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Manage users and update general information about the application
Users
Ordinary users use the application to find a gas station in a price range or/and in a specific location
Gas station owner
Gas station owners use the application to update the price of the fuel and also update the state of the station in the unforeseen circumstances like maintain the station's tanks
Context Diagram and interfaces
Context Diagram
Interfaces
Actor
Logical Interface
Physical Interface
Administrator
GUI
Screen, keyboard
User
GUI
Screen, keyboard
Gas station owner
GUI
Screen, keyboard
Stories and personas
James is a delivery man who works for a resturant. As he has to drive his car through different destination every day and he must be on time to get the customer's orders as soon as possible he has always had problem with running out of fuel. To solve this problem he started using the EzGas application. using this application he is able to find the nearest gas station with the lowest price quickly and not be worry about running out of gas.
before that he sometimes was not able to get the orders to the customers on time and because of that had struggle with his boss most of the time. he thinks that EzGas application is an important part of his career now and help him a lot.
Sam owns a gas station. As his gas station is not in the city center, usually there is not enough customers over there. Using the EzGas application now he is able to offer competetive prices and services and advertise his gas station on the app. As a result now his gas station is most of the time full of cars and people who knows that he offers the best prices in the area.before that however sam tried to provide good services and prices he did not have enough customers. So he thinks that the EzGas application helps gas station owners like him to make themselves known for people.
Sara is an application developer who has been working in this field for years.
due to her expreince her boss recently asked Sara to start providing support for users of EzGas application. She has to help users either drivers and owners of gas station to solve their problems. Sara is also suppose to publish news and new features of the application.
Functional and non functional requirements
Functional Requirements
ID
Description
FR1
The user can set the maximum and minimum price of the fuel.
FR2
All user can update their personal information in the app like phone number.
FR3
The user can set the distance between her/his location and the gas stations.
FR4
The user can submit feedback or write comments for the gas stations.
FR5
It is possible for all user to log in or log out to record the history of activities.
FR6
User can share a favorite station via a link for others.
FR7
All users can write a bug report for the administrator.
FR8
It is possible for users to mark stations as a favorite station.
FR9
Gas station owner can submit the new price.
FR10
Gas station owner can change the state of the station. For example: Closed, Maintain, ...
FR11
Administrator can gather the information from the bug reports section.
FR12
Administrator can register a new gas station in the application.
FR13
Administrator can reset the password of users.
Non Functional Requirements
ID
Type (efficiency, reliability, .. see ISO 9126)
Description
Refers to
NFR1
Usability
Application should be used with no training by anyone
All FR
NFR2
Performance
All functions should complete in < 1 sec
All FR
NFR3
Portability
The application runs on MS Windows, Android, and IOS
All FR
NFR4
Security
All data should encrypt first and then store in database
All FR
NFR5
Localization
Fuel prices should be displayed in Euros
All FR
Use case diagram and use cases
Use case diagram
Use Cases
Use case 1, Set up new business for gas station owner
Actors Involved
Administrator, Gas station owner
Precondition
Administrator receives a request for new gas station
Gas statin needs some tools and infrastructures to connect to the internet
Postcondition
Other User can find the station on the application
Nominal Scenario
Gas station owner gives the information to the administrator for registration
Administrator register the data in the application and inform the gas station owner
Variants
Use case 2, Find a station in the application
Actors Involved
Users, Gas station owner
Precondition
Both users and gas station owner use their smartphone or PC to search
Postcondition
The result will show on the application
Nominal Scenario
Users should set price and distance in the application to find the best result
Variants
If the input value is abnormal the application popup a warning to the users
Use case 3, Manage the report bugs
Actors Involved
Administrator
Precondition
Application works with some unseen bugs
Postcondition
Application improved
Nominal Scenario
User report the bugs by the application. The administrator checks the reported bugs and sends them to the developers
Variants
If the text of the report is not adequate the user will receive a warning
Relevant scenarios
Scenario 1
Scenario ID: SC1
Corresponds to Use case 1
Description
Set up new business for gas station owner
Precondition
No gas station location exist on the app
Postcondition
Gas station located on the application map
Step#
Step description
1
Administrator check received data for a new registration
2
Administrator input new data on the fields and register new gas station
3
After storing the data in DB, Administrator received a completion message
Scenario 2
Scenario ID: SC2
Corresponds to Use case 2
Description
Find a station in the application
Precondition
Both users and gas station owner use their smartphone or PC to search
Postcondition
The result will show on the application
Step#
Step description
1
User fill fields like price and location and submit the inputs
2
After retrieving the requested data by the application, the result will be shown on the screen
Scenario 3
Scenario ID: SC3
Corresponds to Use case 3
Description
Manage the report bugs
Precondition
Application works with some unseen bugs
Postcondition
Application improved if the reported bugs are acceptable by the developers
Step#
Step description
1
Users submit a report about a bug in contact us section
2
Administrator will receive a notification about a user repot
3
Administrator check the text or image correspond to a bug
4
Administrator sends the reported bug to the developers
