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Douglas stored in tables in a database.

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Douglas College

Department of Computing Studies and
Information System

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Faculty of Commerce
and Business Administration

Assignment 1

Harmanjot Singh (300288175)

CSIS 2200-070

System Analysis and Design

Instructor : Loveleen Kaur

 

 

 

 

 

 

Components
of an Information System

 System

The system is the
set of related components that generate required results or simply a bunch of
interdependent items that interact regularly to perform a task.

 

Hardware

Information systems hardware is the part of an information
system that can be touched. Computers, keyboards, disk drives and flash drives
are all examples of information systems hardware.

 

Software

The software is
the set of instructions which tells hardware what to do. Unlike hardware, the
software cannot be touched. There
are several categories of software, with the two main categories being
operating-system software, which makes the hardware usable, and application
software, which does something useful.

 

Data

Data can be
defined as the collection of facts. It is usually stored in tables in a
database. Organizations collect
all kinds of data and use it to make decisions. These decisions can then be
analysed as to their effectiveness and the organization can be improved.

 

People

People are individuals
who are either interested (Stakeholders) or involved (employees) in an
information system. People are an essential component to maintain integrity of
an organization.

 

Processes

The last component of information systems is process. A
process is a series of steps undertaken to achieve a desired outcome or goal.

 

 

 

Mission Critical System

A mission critical system is a system that is
essential to the survival of a business or organization. When a mission
critical system fails or is interrupted, business operations are significantly
impacted.
A mission-critical system is also known as
mission essential equipment and mission critical application.

For most IT businesses and organizations,
database systems and process control servers are mission critical systems.

 

Enterprise Computing Systems v/s
Transaction Processing Systems

Enterprise
Computing Systems

Enterprise
computing is a buzzword that refers to business-oriented information technology
that is critical to a company’s operations. Enterprise computing encompasses
all the various types of enterprise software, including database management,
relationship management and so on. Enterprise computing is usually seen as a
collection of big business software solutions to common problems such as resource
management and streamlining processes.

 

Transaction
Processing Systems

A transaction process system (TPS) is an information
processing system for business transactions involving the collection,
modification and retrieval of all transaction data. Characteristics of a TPS
include performance, reliability and consistency. TPS is also known as
transaction processing or real-time processing.

.

 

 

 

System Development Methods

Structured
Analysis

Structured analysis is a software engineering technique that
uses graphical diagrams to develop and portray system specifications that are
easily understood by users. These diagrams describe the steps that need to
occur and the data required to meet the design function of a particular
software. This type of analysis mainly focuses on logical systems and
functions, and aims to convert business requirements into computer programs and
hardware specifications.

 

Object-Oriented Analysis

It is
a popular technical approach for analysing and designing an application,
system, or business by applying object-oriented programming, as well as
using visual modelling throughout the development life cycles to
foster better stakeholder communication and product quality. OOAD in modern
software engineering is best conducted in an iterative and incremental way.
Iteration by iteration, the outputs of OOAD activities, analysis models for OOA
and design models for OOD respectively, will be refined and evolve continuously
driven by key factors like risks and business value.

 

Agile
Methods

It involves
building and adjusting a series of prototypes as per user requirements.
Generally, Spiral models, consisting of various iterations as per user’s
feedback, are used and feedback from prior steps is incorporated in each
subsequent steps. Hence, it provides more flexibility to developers.

 

 

Use of CASE Tools in SDLC

Phase
of Development

Uses

Project Identification and Selection

Diagramming and matrix tools to create and structure
information.

Project Initiation and Planning

Repository and documentation generators to develop project
plans.

Analysis

Diagramming to create process, logic, and data models.

Logical and Physical Design

Form and report generators to prototype
designs; analysis and documentation generators to define specifications.

Implementation

Code generators and analysis, form and report
generators to develop system; documentation generators to develop system and
user documentation.

Maintenance

All tools are used.

 

 

 

SWOT Analysis

SWOT analysis is an acronym for strengths, weaknesses, opportunities,
and threats. It is a structured planning method that evaluates those four
elements of an organization, project or business venture.
A SWOT analysis can be carried out for a company, product, place, industry, or
person. It involves specifying the objectives of the business venture or
project and identifying the internal and external factors that are favourable
and unfavourable to achieve that objective.

 

·       
Strengths: characteristics of the
business or project that give it an advantage over others

·       
Weaknesses: characteristics of the
business that place the business or project at a disadvantage relative to
others

·       
Opportunities: elements in the
environment that the business or project could exploit to its advantage

·       
Threats: elements in the environment
that could cause trouble for the business or project

 

 

 

SWOT Analysis of a School

Strengths

Weaknesses

Opportunities

Threats

Plenty of co-curricular activities.

Enhanced reports of cyber bullying.

Activate a volunteer committee for school related
events.

Lack of internal communication.

Highly trained teachers and staff.

Staff unable to meet with parents.

New programs to help students.

Plumbing complications.

Strong funding and financial backup.

An overabundance of students.

Seek out new investors and funding for programs

Parent complaints.

High Graduation percentage.

Poor internal communication.

Ask students and parents for feedback.

Cultural difference among students.

Great Location

Bad reviews online.

Highlight new program developments.

Competition from other schools.

 

 

 

Fishbone
Diagram

A fishbone diagram, also called a cause
and effect diagram or Ishikawa diagram, is a visualization tool for
categorizing the potential causes of a problem in order to identify its root
causes.

A fishbone diagram is useful in
brainstorming sessions to focus conversation. After the group has brainstormed
all the possible causes for a problem, the facilitator helps the group to rate
the potential causes according to their level of importance and diagram a
hierarchy.

 

An example of Fishbone
Diagram

 

 

 

 

 

 

 

References

·       
David T.
Bourgeois, Ph.D., Information System for Business and Beyond  https://utas.libguides.com/c.php?g=498348&p=3412839

·       
Technopedia   https://www.techopedia.com/definition/23583/mission-critical-system https://www.techopedia.com/definition/27854/enterprise-computing                                        

 https://www.techopedia.com/definition/707/transaction-process-system-tps  https://www.techopedia.com/definition/24637/structured-analysis

·       
Wikipedia  https://en.wikipedia.org/wiki/Object-oriented_analysis_and_design https://en.wikipedia.org/wiki/SWOT_analysis

·       
Course Hero, CISA 4306  https://www.coursehero.com/file/p6fg7ovn/7-Describe-how-CASE-is-used-to-support-each-phase-of-the-SDLC-Project/    

·       
Pestle Analysis http://pestleanalysis.com/how-to-do-swot-analysis-of-your-school/

·       
Slide Share https://www.slideshare.net/siyara12/late-arrival-of-students-banasthai-vidyapithsanchi-saxena    

·       
Tech Target http://whatis.techtarget.com/definition/fishbone-diagram

·       
Power Point Presentations, CSE 2200-070                                                                                                                       

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