INFS2024 Week 1, 24/2/2020 · Consultation Hours: o Tuesday 4pm-5pm (CBE Café) - Lecturer o Tuesday, 2pm-3pm (CBE Café) - Tutor · Tutorial via zoom Systems Development Life Cycle 1. Scope definition 2. Problem analysis 3. Reqts analysis 4. Logical analysis 5. Decision analysis 6. Physical design & integration 7. Construct & testing 8. Install & delivery Systems Development Life Cycle 1.Scope Definition 8.Install & Delivery 7,Construct & Testing 2.Problem Analysis Week 3: Project Selection Week 4: Soft Systems 3 Reqts Analysis 6.Physical Design & Integration DESIGN 5.Decision Analysis 4.Logical Design Week 5: Requirements Determination ANALYSIS Week 6: Process Models: DFD Week 7: Logic Models Week 8&9 ER Diagrams Week 10&11: UML Systems Analysis & Design, Witten Bentley & Dittman 6th Ed P 109 Textbook: Kendall k. & Kendall J (2013) System Analysis and Design 9th edition Modelling software: Lucid Tutorial: questions are given the week prior and NEED to be SUBMITTED BY 9AM MONDAY EXAM Open book INTRODUCTION TO SYSTEM ANALYSIS · Software that forms their core are complex entities
Information System Complexity (This is an example of an old type of analysis diagram called a flowchart) Start Choice Yes No Stuff to do for "Yes" Stuff to do for "No" Finish 31 · Impossible to test out every possible combination o Must be disciplined and systematic in analyzing designing and building systems if we are to have any reasonable chance of actually getting what we want with minimum error - complexity · Software based disaster has a track record of poor success rate - 30% of projects are successful · User expectation re liability o A greater emphasis on disciplined and systematic approach The Systems Analyst Role, Knowledge, Skills and Ethics · Bridges the communication gap between information technologist and business personnel o Must therefore have an understanding of both information technologies and business operations · To facilitate change · Case study - Australian Crime & Intelligence Commission Biometric Identification Service: a project to display pictures of every Australian - for secret agents. There was something missing in the contract - assumed identities. To add it in the contract has to pay $10 million to a $50 million contract. POOR BUSINESS ANALYSIS · Systems analysts require a range of knowledge and skills in order to fulfil their role: o Technical knowledge, including of analysis techniques, information technologies and (ideally) programming skills o Business knowledge o Problem solving o Communication skills, verbal and written and in individual and group settings o Ability to listen and understand what others say o Ability to work effectively and cooperatively in team environment o Flexible, adaptability, resilience, persistence and ability to cope with and manage change o Leadership, mediation and conflict management skills o Ability to empower, trust, delegate and assign responsibility to others
o Knowledge of, and adherence to, relevant ethical principles and standards of behaviour . The System Analysts in the Organization o Functional units o Information services division/unit o Dedicated functional support unit (within Information Services) o Dedicated functional support