Postgraduate Taught Student Handbook. 2011 - 2012

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Information School. Postgraduate Taught Student Handbook. 2011 - 2012
  • module choices
  • guidance of a general nature to students with particular support needs
  • aspects of postgraduate assessment
  • postgraduate certificates
  • staff
  • section
  • students
Publié le : mercredi 28 mars 2012
Lecture(s) : 22
Source : cs.uwaterloo.ca
Nombre de pages : 59
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Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
1Teechnnologgy in Acttiion
Chaptter 10
Behhind thhe Sceenes: BBuildiinng Appplicattiions
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
2Chaapterr Toppics
• System development life cycle
• Life cycle of a program
• Problem statement
•• Algoorithms
• Moving from algorithm to code
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
3Chaapter Topics (connt.)
• Moving from code to machine language
• Testing programs
• Completing a program
•• Selleectingg the rriight prrogrammmingg languuage
• Most popular programming languages
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
4Reeasoons ffor
Sofftwarre Prrograamming
• Some types of tasks are candidates for
automation as a software program
– Routine
– Reepetitiivve
– Work with electronic data
– Follow a series of clear steps
• A new software program can be created
when existing programs do not suffice
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
5Infformationn Systemms
• System
– A collection of pieces working together to
achieve a common goal
•• An iinformation systeemm inclludes
– Data
– People
– Procedures
– Hardware
– Software
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
6Systtem Devveloppmennt Liiffe Cyycle
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
7
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice HallPProbblem and Oppportuunityy
Ideentiffiicatiioon
• The existing system is evaluated
– Problems are defined
– New proposals are reviewed
– Deecisionns are mmade tto procceed wiith the
projects
– The process is documented
– Relevant problems and opportunities are
defined
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
8
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice HallAAnallysis
• A program specification (goals and
objectives of the project) is developed
• A feasibility assessment is performed
•• Useer requuiremeents arre deffined
• Analysts recommend a plan of action
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall
9
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice HallDessign
• A detailed plan for programmers is developed
• Flowcharts and data-flow diagrams are used for
the current and proposed system
Data-flow diagram
10
Copyright © 2012 Pearson Education, Inc. Publishing as Prentice Hall

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