Car rental System - System Requirement Definition

Software Engineering Project

Car Renting Management System (CRMS) Software Requirements Specification Version 1.0

CRMS Software Requirements Specification

Version: 1.1 Date: 11-04-2016

Revision History Date 11-04-2016

Confidential

Version 1.0

Description Pre implementation SRS

, 2016

Author N. Ravindu Hasantha

Page 2


Version: 1.1 Date: 11-04-2016

Table of Contents 1.

2.

3.

Introduction

5

1.1 1.2 1.3 1.4 1.5

5 5 5 5 5

Purpose Scope Definitions, Acronyms, and Abbreviations References Overview

Overall Description

6

2.1 2.2 2.3 2.4 2.5

6 6 7 7 7

Product Perspective Product Functions User Characteristics Constraints Assumptions

Specific Requirements

7

3.1

7

3.2

3.3

3.4

3.5

3.6

Functionality 3.1.1 Create an account 3.1.2 Log in to the system 3.1.3 Search for vehicle 3.1.4 View vehicle with details 3.1.5 Request a text message notification when vehicle is available 3.1.6 Calculate cost 3.1.7 Reserve vehicle for renting 3.1.8 Update/Cancel reservation 3.1.9 Give feedback on vehicle 3.1.10 Log in with admin account 3.1.11 Add new vehicle/ vehicle category 3.1.12 Update vehicle details 3.1.13 Change vehicle status 3.1.14 Remove vehicle/ vehicle category 3.1.15 Change cost details 3.1.16 View reports 3.1.17 Send availability details via text message Usability 3.2.1 Customer usability 3.2.2 Admin usability’ Reliability 3.3.1 Availability 3.3.2 Mean Time between Failures 3.3.3 Mean Time to Repair 3.3.4 Accuracy Performance and Security 3.4.1 Response Time 3.4.2 Throughput 3.4.3 Capacity Design Constraints 3.5.1 Software Languages 3.5.2 Development Tools On-line User Documentation and Help System Requirements

Confidential

, 2016

7 8 8 9 9 9 10 10 11 11 11 12 12 13 13 13 14 14 14 14 14 14 15 15 15 15 15 15 15 15 15 15 15 Page 3


Version: 1.1 Date: 11-04-2016

3.7 3.8

Purchased Components Interfaces 3.8.1 User Interfaces 3.8.2 Hardware Interfaces 3.8.3 Software Interfaces 3.8.4 Communications Interfaces 3.9 Database Requirements 3.10 Licensing, Legal, Copyright, and Other Notices

Confidential

, 2016

15 16 16 17 17 17 17 17

Page 4


Version: 1.1 Date: 11-04-2016

Software Requirements Specification 1. Introduction 1.1 Purpose This document consist of all the functional and nonfunctional and requirements of the Car Renting Management System and all the other requirement related details. This is the first version of the SRS document and this will be used as a reference and a guideline for design and development processes ahead. This document is recommended to be viewed by the development team, car renting company staff and other stakeholders of the system. This is used as a way of making sure all the stakeholders of the system will have a complete and clear understanding about the requirements of the system.

1.2 Scope The system is divided into two subparts according to the users of the system: Customer subsystem – System consist of all the functionalities related to customers. Business subsystem – System consist of all the functionalities related to business end. (Company staff) This document covers entire system and all its subparts. The functionalities of the system are also clearly divided into the above mentioned subparts and explained in simple and understandable way.

1.3 Definitions, Acronyms, and Abbreviations CRMS – Car Renting Management System SRS – Software Requirements Specification Customer – The person who wants to rent a car System Admin – Car renting company staff member who is in charge of the system.

1.4 References [1] "Tutorialspoint," [Online]. Available: http://tutorialspoint.com. [Accessed 08 04 2016]. [2] "Scribd," Scibd Inc, [Online]. Available: https://www.scribd.com. [Accessed 09 04 2016].

1.5 Overview

Confidential

, 2016

Page 5


Version: 1.1 Date: 11-04-2016

The following things will be discussed in this document. Overall Description. This section will discuss general factors that affect the product and its requirements. The perspective of the product Product Features and User Requirements Users and user characteristics General Constraints Assumption and Dependencies Specific Requirements Detailed descriptions about functional and nonfunctional requirements. Interfaces and relevant details Details about database requirements Other details such as licensing, copyright & applicable standards Support Information This section consist of support information which will make SRS easy to use.

