Lecture Notes 1 Flashcards by Unknown Unknown

is a collection of integrated programs.

software

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Combination of the Application program and Associated Document.

Software

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Software is combination of the _________ program and _________ Document

Application program and Associated Document.

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may be developed for a particular customer or may be developed for a general market.

Software products

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2 types of Software

Generic and Customized

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Software products may be developed for a particular customer or may be developed for a _______market.

general market

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Examples of Generic Software

PC software
CAD Software
software for specific market

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Stand-alone systems that are marketed and sold to any customer who wishes to buy them.

Generic

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Examples of Customized Software

Content management systems (CMS)

Customer relationship management (CRM)
A business process automation system
Automated invoicing
Company-facing / Customer-facing web portals
E-commerce software solutions
Bug tracking software
POS Technology – self-service kiosks
Streaming services
Voice recognition services
Banking services
Remote dashboards
Taxi and private hire providers
Delivery services

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Software does not only encompass computer programs, but it also includes documentation that is necessary to install, use, develop, and maintain these programs.

True

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Software does not only encompass computer programs, but it also includes documentation that is necessary to _______, ___, _____, and ______these programs.

install
use
develop
maintain

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The specification of what the software should
do is owned by the software developer and
decisions on software change are made by the
developer.

Generic - product specification

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It is used to refer to either an
executable program (by both lay
people and computer programs) or
the collection of source codes from
which an executable program is
created (eg. compiler)

Program

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software that is commissioned by a specific customer to meet their own needs.

Customized

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It is a general term used to
describe a collection of a
computer program, procedures,
and documentation that perform
some task on a computer
system.

Software

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The specification of what the software should
do is owned by the customer for the software
and they make decisions on software changes
that are required.

Customized - product specification

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Application Types

Stand Alone
Interactive Transaction Board
Embedded Control System
Batch Processing System
Entertainment System
Systems and Modelling Simulation
Data Collection System
System of Systems

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These are systems that
are composed of a number
of other software systems.

System of Systems

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These are systems that
collect data from their
environment using a set of
sensors and send that
data to other systems for
processing.

Data Collection System

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These are systems that
are developed by
scientists and engineers to
model physical processes
or situations, which include
many, separate, interacting

Systems and Modelling Simulation

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These are systems that
are primarily for personal
use and which are
intended to entertain the
user.

Entertainment System

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These are business
systems that are designed
to process data in large
batches. They process
large numbers of individual
inputs to create
corresponding outputs.

Batch Processing System

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These are software
control systems that
control and manage
hardware devices.

Embedded Control System

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These are application systems
that run on a local computer,
such as a PC. They include all
necessary functionality and do
not need to be connected to a
network.

Examples :
office applications on a PC,
CAD programs photo
manipulation software

Stand Alone

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Applications that execute on a remote computer and are accessed by users from their own PCs or terminals. This include web applications such as e-commerce applications where you can interact with a remote system to buy goods and services.

Interactive Transaction Board

The software should deliver the required functionality and performance to the user and should be maintainable,dependable and acceptable.

True

The software should deliver the required _____and _________to the user and should be maintainable, dependable and acceptable.

functionality and performance to the user

The software should deliver the required functionality and performance to the user and should be __________,_____________and ____________.

maintainable, dependable and acceptable.

Essential Attributes of Good Software

Maintainability Dependability and Security Efficiency Acceptabilty

Software should be written in such a way so that it can evolve to meet the changing needs of customers.

Maintainability

Software must be trustworthy

Dependability and Security

Software should not make wasteful use of system resources such as memory and processor cycles.

Efficiency

Software must be accepted by the users for which it was designed.

Acceptabilty

is the application of scientific and practical knowledge to invent, design, build, maintain, and improve frameworks, processes, etc.

Engineering

the application of well-understood scientific methods to the construction, operation, modification and maintenance of useful devices and systems.

Engineering

the application of well-understood scientific methods to the _________, __________, __________and ______________of useful devices and systems.

construction, operation, modification and maintenance

concerned with the application of well-understood scientific methods to the construction, operation, modification and maintenance of software.

Software Engineering

the application of a systematic, disciplined, quantifiable approach to the development, operation, and maintenance of software.

