Transcript Course Outline

Deploying IT resources
(MIS 533)
MBS in Management Information Systems and
Managerial Accounting Systems
(2006 / 2007)
Fergal Carton
Business Information Systems
Last week
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Practicals: confirm groups and times
– Tues
– Tues
12.00 -13.00
13.00 – 14.00
Group B
Group A
– Wed
– Tues
12.00 -13.00
Group A
13.00 – 14.00 Group B
Visio and Access
Oracle and SQL
Run & Aoife
Brian & Una
Visio and Access
Oracle and SQL
Run & Aoife
Brian & Una
More database examples
Analysis & design = listening
Narrative analysis rules
Data tables (columns and rows)
Relational model of linked tables (improve performance)
Use data to test your design
Applications: trade off design vs. resources
Modelling (eg. architects models of buildings) communicates design
MBS (MIMAS) / MIS533 / Deploying IT Resources
This week
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More system design examples
Building models
Abstract thinking
User interface design rules
Tutors
Visio narratives
RyanAir example
MBS (MIMAS) / MIS533 / Deploying IT Resources
More systems design examples
• Quality Assurance database for cheese samples
(volume)
• Gathering customer order details into one system:
late changes!
• Survey questionnaire processing application:
correlations
• Payroll application, dealing with events
(emergency tax, P30, …)
• Supermarket point of sale system, activating new
products (special offers)
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
. . . The design of your software's interface,
more than anything else, affects how a user
interacts and therefore experiences your
application.
Tandy Trower, 1994
MBS (MIMAS) / MIS533 / Deploying IT Resources
User Interface Design Rules
• Rule 1
– Making the Interface Simple
• Rule 2
– Allowing Users to Be in Control of the Software
MBS (MIMAS) / MIS533 / Deploying IT Resources
Rule 1 : Making it simple
• Making the Interface Simple
– KISS, Keep It Simple and Straightforward
• Are all fields or choices in your application necessary?
– Making the Interface Transparent and Natural
• Don’t clutter the interface
– Labels, static text, check boxes, and option buttons
• Can user look at screen and figure out what to do?
MBS (MIMAS) / MIS533 / Deploying IT Resources
Rule 1 : Making it simple
MBS (MIMAS) / MIS533 / Deploying IT Resources
Rule 2 : Users in control
Some of the ways to put users in control are:
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Making the interface forgiving
Making the interface visual
Providing immediate feedback
Avoiding “Modes”
– A mode is something you must cancel before doing
something else
• Making the interface consistent
MBS (MIMAS) / MIS533 / Deploying IT Resources
Rule 2 : Users in control
MBS (MIMAS) / MIS533 / Deploying IT Resources
Your tutors
Visio – Access
• Run Zhang
• Aoife Mac Sharry
SQL - Oracle
• Una Dunne
• Brian Cummins
MBS (MIMAS) / MIS533 / Deploying IT Resources
Visio narratives
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Grocery Store
ATM
Budget monitoring
RyanAir ticket purchase
Purchase request and payment
UCC travel requisition
Film festival
MBS (MIMAS) / MIS533 / Deploying IT Resources
Visio & database manuals
• Katie Dineen
– Room 3818 ORB
– By end of week
MBS (MIMAS) / MIS533 / Deploying IT Resources
Building a model
• Process Flow
• Data Flow Diagram
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Context diagram
Processes
Data Flow
Data store
External entities
MBS (MIMAS) / MIS533 / Deploying IT Resources
Example : www.RyanAir.com
MBS (MIMAS) / MIS533 / Deploying IT Resources
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
Process flow
Passenger
Flight information enquiry
Reservation
Payment
Ticket issued
MBS (MIMAS) / MIS533 / Deploying IT Resources
Context diagram
Flight reservation
Passengers
Seat availability
Flight Operations
Payment
Reservations
Reservation #
Flight Schedule
On-line
reservation
system
€
Accounts
Seat prices
Timetable
MBS (MIMAS) / MIS533 / Deploying IT Resources
Purchase request and payment
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Departments make spending requests
Budget is checked in the allocated budget file
If budget exceeded, request is rejected
Approved requests are stored and used to create
Purhcase orders (PO’s) for suppliers
• Goods received notes (GRN) are matched with
PO’s to identify any discrepancies
• When supplier invoice is received, 3 way match is
made between PO, GRN and invoice prior to
payment
MBS (MIMAS) / MIS533 / Deploying IT Resources