Seminars in IT for Businesses - Lecture 23: Information systems development (Part 2). In this chapter, students will be able to understand: Systems development life cycle, application development methodologies, project management, systems acquisition, development phases in a structured process. | PART 2 Information Systems Development LEARNING OBJECTIVES Systems Development Life Cycle Application Development Methodologies Project Management Systems Acquisition Development Phases in a Structured Process Video Information Systems Planning Process SYSTEMS DEVELOPMENT LIFE CYCLE (SDLC) Overview Where Do Systems Development Projects Come From? Problem – an actual undesirable situation that prevents the organization from fully achieving its purpose, goals, and/or objectives. Opportunity – a chance to improve the organization even in the absence of an identified problem. Directive - a new requirement that is imposed by management, government, or some external influence/parties. System Analysis & Design Approaches in a Nutshell DEVELOPMENT Modeling Prototyping (RAD) IMPLEMENTATION Build (In-house) Buy (COTS) No additional notes. System Construction Process Identify an IT problem to solve Break the large problem into several smaller, more manageable units Translate each unit (small problem) into computer programs Piece together each program into an overall comprehensive IS that solves the problem System Construction Process Strategies for Acquiring IT Applications Buy the applications (off-the-shelf approach) Lease the applications Software-as-a-Service (Cloud Computing) Use Open-Source Software Outsourcing Developing the applications in-house SYSTEMS DEVELOPMENT PROCESS System Identification, Selection, and Planning System Analysis System Design System Implementation System Maintenance Systems Development Process Scope Definition Phase What Business Problem Analysis Phase What System Issues (Info / Data, Processes, Communications / Interfaces), What User Needs, What to Do - Conceptual Model What Solution Design Phase How to Do - Physical Model Implementation / MaintenancePhase Do it, use it, keep it good Systems Development Life Cycle Systems Development Life Cycle in Practice Phase 1: System Identification, Selection, and . | PART 2 Information Systems Development LEARNING OBJECTIVES Systems Development Life Cycle Application Development Methodologies Project Management Systems Acquisition Development Phases in a Structured Process Video Information Systems Planning Process SYSTEMS DEVELOPMENT LIFE CYCLE (SDLC) Overview Where Do Systems Development Projects Come From? Problem – an actual undesirable situation that prevents the organization from fully achieving its purpose, goals, and/or objectives. Opportunity – a chance to improve the organization even in the absence of an identified problem. Directive - a new requirement that is imposed by management, government, or some external influence/parties. System Analysis & Design Approaches in a Nutshell DEVELOPMENT Modeling Prototyping (RAD) IMPLEMENTATION Build (In-house) Buy (COTS) No additional notes. System Construction Process Identify an IT problem to solve Break the large problem into several smaller, more manageable units Translate each
