Chapter 12 - Discovering Computers 2010 Living in a Digital...

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Unformatted text preview: Discovering Computers 2010 Living in a Digital World Objectives Overview {CA3B206F-A023-475A-94DC-1DC17C52DBB3} {39F062D4-A611-499C-B7DE-824A881D98E1} {F9022B54-68C2-4973-9A00-460029290542} {03F2B305-9397-40C2-9EC0-5232F1C6CCC2} {6976A762-9A42-4729-B45A-75EBA584360E} {20AA31B8-F707-4201-BAA2-DCD6890D813E} activities performedIdentifyprocess phase for system development fine system developmentinanalysis modelingdevelopment phases ie the various tools used and list thefeasibility assessment, documentation, mportance of project management, system in the the guidelines Explain the activities performed in • See Discovering Computers 2010: 22 Objectives Overview {63451AF9-80D2-44DF-A6B0-979B5694464D} {C23E5400-4B14-47B1-9B05-593F06D146F6} {17FBA9AA-420A-4DF5-93DD-F1D2CDFC1164} {E3AD54FB-EF33-4E59-A4C0-160B8977AF92} {81B17E91-2952-43EE-AD41-27E30E6636FB} scribeactivity is part of system development implementation performed in rams Discuss the purpose ofperformedmodeling the activities phase supp Discuss the tools used theobject in the the various activities in activities performed in the operation, Explain • See Discovering Computers 2010: 33 What is System Development? people, and procedures that work together to produce quality information {268971F0-0861-4414-8BBA-4F66AD27A9AF} t is a set of activities used to build an information system {95E20AFE-9BF1-4B36-B740-D7781CF1894D} {60CE8C95-5A61-4607-BC37-02BAD3EB9E2D} uped into phases, and ystem is a set ystem developmentinteract to achieve A s is called the s of components that life cycle (SDLC • Page Discovering Computers 2010: 44 What is System Development? • Page Discovering Computers 2010: 55 What is System Development? {EAD38B6A-C6FA-4FEA-A327-A25CCDDA1E42} {1B053537-5E6A-47CC-8D80-24D140C8E4A7} Define standards • Page Syste {2DCAD857-92F3-4FAB-8AEE-025EDC3CC2C0} Involve users activities or tasks into phase Group Discovering Computers 2010: 66 What is System Development? • • System Page Discovering Computers 2010: 77 What is System Development? {BB9E32B8-75E0-439D-BC37-276803254074} {52DD0899-5CF8-4B9A-BDBD-EDA2B4A4200B} {AC08CD3C-9E82-4F36-9562-4AE0A8C1BE0E} {64673872-6936-49CE-8D68-C35976D4B813} {A8FF6ED6-8B3A-42CB-91ED-93C58B906C85} {FEFBFFB9-2878-4216-A231-0D9A3A8D8030} Order of activities estimates for each activitytake place at the same activ Project scope Activities that can Time Required activitiesestimates for each time Cost • • Page Discovering Computers 2010: 88 What is System Development? A popular tool used to plan and schedule the time relationships among project activities is a Gantt chart • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click Gantt Charts below Chapter 12 Page Discovering Computers 2010: 99 What is System Development? A PERT chart also can be used for planning and scheduling time • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click PERT Charts below Chapter 12 Page Discovering Computers 2010: 10 10 What is System Development? {5633630A-4C92-428F-AE01-124F03020233} {60BDD6B7-BE53-4E0E-BD9C-62BAAE91D302} {63211692-4078-40D5-ACCB-7B9773C2241D} {E96E33CF-A77F-4E5A-9AB4-2D0C495433D0} perational feasibility Economic feasibility Technical feasibility Schedule feasibility • • Page Discovering Computers 2010: 11 11 What is System Development? • • Page Discovering Computers 2010: 12 12 What is System Development? {EFD5B595-FA62-4BAB-8E06-556C8725E13A} {768D9E7A-1FB6-4313-8AF0-9B2A5406CEBB} {366C9F3F-3506-4A50-A575-7A2BDCECB293} {F9F9E663-238D-4BA5-8199-FA6BF27B737F} {C0D77563-DBF7-4354-85FA-F1BCDA997A24} {D0A1F8F2-FFAC-4B5B-A16A-6BD46DBD059C} Observe Survey Sessions JAD Research Review documentation Interview • • Durin Page Discovering Computers 2010: 13 13 Who Initiates a