This document discusses functional and non-functional requirements. Functional requirements describe the behavior of a system and support user goals, while non-functional requirements describe how the system works and make it more usable. Functional requirements should include data descriptions, screen operations, workflows, and access controls. Non-functional requirements should cover usability, reliability, performance, and supportability. Non-functional requirements are further classified into categories like process, delivery, implementation, and external constraints.
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This Presentation contains all the topics in design concept of software engineering. This is much more helpful in designing new product. You have to consider some of the design concepts that are given in the ppt
Illustrate general good design principles in software engineering such as low coupling, high cohesion, modularity, abstraction, separation of interface and implementation. With examples.
Software engineering 18 user interface designVaibhav Khanna
System users often judge a system by its
interface rather than its functionality
λ A poorly designed interface can cause a user to
make catastrophic errors
λ Poor user interface design is the reason why so
many software systems are never used
Unified Modeling Language (UML) is a modeling language, used for design. Designed based on OMG Standard, Object this helps to express and design documents, software. This is particularly useful for OO design. Here is a brief tutorial that talks about UML usage.
Software Requirement Specification is a most important topic asked in exams and for presentations in B.Tech comp. engg. This presentation contains all the important topic and deep knowledge of SRS.It includes definition, scope, role, how to write srs, template and template description. It tells how to build SRS and also includes examples for ease.
This Presentation contains all the topics in design concept of software engineering. This is much more helpful in designing new product. You have to consider some of the design concepts that are given in the ppt
Illustrate general good design principles in software engineering such as low coupling, high cohesion, modularity, abstraction, separation of interface and implementation. With examples.
Software engineering 18 user interface designVaibhav Khanna
System users often judge a system by its
interface rather than its functionality
λ A poorly designed interface can cause a user to
make catastrophic errors
λ Poor user interface design is the reason why so
many software systems are never used
Unified Modeling Language (UML) is a modeling language, used for design. Designed based on OMG Standard, Object this helps to express and design documents, software. This is particularly useful for OO design. Here is a brief tutorial that talks about UML usage.
Functional Requirements Document
Template
Version
Description of Change
Author
Date
CONTENTS
41
INTRODUCTION
1.1
Purpose
4
1.2
Scope
4
1.3
Background
4
1.4
References
4
1.5
Assumptions and Constraints
4
1.6
Document Overview
5
2
METHODOLOGY
5
3
FUNCTIONAL REQUIREMENTS
5
4.1
Context
5
4.2
User Requirements
5
4.3
Data Flow Diagrams
6
4.4
Logical Data Model/Data Dictionary
6
4.5
Functional Requirements
6
5
OTHER REQUIREMENTS
6
5.1
Interface Requirements
6
5.2
Data Conversion Requirements
7
5.3
Hardware/Software Requirements
7
5.4
Operational Requirements
7
APPENDIX A - GLOSSARY
11
1 INTRODUCTION
[Provide an overview of the system and some additional information to place the system in context.]
1.1 Purpose
[Provide an overall description of the FRD, its purpose. Reference the system name and identifying information about the system to be implemented.]
1.2 Scope
[Discuss the scope of the document and how it accomplishes its purpose.]
1.3 Background
[Describe the organization and its overall responsibilities. Describe who is producing the document and why.]
1.4 References
[List references and controlling documents, including: meeting summaries, white papers, other deliverables, etc.]
1.5 Assumptions and Constraints
[Provide a list of contractual or task level assumptions and/or constraints that are preconditions to preparation of the FRD. Assumptions are future situations beyond the control of the project, whose outcomes influence the success of a project.]
1.5.1 Assumptions
Examples of assumptions include: availability of a technical platform, legal changes and policy decisions.
1.5.2 Constraints
Constraints are boundary conditions on how the system must be designed and constructed. Examples include: legal requirements, technical standards, strategic decisions.
· Constraints exist because of real business conditions. For example, a delivery date is a constraint only if there are real business consequences that will happen as a result of not meeting the date. If failing to have the subject application operational by the specified date places the organization in legal default, the date is a constraint.
· Preferences are arbitrary. For example, a date chosen arbitrarily is a preference. Preferences, if included in the FRD, should be noted as such.]
1.6 Document Overview
[Provide a description of the document organization.]
2 METHODOLOGY
[Describe the overall approach used in the determination of the FRD contents. Describe the modeling method(s) so non-technical readers can understand what they are conveying.]
3 FUNCTIONAL REQUIREMENTS
4.1 Context
[Provide a context diagram of the system, with explanations as applicable. The context of a system refers to the connections and relationships between the system and its environment.]Exhibit 2 - Generic Context Diagram
Data 6
Data 1
Data 3
Data 4
Data 7
Data 2
Data 8
System/
Application
Name
Interface
Name 2
Interface
Name 4
Interface
Name 1
(User)
Interface
Name 3
Da.
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3. Functional Requirement
Describe the behavior of system
Support users goals, tasks or activities
Detailed and specified in the system design
It contain unique name and number
Helps to reader to understand why requirement is needed.
4. Functional Requirement Should include
Description of data to be entered
Description of operation performed by each screen
Description of work flows performed by the system
Who can enter the data into a system
5. Specification of Functional Requirement
Purpose of the Document
Scope
Business Process
Data and Integration
Performance
6. Non Functional Requirement
How system works?
It make system more tangible
Related the usability of system
Judge the operation of system, rather than specific behaviors
Process requirements
Requirements which are a consequence of organisational policies and procedures e.g. process standards used, implementation requirements, etc.
Product requirements
Requirements which specify that the delivered product must behave in a particular way e.g. execution speed, reliability, etc.
External requirements
Requirements which arise from factors which are external to the system and its development process e.g. interoperability requirements, legislative requirements, etc.
