Software Requirements Specification Report for a Project

Chapter 3:

REQUIREMENTS

3.1 Functional Requirements

• It should provide schedule/timetable without any of clashes among faculties, day, time and room that must be visible to all.
• It should generate a report about the registered complaint to the admin and response report to the user who has submitted his queries.
• Secure registration and profile management facilities for different users.
• It should provide details like e-learning facilities, server room details, software installation procedures etc. to students.
• It should generate alerts via SMS.

3.2 Non- Functional Requirements

3.2.1  Safety Requirements

If there is extensive damage to a wide portion of the database due to catastrophic failure, such as a disk crash, the recovery method restores a past copy of the database that was backed up to archival storage (typically tape) and reconstructs a more current state by reapplying or redoing the operations of committed transactions from the backed up log, up to the time of failure.

3.2.2 Security Requirements

Security systems need database storage just like many other applications. However, the special requirements of the security market mean that vendors must choose their database partner carefully.

3.2.3  Software  Quality  Attributes

• AVAILABILITY: Since we are hosting our project on the server it will be available all the time.
• CORRECTNESS: The system should generate an appropriate report about different activities of the lab and should keep track of all records.
• MAINTAINABILITY: The system should maintain correct schedules of labs and the documentation of all the lab equipment.
• USABILITY: The system should satisfy the maximum number of users needs.

3.3  Hardware Requirements

• Pentium IV or higher, (PIV-300GHz recommended)
• 256 MB RAM
• 1 Gb hard free drive space

3.4 Software Requirements

• PHP (front end)
• HTML
• JavaScript
• MS Word 97 or later
• Web Browser: Microsoft Internet Explorer, Mozilla, Google Chrome or later
• MySQL Server (back-end)
•  Operating System: Windows XP / Windows7/ Windows Vista

3.5  Waterfall Model

The client-server model of computing is a distributed application structure that partitions tasks or workloads between the providers of a resource or service, called servers, and service requesters called clients. Often clients and servers communicate over a computer network on separate hardware, but both client and server may reside in the same system. A server machine is a host that is running one or more server programs which share their resources with clients.

Client-server software architecture is versatile and flexible in today’s fast-changing IT landscape. It is modular in structure and relies on messaging services for communication between components. They were designed to improve flexibility, usability, scalability, and interoperability. Software flexibility implies the ability for a program to change easily according to different users and different system requirements.

Fig. 4.2 System Architecture of e-Administration of Computer Labs

The admin creates different users.  Admin can generate lab assignment and assigns an instructor to a specific complaint or any problem and checks the report to ensure whether the complaints responded or pending.

Users include Technical staff and Instructors. The user can register complaint pertaining to any lab equipment. The registered complaints will be sent to Admin. The instructor maintains documentation of software, hardware and he also provides the report of equipment conditions to the admin. He performs the tasks assigned by admin. He gets alerted via SMS about the warranty of the product if it is out of date.

Another profile in our project is the HODs profile. Here HODs can see the complaints lodged by his/her department users. HOD can also request for extra labs to the Admin. Based on the available slots, admin defines the slots and send a reply to HOD.

This software also facilitates students in getting syllabus copy, software installation procedures, different lab related software etc.

Chapter 5:

Design and Implementation

5.1  Product  Features

The major features of e-administration of computer lab system are as listed below.

• Unauthorized access is prevented. Because only authorized user can address the complaints and access the resources.
• It helps the administrator to keep track of the detailed information of the labs such as maintaining each user’s profile, the number of available resources etc.
• It helps instructors to dump the software into the server to facilitate students to take the required software.
• It increases the availability of lab resources by their proper maintenance.
• A smooth communication link establishes between different users and user admin.

By achieving the above features, Responsiveness and hence outcomes of each lab increases.

5.2     class diagram design

 Fig. 5.1 Class diagram

 Modules

1. Role of admin
   Creates a user, assigns access rights, authenticates users, checks report, and assigns the task. These functions are used to keep track of various activities in labs.
2. Service complaint
   It includes complaint registration, assigning a task to the instructor, addressing complain. These functions may be used to register a complaint about improper conditions of devices (in the lab) to admin in order to get response/service.
3. Report  generation
   This module generates a service report and reports for the working condition of the equipment in the lab.
4. Software or hardware maintenance
   This module checks warranty of particular software generates alert messages and helps in proper documentation of available software or hardware in labs.
5. Lab Assignment:
   This module defines slots, generates charts, assigns instructors, and would specify alternate instructor to particular labs.