System Development Project? {B3B1F2E5-30D4-4715-B9E4-8867D690589F} {0E8D9295-8C93-4EA2-8814-A49124155101} {C3849D35-21E0-4052-AB84-BE922F2AA3C6} {F3D57AAA-741B-4F48-97B4-52C795BA477A} {69123901-8393-4C91-A81E-A415CF280752} fied information systemto improvechange A user may request achange req nization’s control want using a request for system services ora atechnology rganizations may might require Management software, or other project mo a hardware, might mandate new or • Page Discovering Computers 2010: 14 14 Who Initiates a System Development Project? • Page Discovering Computers 2010: 15 15 Planning Phase {4C302183-22E8-40B1-9BAC-BF7F2BEDCB8B} {FF8781BB-BCA5-4896-8A87-F3CC25230256} {D3328B67-C013-4864-B902-B20CF4E9C6B9} {4561C36B-2766-484E-9376-EAAEEC1E0A0C} m a project developmentReview and approve the project requests requests Allocate resources team Prioritize the project • Page The Discovering Computers 2010: 16 16 Analysis Phase actants,submittedproblem or improvement rw nature of the the request mend a solution requirements who needs, and {E2AA96E6-675A-4400-913F-0E91D0D71D8F} {EE039F77-EA57-43FC-A2C2-70191E83178B} Perform detailed analysisConduct a preliminary investigation {D3ABF58D-BDBD-4EF1-90BE-09111490201B} Study how the current system works • Page The Discovering Computers 2010: 17 17 Analysis Phase • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click Feasibility Study below Chapter 12 Page Discovering Computers 2010: 18 18 Analysis Phase {21446AA6-DD7F-4D5D-B7CB-132C70A57E53} {7A8D7AE3-8EB9-4BFB-B341-7D1AF71254F2} {D86D1D71-B92C-422E-8188-31FDE9222B20} Project dictionary Entity-relationship diagrams flow diagrams Data • • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click Process Modeling below Chapter 12 Page Discovering Computers 2010: 19 19 Analysis Phase • Page An Discovering Computers 2010: 20 20 Analysis Phase • Page A Discovering Computers 2010: 21 21 Analysis Phase • Page The Discovering Computers 2010: 22 22 Analysis Phase {A906B319-CCB7-4FDE-83D6-D6F344E86549} {2248B5AB-F495-453D-97FC-32FD3F7FB8F1} a variety of conditions and the actions that correspond toactions, but it sho A decision tree also shows conditions and each condition • Page Discovering Computers 2010: 23 23 Analysis Phase • • Page Decis Discovering Computers 2010: 24 24 Analysis Phase • Page The Discovering Computers 2010: 25 25 Analysis Phase {5B5E0539-1436-4543-9466-FD0640390ED9} Use case diagram • • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click UML below Chapter 12 Page {CE1D6C08-2CAC-46EE-9F5C-3C3DAAC1C876} Class diagram Discovering Computers 2010: 26 26 Analysis Phase • • Page Discovering Computers 2010: 27 27 Analysis Phase • Page A Discovering Computers 2010: 28 28 Analysis Phase {C2F1AE72-4C96-4FE8-86A2-DB6032EE0EF4} {DD005F41-511E-4CAB-A869-3227FC8F09E1} Packaged softwareCustom software • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click Vertical Market Software below Chapter 12 Page The Discovering Computers 2010: {D7475E4E-C350-4E33-B7ED-D64E5838C0A4} Outsourcing 29 29 Design Phase {1F37A375-1D87-4D09-8DD9-9A9D1145EE99} {71082AAC-8883-4A8B-998B-4B7C06DD1DB3} Acquire hardware and software details of the new or modified inform Develop all of the • Page The Discovering Computers 2010: 30 30 Design Phase to determine the best proposal {240168ED-D87A-4119-A942-64B91E6194BD} {9795160F-102C-41F3-BE8E-1F9087677B18} {2BC3DF6C-1125-46F1-A943-DB892343475C} {37D395D6-C8FC-4BF9-94B9-2CB6CADC8969} fy technical specifications Solicit vendor proposals Make a decision evaluate vendor pro Test and {079D3F74-3EB8-46D9-8812-741266D63A73} {F5EDA5FA-DD5A-4EC5-AF1F-CAB193EBE848} {1A9487ED-2BFD-4E65-8D1C-D2653BA2BB74} RFQ, RFP, or Systemseanalyst makes vendors or VARs to steering commit ch techniques suchis sent to potential recommendation RFI as -zines • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click