Fancy Car Rental System by:Abubaker Aidaroos Aljailani – H00154983Ali Mohamed Hassan AL Zaabi – H00136700Saif Abdullah Ali AlSadi – H00296533

Outline Systems Request – Business Case and Summary of

Requirements

FDD - Functional Decomposition Diagram

Context Diagrams

DFD - Data Flow Diagrams

Process Description – Structured English/Decision Tree/Table

Recommended Solution

Menu and Forms

Reports

Fancy car rental system based on basic Microsoft office and email system which delays the development of the company's improvements

Business background

Business backgroundDubai - HQ

Sharjah

Abu Dhabi (New Branch)

40 Employee 40 Employee

20 Employee

System request

• Based on structured analysis of SDLC (system development life cycle)• Follows the waterfall method• Reason for the system request is to convert the paper based

system into a online digital catalog system• Will allow the manager to monitor the market demand by

different system generated reports

System request•Benefits:• Increase productivity • Save processing time through the online system• Centralized database will synchronize the information

through the branches• Accurate information generation for better decision making

System requirement • System request is a feature that should be included in

the information system to meet the business requirements• Five board categories of system requirement :• Input• Output • Process • Performance • control

Functional decomposition diagram (FDD)

• A top down representation of a business process • Drawn like an organization chart• Business functional broken down to lower level

processes (process & sub process)

Functional decomposition diagram (FDD)

Context diagram

• Entities are related directly to the processes and sub process from the FDD diagram • May be internal or external entities

Context diagram

Data flow diagram (diagram zero)

•Exploded view of process zero contains:• One data storage• Four processes• Four entities• Arrows for data flow from and to the entities and

processes

Data flow diagram (diagram zero)

Process description tools

• Consist of three main methods (structure English, decision tree and table)• Is the detail of the functional primitive

Structure English• IF customer is above 18, and • IF customer has existing profile more than 1 year and rent

car more than 1 month • Classify as VIP customer and give 10% discount

• ELSE • Classify as normal customer and give 5% discount

• ELSE• Reject rental request

Decision trees

•A graphical representation of the conditions, actions and rules found in a decision table

Decision trees

Decision table

• Shows the logical structure with all possible combinations of conditions and resulting•All the possible outcome will be displayed in this

table

Decision table

System solution System interface consists of (Menu, Forms and

Reports)MENU FORMS REPORTS

Menu Interface

• Completely new switchboard which will allow easy way to navigate through the system by different users

• Categorized as per the process required by the user

Forms

• Consist of two main forms:

Customer registration

Will add or update the customer details

Car registration Will add or update the

car details

Reports • The system will allow a complete flexible ways of

report generation according to the managers need• Detailed report• Exception report• Summary report

Thank you for listening

Any Question ?