Deploying IT resources (MIS 533) MBS in Management Information Systems and Managerial Accounting Systems (2006 / 2007) Fergal Carton Business Information

Deploying IT resources(MIS 533)

MBS in Management Information Systems and Managerial Accounting Systems

(2006 / 2007)Fergal Carton

Business Information Systems

MBS (MIMAS) / MIS533 / Deploying IT Resources

MIS533 Deploying IT resources

• Wednesday 9.00 - 11.00 pm, Boole 6 Lecturer : Fergal Carton

Name: Fergal CartonPhone: 021-490 3734Office: Room 2.113, O’Rahilly BuildingE-mail: [email protected]: http://afis.ucc.ie/fcarton/default.htm


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.


Topics covered

• 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).


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


Tutorials


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


Recommended reading


Recommended reading


MIMAS Coffee Session

• 11am Wednesday

• On second floor open area (block B end) near MBA room


This week

• Systems Analysis and Design methodologies


Definitons : Analysis & Design

• Analysis : what users need the system to do

• Design : how the system will meet the need


Analysis = listening


Business requirements


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)


Background to SA & SD

• Output Oriented

• Process oriented : DFD’s

• Data-Oriented (ERD’s)


What’s the best approach?

• Failings of these methods– Maintenance

• Lack of flexibility

• Resilience

• Quality

– Re-usability of code– Backlog (visible and invisible)


What is Systems development

Systems development refers to all activities that go into producing an IS solution :– Systems Analysis

– Modeling

– Design

– Implementation

– Testing

– Maintenance


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


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?


Understanding requirements ...

• Analysing problems– Functional decomposition– Process specification– Flow Charts– Use case– Activity diagrams

• Designing solutions– Data flow diagrams– Entity relationship model


Building a model

• Functional decomposition

• Data Flow Diagram– Context diagram

– Processes

– Data Flow

– Data store

– External entities

F in an ce S h ipp ing P la nn ing

S a les


Example : www.RyanAir.com


Functional decomposition

T icke t is su ed

P a ym e nt

R e se rva tion

F lig h t in fo rm a tio n e nq u iry

P a ssen g er


Context diagram

On-line reservation

systemInternet Users

GlobalAirline seat

booking


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)


Data Flow Diagram

Flight

details

Lists options

Confirm price

Book now

Outward

Inward

Makes Reservation& payment

Credit

card

Reservation

Stores

Flight

details

Documents

Deploying IT resources (MIS 533) MBS in Management Information Systems and Managerial Accounting Systems (2006 / 2007) Fergal Carton Business Information