specifications and requirements.

Ensure that the users are satisfied with the system.

6.3.3 Test Plan

A test plan is a well thought up plan that tests the system based mainly on the test

objectives. This includes the design and the coding of the overall system. The results of

this test plan would indicate to the developers the successfulness of the system.

55


There are four parts in the test plan which is identified as:

a) Unit Testing

- Test is conducted on every module to identify any signs of error that

occurs. This allows concentration in resolving the errors in the specific

modules.

b) Integration Testing

- Test is conducted to inspect the integration between the databases. This

is important to prohibit any unnecessary duplication of data.

c) System Testing

- Test conducted to benchmark the overall performance of the system.

This is to make sure the system is efficient at all times.

d) Acceptance Testing

- This is a test to obtain user acceptance and their ability to quickly adapt

to the new system.

6.3.4 Test Cases

Test cases are a standard part of software development that implements a

variety of important functions in the software. Such test cases make use of

identified inputs to allow comparison between the actual outputs obtained with 56


the expected accurate output. Test cases are often performed by developers

throughout developmental stages, to make sure that the software does not fail.

The main purpose of having test cases is to prove the value of the system and

also to reveal its disadvantages during the testing stages. These test cases are

conducted to expose errors, limitations of the system and programming errors of

any type before the system is fully implemented.

Test Case: Unit Testing

Test Procedure Expected Results

Actual Results

Consistency of data information? Yes Yes

Consistency of variable names and information input? Yes Yes

Functionality of the system? Yes Yes

Function of the Primary key? Yes Yes

Can the user edit the Primary key? No No

Record navigation removed? Yes Yes

Navigation bars removed? Yes Yes

Windows are movable? No No

Windows are resizable? No No

All views are restricted to those specified? Yes Yes

Can the records be retrieved during the ordering process? Yes Yes

Are all the relevant buttons functional? Yes Yes

Can the customer’s sales invoice be printed? Yes Yes

57


Can the reports be viewed? Yes Yes

Are the raw information properly arranged in report layouts? Yes Yes

Are all employees able to login? Yes Yes

Test Case: Integration Testing


Actual Results

Consistency of data information between each module? Yes Yes

Consistency of variable names between each module? Yes Yes

Consistency of information input between each module? Yes Yes

Navigation between each module? Yes Yes

Test Case: System Testing


Actual Results

Consistency of the time response in the layout? Yes Yes

Time response acceptance for searching the data? Yes Yes

Time response acceptance for printing the data? Yes Yes

Time response acceptance for editing the data? Yes Yes

Time response acceptance loading the images? Yes Yes

58


Test Case: Acceptance Testing


Actual Results

User finds it user-friendly of the screen layout? Yes Yes

User finds it user-friendly of the user interface? Yes Yes

User finds it user-friendly with the navigation buttons? Yes Yes

User finds it user-friendly of the output expectation? Yes Yes

User finds it user-friendly with the colors and images? Yes Yes

User finds it user-friendly with the colors and images? Yes Yes

6.3.5 Test Results

The result of the test that was carried out based on the system was a success.

The advantages of having the testing phase were to:

e) Provide confidence to the developers and the users

f) Indication that all bugs and problems are fixed before releasing the final

version

g) The need of users involvement helps to improve the system

The system started well with good progress, and end with good progress.

59


7.0 Critical Appraisal

7.1 By Harry Ho Lap Cong

This is the group assignment that we continue from last semester which we have done our

proposal and research. In this semester, we have built a system according of what we have

done last semester. In this group assignment, I has been dedicated to design the website. In

order to do the website, I have done some research on food types and prices on internet and

some famous restaurant among the people, take some food’s picture and post on the website.

To edit the photo, I use Adobe Photoshop CS2 to add some effect so that it looks nicer and

attractive. Besides that, I also use photoshop to create button for the menu bar. It looks simple

yet stylish. To complete the website, instead of using dreamweaver, I use Microsoft Frontpage

because I found that Microsoft Frontpage more easy to use and user friendly. To do all these

things, it does require some skills and I’ve recalled back what I have learnt before in previous

semester.

In the process of doing our assignment, we actually decided to use Microsoft Visual Basic as our

main system but because 3 of us not very familiar with Microsoft Visual Basic, we decide to use

Microsoft Access which is more easy to use. Haris was the one who take care of database job.

60


At last I want to thank you Haris and Jenn Shyung who always very helpful and willing to do

anything related to this assignment. And thank you to Ms Palvin who always gives us idea to

improve our system.

And this is the interface of our assignment.

61


8.0 Summary

In a nutsheel, WOW is a food delivery system which provide service that delivering food to the

customer. The customer will either make the order through a phone call or making order

online. Driver will be in the headquater every morning to print a list of what their tasks are for

the particular day. They would deliver food throughout the day. As they have completed a task,

they will inform the headquater that they are free so that the headquater can assign another

task to them.

For orders that the customers made through phone line, the operator would contact the driver

to pick up the food and deliver it to the customers’ door step. However, as the driver is on his

journey to pick up the food, the restaurant will start preparing the food. Hence, it’s expected

that as the driver reaches the restaurant, the restaurant would have get the food ready. In

other words, there will be no waiting time for the restaurant and the driver.

The first phase of developing a computerize system for Waiter On Wheels has been completed

successfully. Our group are very proud of our good team work throughout the first phase of the

development and are excited about developing the system for the second phase.

62


9.0 Appendix

Date : 7 March 2007

Time : 2.00 pm

Attendance : Harry, Haris, Jenn Shyung.

Discussions : Designing the webpage.

1. Design logo.

2. Find pictures of food.

3. Design the webpage.

4. Meeting adjourned.

Prepared by,

..........................................