Software Engineering

an act of applying a collection of techniques, methodologies and tools that help with the production of a high quality software system, ...with a given budget, before a given deadline, while change occurs

Software Engineering

is an engineering branch related to the evolution of software product using systematic well defined scientific principles, techniques, and procedures.

Software Engineering

To capture the customer’s business needs and specify the “_______-” for the system so that programmers can implement it.

blueprints

Effectiveness means getting the desired results/ doing the right thing!

Effectiveness

To capture the customer’s business needs and specify the “blueprints” for the system so that programmers can implement it.

True

role of software engineering

To capture the customer’s business needs and specify the “blueprints” for the system so that programmers can implement it.

* It is usually cheaper, in the long run, to use software engineering methods and techniques for software systems rather than just write the programs as if it was a personal programming project. For most types of system, the majority of costs are the costs of changing the software after it has gone into use.

Importance of Software eNGINERRING

* More and more, individuals and society rely on advanced software systems. We need to be able to produce reliable and trustworthy systems economically and quickly.

Importance of Software eNGINERRING

Divides big problems into various small issues and then start solving each small issue one by one

Reduced Complexity

wHAT ARE THE 6 IMPORTANCE OF SOFTWARE ENGINEERING

Reduced Complexity Minimize Software Cost Handling Big Project Effectiveness Reliable Software Decrease Time

provides systematic means for having regular interaction and obtaining a budget estimates.

Minimize Software Cost

to handle a big project without any problem, the company has to go for software engineering methods.

Handling Big Project

Software engineering involves the processes required to ensure timely completion of a project.

Decrease Time

Software engineering provides models for software quality measurements and evaluations. Examples include models for estimating defects inserted and removed throughout the software lifecycle.

Reliable Software

2 domains that needs to be known

software domain problem domain

Careers in Software Engineering

Systems Analyst * Software Architect * Software Network Specialist * Software Programmer * Software Systems Administrator * Software Database Administrator * Webmaster * Software Security Engineer * Software Tester * Software Project Manager * Software Configuration Manager * Software Quality Manager

Software engineering deals only with the software itself there is a precise statement

software is formal

there is no precise statement of what needs to be programmed software engineering includes discovering a solution for a real-world problem

Real World is informal

- such as IT consultancies, large IT providers, software development, internet providers and training firms; organizations that use IT software, systems and equipment, including retailers, law firms, business intelligence and market research organizations, education providers, the armed forces, the public sector and voluntary sector organizations.

Specialist IT firms

including automotive, navigation, telecommunications, manufacturing and construction companies.

Manufacturing industry

❑Communication ❑Motivation ❑Analytical ❑Project Management Skills ▪ Planning ▪ Risk Assessment ▪ Estimation

Software Engineering Skills

covering energy and water supply, energy extraction and transport.

Public utilities

including global investment banks, financial/banking organizations, security market specialists and the pensions sector.

Financial services

Software Engineering Job Duties

❑ Integrating existing software products and getting incompatible platforms to work together ❑ Creating technical specifications ❑ Writing operational documentation with technical authors ❑ Maintaining systems by monitoring and correcting software defects

The average monthly salary for software engineer jobs in the Ph ranges form __,___ to __,___

44k to 54k

Software Engineering Job Duties

❑ Working closely with other staff, such as: project managers, graphic artists, user experience (UX) designers, other developers, systems analysts and sales and marketing professionals. ❑ Consulting clients and colleagues concerning the maintenance and performance of software systems with a view to writing or modifying current operating systems ❑ Investigating new technologies

Software Engineering Job Duties

❑ Analyzing user requirements ❑ Testing code, refining and rewriting it as necessary ❑ Researching and designing new software programs ❑ Developing existing programs by analyzing and identifying areas for modification

Software Engineering Job Duties

❑Project Management Skills

Planning risk assessment estimation

What are the software engineering skills?

❑Communication ❑Motivation ❑Analytical ❑Project Management Skills ▪ Planning ▪ Risk Assessment ▪ Estimation

A small program can be written without using software engineering principles.

true

But if one wants to develop a large software product, then software engineering principles are indispensable to achieve good quality software cost-effectively.

true

* The economies of all developed nations are dependent on software.

true

Software costs often dominate computer system costs. The costs of software on a PC are often greater than the hardware cost.

true