5.3 Use case diagram

a) Interaction between user and administrator
 

Fig. 5.2

Admin Creates a user, checks report and assigns a task to the user. These functions are used to keep track of various activities in labs.

5.4  Sequence diagram

5.5  E-R Diagram  and  Normalization

• E-R Diagram constitutes a technique for representing the logical structure of a database in a pictorial manner. This analysis is then used to organize data as a relation, normalizing relation and finally obtaining a relation database.
• ENTITIES:  Which specify distinct real-world items in an application.
• PROPERTIES/ATTRIBUTES:  Which specify properties of an entity and relationships.
• RELATIONSHIPS: Which connect entities and represent meaningful dependencies between them.

Here the Entities are LAB, EMPLOYEE, COMPLAINT, DEPARTMENT, and  EQUIPMENT.

5.5.2 NORMALIZATION

• The basic objective of normalization is to reduce redundancy which means that information is to be stored only once. Storing information several times leads to wastage of storage space and an increase in the total size of the data stored.
• If a Database is not properly designed it can give rise to modification anomalies. Modification anomalies arise when data is added to, changed or deleted from a database table. Similarly, in traditional databases as well as improperly designed relational databases, data redundancy can be a problem. These can be eliminated by normalizing a database.
• Normalization is the process of breaking down a table into smaller tables. So that each table deals with a single theme. There are three different kinds of modifications of anomalies and formulated the first, second and third normal forms (3NF) is considered sufficient for most practical purposes. It should be considered only after a thorough analysis and complete understanding of its implications. Here We have Normalized up to  3NF.

Chapter 7:

Snapshots 

a) Homepage

This is the home page of e-Administration of computer labs. Through this page, students, tech staff, and nontech staff can access information pertaining to different labs.

Chapter 8:

TESTING AND RESULT

The reason behind testing was to find errors. Every program or software has errors in it, against the common view that there are no errors in it if the program or software is working. Executing the programs with the intention of finding the errors in it is therefore testing; hence a successful test is one which finds errors. Testing is an activity, however, it is restricted to being performed after the development phase is complete, but is carried parallel with all stages of system development, starting with requirement specification.

Test cases were devised with a purpose in mind. A test case is a set of data that a system will process as normal input. The software units developed in the system are modules and routines that are assembled and integrated to perform the required function of the system. Test results once gathered and evaluated, provide a qualitative indication of the software quality and reliability and serve as the basis for design modification if required. In this phase, testing is done at different levels. Actually testing phase of the implementations works accurately and efficiently before live operation commences.

Unit testing was done after the coding phase. The purpose of the unit testing was to locate errors in the current module, independent of the other modules. Some changes in the coding were done during the testing phase. Finally, all the modules were individually tested following bottom to top approach, starting with the smallest and lowest modules and then testing one at a time.

7.2 Black Box Testing

This method of software testing tests the functionality of an application as opposed to its internal structures or working(i.e. white box testing). Specific knowledge of the application’s code/internal structure and programming knowledge, in general, is not required. Test cases are built to specifications and requirements, i.e., what the application is supposed to do. It uses external descriptions of the software, including specifications, requirements, and design to derive test cases. These tests can be functional or non-functional, though usually functional. The test designer selects valid and invalid inputs and determines the correct output. There is no knowledge of the test object’s internal structure.

7.3 White Box Testing

This method of software testing tests internal structures or workings of an application, as opposed to its functionality (i.e. black-box testing). In white-box testing, an internal perspective of the system, as well as programming skills, are required and used to design test cases. The tester chooses inputs to exercise paths through the code and determine the appropriate outputs.

7.4 Integration Testing

Once the unit was over, all the modules were integrated for integration testing. External and internal interfaces are implemented and work as per design, the performance of the module is not degraded.

7.5 Validation Testing

At the culmination of integration testing, the software is said to be completely assembled as a package; interfacing errors have been uncovered and corrected. Then as a final series of software test, validation tests were carried out.

7. 6 Acceptance  Testing

This is the final stage in the testing process before the system is accepted for operational use. Any requirement problem or requirement definition problem revealed from acceptance testing are considered and made error free.