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CSCI375Intro to Systems Analysis
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Today’s planCourse administriviaCourse overview
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AdministriviaLecture: Instructor: Sarah Carruthers ([email protected])Office Hours: Course homepage: http://csci.viu.ca/~carruths/Courses/CSCI375/index.htmlSyllabus: http://csci.viu.ca/~carruths/Courses/CSCI375/CSCI3752020Outline.html
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AdministriviaMark breakdown:
◦ Team Project: 50% (must pass to pass the course)◦ Final Exam: 50% (must pass to pass the course)
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Team ProjectPurpose:◦ to gain first hand knowledge of the challenges of systems analysis◦ to gain experience working in a team on a project◦ to learn to properly document a project
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Deliverable Due Date (midnight)
Team Formation Jan 13/15 Time in first lab to form teams of 4Will include a breakdown of skills, roles, and responsibilities
Project Plan Jan 20/22 Presented in lab
Requirements Feb 10/12 Presented in lab
Analysis Model March 2/4 Presented in lab
Design Models March 9/11 Presented in lab
Prototype March 30/April 1 Demo’d in lab
Final Project April 6/8 Presentation in class
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Team ProjectAll students must fully participate in a team project◦ attend all labs◦ attend all team meetings◦ participate in all demonstrations◦ participate in all presentations◦ complete a fair share of:
◦ planning◦ analysis◦ design◦ development◦ documentation
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Team ProjectFor full marks, all deliverables must be ◦ received on time◦ submitted exactly as requested
Late submissions:◦ at most one day late: -25%◦ more than one day late: mark of 0
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Team ProjectAll students will be assigned to a teamDocumentation:◦ Each team member is responsible for documenting their contributions
◦ Weekly timesheets◦ Weekly contributions details
Presentations:◦ mandatory attendance◦ exceptions for medical or family emergency (documented)◦ failure to give a presentation will result in a 0
◦ presentation must still be given at a later date, or a failing grade for the project will be given
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Team ProjectSuitable projects◦ must be beneficial to other csci students at VIU (game, application,
entertainment...)◦ must be stored, developed, compiled, and run entirely on otter◦ depth must be appropriate for 50% of total course mark for 4 upper level
students (at instructor’s discretion)◦ must reflect the feedback provided during the lifetime of the project
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Team ProjectDocumentation◦ Time sheets (individual)◦ Contributions (individual)◦ Meeting minutes (group)
Submission◦ using git (to be set up during Lab 1)◦ all teams must commit and push their team repo every Monday (before lab)◦ all individuals must commit and push their individual files every Monday
(before lab)◦ Individual marks will be largely based on these pushes
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Course TopicsMotivation (today and next class)...
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MotivationWe live in a world of ubiquitous computingDespite the fact that we are familiar with using◦ mobile tech◦ computers◦ internet◦ AI
Most of us are unfamiliar with building information systems
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Computer Applications (apps)
Software
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Computer Applications (apps)
Definition: a program that runs on a computer to carry out specific functions or a set of related functions
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Information systems
Information system
Data
People
Software
Hardware
NetworksBusiness
Processes
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Information systems
Definition: a set of interrelated components that collect, process, store, and provide as output the information needed to complete business tasks
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ExerciseAs a student you use VIU’s student support system to:◦ register for classes◦ get a timetable
You access it using:◦ browser◦ app
It is used by:◦ students◦ staff
Describe this as an information system:◦ What are the components?◦ What problem(s) does it solve?
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Systems Analysis and DesignIn this class we will investigate how
an information system is created
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Systems Analysis and Design
Perceived need Actual usable system
Systems Analysis
Systems Design+
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Systems Analysis
Definition: Systems Analysis is the set of activities that we undergo to understand and specify what a system should be able to do or accomplish
Understand Specify
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Systems AnalysisA customer management system should:◦ track customers◦ register products◦ monitor warranties◦ track service levels◦ ...
Systems analysis is much more than this list!
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Systems Design
Definition: Systems Design is the set of activities that we undergo to describe in detail how the Information System will actually be implemented
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Systems Analysis and Design
What is needed for the system to solve this
problem
How the system will operate to solve this
problem
Systems Analysis Systems Design+
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Building a Building System Building a system is a lot like building a building
Land owner Builder
Architect
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The Development Process1. Understand the need2. Capture the vision3. Define a solution
4. Communicate the vision and the solution5. Build the solution or direct others to build it6. Confirm that the solution meets the need7. Launch the solution
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Building an IS
Definition: A project is a planned undertaking with a start and finish, that produces an end result
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ProjectShould include all the activities needed to design, develop, and launch a new system:◦ Identify◦ plan◦ organize◦ monitor
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System Development Life Cycle (SDLC)
Definition: A framework that identifies all the activities needed to research, build, deploy, and maintain an Information System
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System Development Life Cycle (SDLC)Should include all activities needed for:◦ planning◦ systems analysis◦ systems design◦ programming◦ testing◦ user training◦ deploying◦ maintaining...
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System Development Life Cycles (SDLC)Core Processes
Identify the problem and obtain approval
Plan and monitor the project
Discover and understand details
Design the system components
Build, test, and integrate system components
Complete system tests and deploy the solution
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Systems Development Methodology
Definition: A systems development methodology (or process) is a set of comprehensive guidelines for carrying out all the activities of the Core Processes
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Agile DevelopmentMost current Systems Development Methodologies are based on Agile Development◦ based on the idea that no one has a complete understanding of the system,
not:◦ developers◦ users◦ designers◦ clients...
◦ Plan needs to be able to deal with unanticipated challenges◦ be flexible◦ be agile
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Iterative DevelopmentSystem is “grown” in an organic wayCore components developed firstAdditional components added
Consists of the six core development processes◦ repeated over and over until system is fully functional
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Iterative DevelopmentSix Core Processes
1. Identify problem and obtain approval2. Plan and monitor project3. Discover and understand details4. Design system components5. Build, test, integrate system components6. Complete system tests and deploy solution
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Iterative Developmentthe amount of effort expended at each iteration for each process depends on:◦ project◦ approach◦ results of previous iteration
First iteration, more effort will go into processes 1-3Late iterations, more effort will go into later processes
Each iteration should be completa in 2-4 weeks
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Iterative developmentWhat are the benefits of iterative development?
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Feasibility, Risk, and Cost-benefit AnalysisFor Project:◦ Feasibility◦ Risk◦ Cost-benefit
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In your teamsScan: https://en.wikipedia.org/wiki/Feasibility_studyFor each category, summarize the feasibility of your project:◦ Technical Feasibility◦ Legal Feasibility◦ Operational Feasibility◦ Time Feasibility◦ Resource and Time Feasibility
Present to class
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In your teamsIdentify each of the following for your project◦ Costs◦ Benefits
Present to class
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In your teamsIdentify the risks of your project:◦ What could lead to your project’s failure?
◦ Identify each risk◦ Identify how it could be avoided, managed, or mitigated
Present to class
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MotivationRMO’s Tradeshow System