2. Overall Description This purpose of this section is to give details about what user can expect from CRMS. This will provide an overview of requirements gathered.

2.1 Product Perspective CRMS will automate the manual car reservation process which was carried out by going to the business place or using a phone call. The new system will consist of two sub systems. The customer subsystem will handle all the functionalities related to customers. The business subsystem will handle all the functionalities related to the car renting company. The new system will be able to undergo evolution in a much simpler way and will be more adaptable to the changing systems. The upcoming changes in the near future will be predicted and the system will be designed in a way to adapt to the changes that will occur over the years . 2.2 Product Functions The following are the high level functionalities of the product. These functions are carefully broken down into specific functions and explained in the 3.1 section of the document. User account management Reservation of vehicle and related functions User feedback function

Confidential

, 2016

Page 6


Version: 1.1 Date: 11-04-2016

Upgrade/ expand the system Modification of the system Report creation 2.3 User Characteristics There are two types of users in from each subsystem of the system. Customers: Most probably new to the system Do not require any technical expertise Simple knowledge to use internet System admin: High technical expertise Experience and domain knowledge Well aware of system functionalities 2.4 Constraints Time constraints Since this is a module project the main constraint is Time. The total time available for the system development is 4 months. 2.5 Assumptions The software tools required for the system development are available to the developers. The requirements gathered are correct and achievable The final deliverable of the project can be hosted in a server

3. Specific Requirements 3.1 Functionality Customer Subsystem Functionalities 3.1.1 Create an account Introduction Customer need to create an account to log into the system. The customer can create an account using the email address. Input

Confidential

, 2016

Page 7


Version: 1.1 Date: 11-04-2016

E-mail address User name Password Basic details  Name  NIC number  Address  Contact number Processing An account will be created for the customer and details will be saved in the database. Output An email will be sent out to customers requesting to confirm the account. 3.1.2 Log in to the system Introduction The customer can log into the system using username/ email and password. Input Username/ email Password Processing The username/email and password will be authenticated and customer will be able to log in given the correct details. Output The customer view of the system will be visible to the user. 3.1.3 Search for vehicle Introduction The customer will be able to search for vehicle or choose and vehicle category. Input Keywords for searching: Vehicle name Vehicle category Processing All the related vehicles will be searched from the database. Confidential

, 2016

Page 8


Version: 1.1 Date: 11-04-2016

Output All possible results will be shown to the customer. 3.1.4 View vehicle with details Introduction The customer can view the detail of the vehicle selected. Input Selection of the vehicle. Processing All the details of the selected vehicle will be fetched from the database. Output Details of the vehicle: Name and model Registration number Picture Cost Availability Previous feedbacks 3.1.5 Request a text message notification when vehicle is available Introduction In case of vehicle is unavailable, the customer can request a text message notification when it is available. Input Selection of the text message notification feature. Processing The request information will be saved in the database and when the vehicle is available notification will be generated. Output Text message request confirmation notification. 3.1.6 Calculate cost

Confidential

, 2016

Page 9


Version: 1.1 Date: 11-04-2016

Introduction The customer will be given the opportunity to calculate an approximate cost for the renting process after selecting a vehicle. Input Time duration (days) Distance per day (km) Processing The cost will be calculated using input and the cost information in the system. Output Calculated cost. This is an approximate value and the actual cost will be determined using the usage.

3.1.7 Reserve vehicle for renting Introduction Customer can reserve the vehicle for renting after considering all the information. Input Renting date and time Renting duration Processing The reservation information will be added to the database. The availability of the vehicle will be changed. Output An email will be sent to the customer confirming the reservation.

3.1.8 Update/Cancel reservation Introduction Customer can cancel the reservation or update details of the reservation. Input Cancel request Updated details Processing Confidential

, 2016

Page 10


Version: 1.1 Date: 11-04-2016

In the case of cancellation the reservation records will be deleted from the database. When reservation is updated the changed details will be saved in the database. Output Reservation cancellation/ updated notification. 3.1.9 Give feedback on vehicle Introduction The customers can view their rented vehicles history and add a feedback about the vehicle and the service provided. Input Feedback from the customer Processing The feedback will be added to the relevant vehicle. Output Feedback added successfully notification.