( Hew Jenn Shyung )

63


Date : 17 March 2007

Time : 1.00 pm


Discussions : Discussions on how to do the database.

1. Enter data into tables.

2. Create forms.


Prepared by,

..........................................

( Hew Jenn Shyung )

64


Date : 28 March 2007

Time : 3.00 pm


Discussions : Discussions on using Microsoft Access to make program.

1. Create pages using Microsoft Access.


Prepared by,

..........................................

( Hew Jenn Shyung )

65


Date : 10 April 2007

Time : 5.00 pm


Discussions : Discussions on completing the project.

1. Review documentation.

2. Compile works.


Prepared by,

..........................................

( Hew Jenn Shyung )

66


9.2 Sample Progression Report

To: Ms. Palvinderjit Kaur, SADN Lecturer

From: Group 6 - Harry Ho (Project Manager)

Subject: Progression Report of WOW System Development

Date: 13 December 2006

Group 6 consists of 4 members: Haris, Jenn Shyung, Voon Dih, and I - Harry. The team

has been working together for the past 6 weeks and completed certain tasks which are:

Date Collection and defining WOW system.

Operational Feasibility Report

Schedule Feasibility Report

Technical Feasibility Report

Economical Feasibility Report

Throughout the development of WOW, the team held 2 meetings in APIIT Library

Discussion Room 3 on Thursday evening. The role of each member has been clearly defined in

the meeting. Each member is satisfied with the position.

Data collection has been completed through interviewing McDonald. The data has been

shared among other groups as few (4) groups have been working together to gather relevant

data.

Operational Feasibility, Economical Feasibility and Schedule Feasibility Report have been

completed by Voon Dih as his role is the system analysis. Technical Feasibility Report has been

accomplished by Jenn Shyung and Haris as they are the designer and tester.

Currently the team is working smoothly. All the team members are giving commitment

to the development of WOW system. The term “inactive” member is not suitable for any of the

group member as all of the members are putting equal effort to make sure the development of

the system is running smooth.67


Prepared by,

____________________

Harry Ho

68


9.3 Workload Matrix

Harry Ho Lap

Cong Haris IrawanHew Jenn Shyung

Introduction

Logical

Assumption

Objective

Problem

Identification

Opportunity

Interview

Summary of

fact finding

Gantt Chart

Pert Chart

Work Load

Matrix

Operational

Feasibility

Technical

Feasibility

69


Economical

Feasibility

Methodologies

Context

Diagram

Summarize

Fact Finding

Data Flow

Diagram

ERD

Critical

Appraisal

Minutes of

Meeting

Progression

Report

Project

Summary

Summarize

Documentatio

n

70


I have seen this document and I do agree with it.

______________________ _______________________

(HEW JENN SHYUNG) (HARRY HO LAP CONG)

______________________

(HARIS IRAWAN)

71


9.4 Sample Interview

Who takes the calls?

We have a centralized call center. The server is located in India, as the technology there is

advanced, while the cost is low. Orders taken are relayed to branches from the main server.

If the main server is down, we have a local backup server, located somewhere in KL, near

KLCC.

Do outlets share riders?

No. Each outlet has a distinct coverage area, and the areas so not overlap between outlets.

What happens if a customer calls in from a location that is not covered?

The automated system tells the customer that their area is not covered and directs them to

the closest outlet.

What is the average delivery time (per round trip?)

30 minutes, including the time it takes to prepare the order.

How many riders are usually stationed at an outlet?

It depends on the outlet; this (Macro) outlet requires optimally 15 riders, whereas right now

we only have 10.

Do riders usually handle more than 1 order per trip?

Usually, no but if circumstances call for it, it can be arranged.

Scheduling is done manually?

Yes. We have a daily roster of people responsible for handling the day’s orders. The roster

says who would play the order taker, the runner and the cashier on a given day.

What if a customer over orders to the point where a single bike is unable to carry the full

load?

It is very unlikely that that might happen. In addition to the container you see behind every

bike, the riders also may use backpacks and supplementary containers to carry the load. In

72


event of even all that being not enough to take the load, multiple riders may be dispatched

to carry out that particular order.

How does the outlet communicate with the driver when he/she is on a trip?

The drivers carry cell phones, and can call in to notify the outlet of any problems he/she may

be facing, for example in case of a mechanical breakdown.

How is the money from the trip handled?

Before setting out, the drivers take an amount of cash with them as change. This amount

taken is recorded, along with the amount of payment due to be collected. The driver collects

the amount from the customer, and returns everything to the outlet once he/she returns.

Everything is checked and logged, as we have very strict policies with money handling.

Are the riders paid a fixed salary, or are they awarded based on the distance?

On top of an attendance allowance which is paid based on the time they spend on standby

at the outlet, they are given other allowances, for example, hand phone, laundry and petrol

allowance. They are also given a fixed monthly salary.

73


9.5 Bibliography

A. David and F. Guy, Information Systems Development Methodologies, Techniques & Tools

4th Edition, 2006, Singapore

Dell.com.my, 2006, Dell Servers, Storage and Networking [online], Malaysia, Availabe from

http://www1.ap.dell.com/content/products/category.aspx/enterprise?

c=my&cs=mybsd1&l=en&s=bsd [Accessed 2 January 2006]

E. Malcom, 2000, SSADM Version 4: A User’s Guide Second Edition, British

G. Mike, 1995, SSADM A Practical Approach, Great Britain

J. A. Hoffer et al, 2002, Modern Systems Analysis & Design Third Edition, New Jersey

74

http://www1.ap.dell.com/content/products/category.aspx/enterprise?c=my&cs=mybsd1&l=en&s=bsd

http://www1.ap.dell.com/content/products/category.aspx/enterprise?c=my&cs=mybsd1&l=en&s=bsd

Documents

SAD - WoW - Sample (Jay)