exam 1 review. bureau of labor statistics, u.s. department of labor, occupational outlook handbook,...
TRANSCRIPT
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Exam 1 Review
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Bureau of Labor Statistics, U.S. Department of Labor, Occupational Outlook Handbook, 2014-15 Edition, Computer and Information Systems Managers. Updated 1/8/2014
Jobs in MIS
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Important Skills in MIS
• Analytical Skills• Communication Skills• Decision-Making Skills• Leadership Skills• Organization Skills
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Systems Analysis"Systems analysis is a problem solving technique that decomposes a system into its component pieces for the purpose of the studying how well those component parts work and interact to accomplish their purpose" —Wikipedia
"the process of studying a procedure or business in order to identify its goals and purposes and create systems and procedures that will achieve them in an efficient way“ —Merriam-Webster Dictionary
Core concepts:
• Feasibility study• Scope definition• Requirements gathering• Logical design• User experience (UX)
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Concepts in Systems Analysis
Data Model Database
Why is it important to model data? Why are modeling tools so helpful?
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Concepts in Systems Analysis
Feasibility Study
Requirements Gathering
User Experience Planning
Waterfall Model
Decision AnalysisLogical Design
Requirements Analysis
Problem Analysis
Scope Definition
Phased Approach
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Systems ArchitectureSystems Architecture is a generic discipline to handle objects (existing or to be created) called "systems", in a way that supports reasoning about the structural properties of these objects.
Systems Architecture is a response to the conceptual and practical difficulties of the description and the design of complex systems. – Boris Golden
Once a systems analyst understands the business problem, they architect a solution
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Systems Architecture
A Blueprint for Action
• Planning• Design• Procurement• Build• Installation• Configuration• Testing• Roll out
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SDLC
Plan
Analyze
DesignBuild
Maintain
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InitiateConceptualize
Plan
Analyze
Design
DevelopIntegrate
Test
Implement
Roll Out
Maintain
Dispose
SDLC
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Entity Relationship Diagram (ERD)
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Primary ERD Symbols
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Inventory Item Attributes• ID• Name• Description• Unit of Measure• Weight• Serial #
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Inventory Item
PK Internal IDNameDescriptionUnit of MeasureWeightSerial #
Inventory Item in an ERD
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Complete ERD for a Sales Order
Inventory Item
PK Internal IDNameDescriptionUnit of MeasureWeightSerial #
Customer
PK Customer IDNamePhoneEmailAddressCredit card
Sales Order
PK Transaction IDDate
FK Customer IDFK Sales PersonFK Department
Shipping AddressPayment Method
Order Detail
FK Transaction IDFK Inventory Item
QuantityPriceDiscountTotal
Employee
PK Employee IDNameSSNPay rateAddress
FK Supervisor
JOIN
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Swim Lane DiagramWho does what and when?
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