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Objectives
 Introduce software engineering and explain its
importance
 Develop a broad understanding of the software
engineering domain
2
Questions
 What makes software so important?
 A software product’s impacts in our life
Behind the Scene
3
General Observations
 Software is used by virtually everyone in society either
directly or indirectly.
 The economies of the world are depend on software.
4
Software & Software
engineering Definition
 Software series of instructions that directs a
computer to perform specific tasks or operations.
 Software engineering is the study and an
application of engineering to the design,
development, implementation and maintenance of
software in a systematic method.
5
Software Types
 Generic - developed to be sold to a range of different
customers.
>>PC software such as Word or Excel
 Custom - developed for a single customer according
to their specification.
 Cooperative Solutions
>>Starting with generic system and customizing it to
the needs of a particular customer.
6
7
 Cooperative Solutions:
 Custom :
 Generic
Examples
Software Process Model
 Process Model : A simplified representation of a
software process, presented from a specific
perspective.
 Examples of process perspectives are:
 Workflow - sequence of activities
 Data-flow - information flow
 Role/action - who does what
8
connect apps and actions together to automate things
you do on your device. To build a workflow, just drag
and drop together a series of actions.
9Software Process Model
Workflow perspective(simple one) :
Software Development
Process
 A set of activities whose goal is the development or
evolution of software.
 Generic activities in all software processes are:
 Specification - what the system should do and its
development constraints.
 Development - production of the software system.
 Validation - checking that the software is what the
customer wants.
 Evolution - changing the software in responses to
changing demands.
10
Attributes of a Good
Software
 Maintainability
 Software must evolve to meet changing
needs;
 Dependability
 Software must be trustworthy; e.g.
reliability, security, safety.
 Efficiency
 Software should not make wasteful use of
system resources;
11
Attributes of a Good
Software
12
Cost
Performance
Source:
 http://www.cs.washington.edu/444/
 National Science Foundation
www.nsf.gov
13
THE END

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Software engineering-Light presentation

  • 1.
  • 2. Objectives  Introduce software engineering and explain its importance  Develop a broad understanding of the software engineering domain 2
  • 3. Questions  What makes software so important?  A software product’s impacts in our life Behind the Scene 3
  • 4. General Observations  Software is used by virtually everyone in society either directly or indirectly.  The economies of the world are depend on software. 4
  • 5. Software & Software engineering Definition  Software series of instructions that directs a computer to perform specific tasks or operations.  Software engineering is the study and an application of engineering to the design, development, implementation and maintenance of software in a systematic method. 5
  • 6. Software Types  Generic - developed to be sold to a range of different customers. >>PC software such as Word or Excel  Custom - developed for a single customer according to their specification.  Cooperative Solutions >>Starting with generic system and customizing it to the needs of a particular customer. 6
  • 7. 7  Cooperative Solutions:  Custom :  Generic Examples
  • 8. Software Process Model  Process Model : A simplified representation of a software process, presented from a specific perspective.  Examples of process perspectives are:  Workflow - sequence of activities  Data-flow - information flow  Role/action - who does what 8
  • 9. connect apps and actions together to automate things you do on your device. To build a workflow, just drag and drop together a series of actions. 9Software Process Model Workflow perspective(simple one) :
  • 10. Software Development Process  A set of activities whose goal is the development or evolution of software.  Generic activities in all software processes are:  Specification - what the system should do and its development constraints.  Development - production of the software system.  Validation - checking that the software is what the customer wants.  Evolution - changing the software in responses to changing demands. 10
  • 11. Attributes of a Good Software  Maintainability  Software must evolve to meet changing needs;  Dependability  Software must be trustworthy; e.g. reliability, security, safety.  Efficiency  Software should not make wasteful use of system resources; 11
  • 12. Attributes of a Good Software 12 Cost Performance