Deploying IT resources
(MIS 533)
MBS in Management Information Systems and
Managerial Accounting Systems
(2006 / 2007)
Fergal Carton
Business Information Systems
MIS533 Deploying IT resources
• Wednesday 9.00 - 11.00 pm, Boole 6
Lecturer : Fergal Carton
Name:
Phone:
Office:
E-mail:
Web:
Fergal Carton
021-490 3734
Room 2.113, O’Rahilly Building
f.carton@ucc.ie
http://afis.ucc.ie/fcarton/default.htm
MBS (MIMAS) / MIS533 / Deploying IT Resources
Course Objective
This course deals with planning, developing
and managing database environments. It
will introduce students to the ways in which
database management systems (DBMS) can
support the management of
data/information.
MBS (MIMAS) / MIS533 / Deploying IT Resources
Topics covered
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SAD methodologies
Infrastructure planning
Strategic dimension of data management
Requirements analysis and systems design
Process modelling
Data modelling
Enterprise systems
Database development (MS Access and Oracle).
MBS (MIMAS) / MIS533 / Deploying IT Resources
Assessment dates
• A practical exam (20%) which will be the
development of a small database from a business
scenario
– For example, system to support administration of Cork
Film Festival
– Scenario to be distributed by 17th November 2005
– Deadline 8th December 2005
• An MCQ (20%) on the 28th February 2006
MBS (MIMAS) / MIS533 / Deploying IT Resources
Tutorials
MBS (MIMAS) / MIS533 / Deploying IT Resources
Recommended reading
• Database Solutions
– A step by step guide to building databases
• Thomas Connolly & Carolyn Begg
• Publisher : Addison Wesley
• Concepts of Database Management
• Philip Pratt & Joseph Adamski, 4th edition
• Publisher : Thomson Course Technology
MBS (MIMAS) / MIS533 / Deploying IT Resources
Recommended reading
MBS (MIMAS) / MIS533 / Deploying IT Resources
Recommended reading
MBS (MIMAS) / MIS533 / Deploying IT Resources
MIMAS Coffee Session
• 11am Wednesday
• On second floor open area (block B end)
near MBA room
MBS (MIMAS) / MIS533 / Deploying IT Resources
This week
• Systems Analysis and Design
methodologies
MBS (MIMAS) / MIS533 / Deploying IT Resources
Definitons : Analysis & Design
• Analysis : what users need the system to do
• Design : how the system will meet the need
MBS (MIMAS) / MIS533 / Deploying IT Resources
Analysis = listening
MBS (MIMAS) / MIS533 / Deploying IT Resources
Business requirements
MBS (MIMAS) / MIS533 / Deploying IT Resources
Understanding requirements
• Why do we need information systems?
• Reduces possibility of error (eg. same seat not
allocated to 2 passengers)
• Volume of information (eg. all possible flights
and connections)
• Speed of transaction (eg. immediate
confirmation at point of sale)
MBS (MIMAS) / MIS533 / Deploying IT Resources
Background to SA & SD
• Output Oriented
• Process oriented : DFD’s
• Data-Oriented (ERD’s)
MBS (MIMAS) / MIS533 / Deploying IT Resources
What’s the best approach?
• Failings of these methods
– Maintenance
• Lack of flexibility
• Resilience
• Quality
– Re-usability of code
– Backlog (visible and invisible)
MBS (MIMAS) / MIS533 / Deploying IT Resources
What is Systems development
Systems development refers to all activities that
go into producing an IS solution :
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Systems Analysis
Modeling
Design
Implementation
Testing
Maintenance
MBS (MIMAS) / MIS533 / Deploying IT Resources
What is so difficult about
Analysis and Design?
• It involves listening, understanding,
documenting and clarifying
• It takes time, patience and humility
• It works best within a framework
(methodology)
• Design always influenced by experience
MBS (MIMAS) / MIS533 / Deploying IT Resources
Bad systems design
• SNCF : ticketing system
• Bank of Ireland on-line (what direct debits are on
my account?)
• ERP systems: getting reports out
• Your own examples?
MBS (MIMAS) / MIS533 / Deploying IT Resources
Understanding requirements ...
• Analysing problems
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Functional decomposition
Process specification
Flow Charts
Use case
Activity diagrams
• Designing solutions
– Data flow diagrams
– Entity relationship model
MBS (MIMAS) / MIS533 / Deploying IT Resources
Building a model
• Functional decomposition
Sales
Finance
• Data Flow Diagram
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Context diagram
Processes
Data Flow
Data store
External entities
MBS (MIMAS) / MIS533 / Deploying IT Resources
Shipping
Planning
Example : www.RyanAir.com
MBS (MIMAS) / MIS533 / Deploying IT Resources
Functional decomposition
Passenger
Flight information enquiry
Reservation
Payment
Ticket issued
MBS (MIMAS) / MIS533 / Deploying IT Resources
Context diagram
Global
Airline seat
booking
On-line
reservation
system
Internet
MBS (MIMAS) / MIS533 / Deploying IT Resources
Users
Example : www.RyanAir.com
• Input :
– Flight details (eg. SNN-BVA, 8 Oct, 10.35)
– Credit card details (eg. VISA no, Expiry date)
• Process :
– Confirms price (eg. EUR 79)
– Makes reservation & processes payment
• Output :
– Reservation reference (eg.CGHKCA)
MBS (MIMAS) / MIS533 / Deploying IT Resources
Data Flow Diagram
Book
now
Flight
details
Lists
options
Outward
Inward
Confirm
price
Credit
card
Makes
Reservation
& payment
Stores
Flight
Reservation
details
MBS (MIMAS) / MIS533 / Deploying IT Resources