E-Zines below Chapter 12 Page To Discovering Computers 2010: 31 31 Design Phase {2AD5D58A-D8DC-4B54-A3C8-28F69FEE0818} {549634D9-E604-42B5-AFFC-3033C9CB1C10} Input and output design • Page The {A7D76D52-1A11-47DE-B1A1-99FC1FA53438} Program design Discovering Computers 2010: Database design 32 32 Design Phase Mockup • Page Syste Layout chart Discovering Computers 2010: 33 33 Design Phase • Page A Discovering Computers 2010: 34 34 Design Phase {078CF5F1-B172-4358-958C-A161748716DF} {82AD381A-014D-4EA0-9917-CA1788FF9809} {7622706C-C558-41F8-A899-2DF2C4DC30EC} {FDA484A6-0718-4A17-8353-2B5E2ABAE11D} {DF24B744-2DF7-4563-A656-89F285EF3AA6} {30B065E5-E38C-4D1E-9BEA-9EB570562524} Project repositoryCode generatorQuality assurance Housekeeping Graphics Prototyping • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click CASE Tools below Chapter 12 Page Com Discovering Computers 2010: 35 35 Design Phase • Page Discovering Computers 2010: 36 36 Design Phase • Page Many Discovering Computers 2010: 37 37 Implementation Phase {3AA29F25-7C9B-469C-BE86-88261E1ADC8E} {E6287DB4-DECE-4CD3-AEDB-097B1A366CEC} {28CB7A06-9339-47CE-8667-09E1754AF5FF} vert to the new system test the new system users Install and Train • Page The Discovering Computers 2010: {1FDF80D0-5A27-4C81-8E20-89EB0331160D} Develop programs 38 38 Implementation Phase Design the solution Validate the design {18983EAB-4E5D-4AE5-8D75-2F09D2E010CF} 5 {171A0D9A-981A-4E6B-8F11-42CEFAE4A237} {9BE00C28-D4BB-47D5-A8CD-B0623E0D6EAE} 1 {DA5F1C3A-F0F7-484C-8AF4-585FFEE030BD} {0FF5B2B2-CEBA-4F04-A0AC-7D77EBF1304C} 6 {84FDF4C5-C659-44A3-82DA-40183BCBF93D} {0B272C7D-2AC6-4CA5-BD30-1EF4C6D96D50} 4 {3920C5C2-EA6A-434E-8BB0-4DC3337337F9} 3 {B21230EB-317B-43EF-8417-7001F1C0D42B} 2 {F752A646-E88A-4A93-B10F-56A8ED7D3D2E} Test the solution Analyze the requirements the design Document the solution Implement • Page The Discovering Computers 2010: 39 39 Implementation Phase programwithwork together properly applicationobject works by itself works or other applications {820D5BE2-1340-4471-A3F1-237D092F9792} Acceptance test {14A773B0-F74C-435A-AD79-61D2FA68BD53} {E5C4ED4F-0A7F-4F49-A236-B6C0DC5D98E4} Unit test Integration test {B606BF8B-8C2D-4438-BA41-F832E371DE73} Systems test {126E1475-2654-4DDD-8F2E-6D471B2321DC} em to ensure that it works with actual data • Page Vario Discovering Computers 2010: 40 40 Implementation Phase • • Page Discovering Computers 2010: 41 41 Implementation Phase • Page One Discovering Computers 2010: 42 42 Operation, Support, and Security Phase {179FF9E4-DE8F-4793-B07B-7C350518B328} {317B75D9-BE73-4CA5-ACC5-01E83936692F} {CB2BA4A0-7739-4497-86BB-3E58EC704A12} erform maintenance activities system performance Monitor Assess system security • Click to view Web Link, click Chapter 12, Click Web Link from left navigation, then click Chief Security Officer below Chapter 12 Page The Discovering Computers 2010: 43 43 Operation, Support, and Security Phase {F8001ADA-7344-40B8-90FB-F9A3F9AB5A3B} {47D1449D-0277-4962-95AE-9F0581978FC5} {D877806D-1D2A-4C90-B1F6-029E9A80A743} l information For each risk, identify the safeguards that exist to detect, prev Identify allassets of an organizationcause an information asset loss security risks that may • Page A Discovering Computers 2010: 44 44 Video: Create a Hidden Operating System CLICK TO START Discovering Computers 2010: 45 45 Summary {37AF3C79-84C6-42BF-A010-AE7763A35739} {F368B190-B6E1-4175-B659-B1508311B29F} {E1C4FCAF-B28D-4A83-8D66-347416AE9334} {4BE61A80-F514-4E80-B78E-1A2FBAB1DD95} occur during system development tivities performed during each system development phasedevelopment pha Guidelines for systemSystem development • Page Discovering Computers 2010: 46 46 Discovering Computers 2010 Living in a Digital World Chapter 12 Complete ...
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