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 pm, Boole 6 Lecturer : Fergal Carton Name: Fergal Carton Phone: Office:Room 2.113, O’Rahilly Building Web:

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 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 28 th 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, 4 th 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 : –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 –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 Data Flow Diagram –Context diagram –Processes –Data Flow –Data store –External entities

MBS (MIMAS) / MIS533 / Deploying IT Resources Example :

MBS (MIMAS) / MIS533 / Deploying IT Resources Functional decomposition

MBS (MIMAS) / MIS533 / Deploying IT Resources Context diagram On-line reservation system Internet Users Global Airline seat booking

MBS (MIMAS) / MIS533 / Deploying IT Resources Example : 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 Flight details Lists options Confirm price Book now Outward Inward Makes Reservation & payment Credit card Reservation Stores Flight details