System admin functionalities 3.1.10 Log in with admin account Introduction Admin of the system can log into the system using existing account. Input Admin username and password Processing Admin login details authenticating. Output Admin view of the system. 3.1.11 Add new vehicle/ vehicle category

Confidential

, 2016

Page 11


Version: 1.1 Date: 11-04-2016

Introduction Admin can add new vehicle or a new vehicle category to the system. Input Vehicle category details. Vehicle details Processing New vehicle category/ vehicle added to the database. Output Vehicle/ vehicle category successfully added notification. 3.1.12 Update vehicle details Introduction Details of existing vehicles can be changed by the admin. Input Changed details. Processing Previous details are replaced with the new details in the database. Output Updating details successful notification. 3.1.13 Change vehicle status Introduction Admin can change the vehicle status to Available or Not Available. Input Change status request. Processing The status of the vehicle changed to the given status. Send text message notification to requested users if the vehicle became available. Output Confidential

, 2016

Page 12


Version: 1.1 Date: 11-04-2016

Changed vehicle status successfully notification. 3.1.14 Remove vehicle/ vehicle category Introduction Admin can remove a vehicle or remove a whole category from the system. Input Vehicle/ category remove request. Processing Vehicle/ category removed from the database. Output Vehicle/ category removed notification. 3.1.15 Change cost details Introduction Admin cab change the current rates of the system according to business needs of the company. Input New rates Processing New rates are added to the database and cost calculation will be done using new rates. Output Rate changed notification. 3.1.16 View reports Introduction Admin can view reports of the transactions happened in the system. Reservation details of all the vehicles in a given time period. Reservation details of a selected vehicle/ vehicle category in a given time period. Input

Confidential

, 2016

Page 13


Version: 1.1 Date: 11-04-2016

View reports selection. Processing Relevant fields from database tables are acquired with respect to given parameters. Output The requested report. System functionalities 3.1.17 Send availability details via text message Introduction The system will be sending a text message to requested customers when an unavailable vehicle becomes available. Input Changing status of a notification requested vehicle from unavailable to available. Processing The contact number of the relevant customers are taken from the database and text message will be sent. Output Text message with available details sent to relevant users.

3.2

Usability

3.2.1

Customer usability Customer end of the system must be very easy to understand. The time taken for customer to be familiar with the system should not be more than 5 minutes. The average task time for a random customer should not exceed 3-6 minutes.

3.2.2 Admin usability’ Administrator of the system will be given a maximum 3 days training for the system. All the functionalities of the system should be clear and 3.3 Reliability 3.3.1

Availability System is a business solution so the availability of the system is critical. The system will be available 99.8%.

Confidential

, 2016

Page 14


Version: 1.1 Date: 11-04-2016

3.3.2 Mean Time between Failures MTBF value of the system should be very high value ranging from 6-12 months. 3.3.3 Mean Time to Repair MTTR value of the system should be very low. The estimated value for this system is 3-5 hours. The development should be focused to reduce the current value as much as possible. 3.3.4 Accuracy The system is responsible for business transactions. The accuracy of the system will be critical and it will be tested with great measures. 3.4 Performance and Security 3.4.1

Response Time Response time of the system should be very low. Average response time: 3-6 seconds Maximum response time: 10-15 seconds

3.4.2 Throughput Throughput of the system should be considerably adequate to provide a continuous service for the customers. 3.4.3 Capacity The system should be able to accommodate up to 5000 users. 3.5 Design Constraints 3.5.1

Software Languages PHP, HTML, JS will used as programming languages to develop the system.

3.5.2

Development Tools Sublime Text 2, Web Storm, Intellij IDEA, PHPMYADMIN wil be used as development tools.

3.6 On-line User Documentation and Help System Requirements N/A 3.7 Purchased Components N/A

Confidential

, 2016

Page 15


Version: 1.1 Date: 11-04-2016

3.8 Interfaces 3.8.1

User Interfaces

3.8.1.1

Confidential

Customer View of the system

, 2016

Page 16


3.8.1.2

3.8.2

Version: 1.1 Date: 11-04-2016

Admin view of the system

Hardware Interfaces N/A

3.8.3

Software Interfaces An intelligent text message sender API which is able to send programmable text messages will be integrated with the system to enable the text message sending functionality.

3.8.4

Communications Interfaces The system will be hosted on a free hosting site (Heroku).

3.9 Database Requirements Database for the system will be created using MySQL. The design of the database is provided with the System Architecture Document. 3.10 Licensing, Legal, Copyright, and Other Notices N/A

Confidential

, 2016

Page 17

Car rental System - System Requirement Definition

Recommend Documents