BC 423 Systems Analysis and Design 423 1
BC 423 Systems Analysis and Design (คธ. 423 การวเคราะหและออกแบบระบบ 1. 2. 3. 4. 1/15/2022 ) Criteria Mid-term 40 % Final 35 % Project 15 % Lab 10 % 100 % BC 423 Systems Analysis and Design 1
����������������� (Introduction to Systems Analysis and Design) • ������ (Information System( • ��������� • ������� (Management Level) • ��������� • Systems Development Life Cycle • ��������� �� • �������� 1/15/2022 BC 423 Systems Analysis and Design 2
������� Environment Subsystem BOUNDARY 1/15/2022 BC 423 Systems Analysis and Design 4
1/15/2022 BC 423 Systems Analysis and Design 5
ระบบควบคมคลงสนค า BC 423 Systems Analysis and Design 9
Order Processing business flow Book order Invoice Customer Shipping Receivables Standard order entry process Close order Book sales order Inventory 1/15/2022 Schedule Order entry
Information System Components n Hardware n Software n System software n n n Application software n n n 1/15/2022 Operation System (OS) Network operating system (NOS) Enterprise applications Horizontal system Vertical system BC 423 Systems Analysis and Design 12
Information System Components n Data n n n 1/15/2022 Is the raw material that an information system transforms into useful information Tables Linking BC 423 Systems Analysis and Design 13
Information System Components n Processes n Define the tasks and business functions that users, managers, and IT staff members perform to achieve specific results n People n 1/15/2022 Users, or end users, are the people who interact with an information system, both inside and outside the company BC 423 Systems Analysis and Design 14
��������� (แบงตามผใช ) • Transaction Processing System (TPS) • Management Information System (MIS) • Decision Support System (DSS) • Executive Information System (EIS) • Expert System (ES) • Office Automation System (OAS) § Personal Information System § Work Group Information System 1/15/2022 BC 423 Systems Analysis and Design 16
Information System Applications 11 1/15/2022 BC 423 Systems Analysis and Design 17
������� (Management Level) ���������� • Top Management OAS • Middle Management OAS • Lower Management • Operational Employees 1/15/2022 BC 423 Systems Analysis and Design Strategic planning EIS, MIS, DSS, Tactical Planning Operational Plans Empowerment MIS, DSS, MIS, OAS TPS, OAS 18
System Development Methods n Object-oriented analysis O-O analysis combines data & processes into objects n Object is a member of a class n Class is a collection of similar objects n Objects possess properties n Methods change an object’s properties n Messages request specific behavior or information from another object n เรมใชในการพฒนาระบบ ค. ศ. 1995 เปนการรวบรวมขอมลและกระบวนการเขาดวยการภายใตวตถ (Object) เพอจำลองสภาพจรงของกระบวนการและการปฏบตงานของธรกจ BC 423 Systems Analysis and Design 23 การวเคราะหเชงวตถ 1/15/2022
Systems Development Life Cycle (SDLC( [Waterfall Model] 1/15/2022 BC 423 Systems Analysis and Design 24
Systems Development Life Cycle (SDLC( Problem Definition Analysis Design Development Testing Implementation Maintenance 1/15/2022 BC 423 Systems Analysis and Design 25
SDLC-Interactive Model n In this model, planning, analysis, and design tasks interact continuously. Interactive models often are used with O-O development methods 1/15/2022 BC 423 Systems Analysis and Design 26
Systems Development Life Cycle (SDLC) n Systems Operation, Support and Security การสนบสนนการใชระบบและความปลอดภย ����������� ��� n ��������� Software ��� Hardware n ����������� n 1/15/2022 BC 423 Systems Analysis and Design 31
��������� �� Who Develops Information Systems? n In-House applications – n ������������ Software packages - �������� n Internet-based application services – n ������������ Outsourcing – ��������� n Custom solutions n Enterprise-wide software strategies 1/15/2022 BC 423 Systems Analysis and Design 32
System Development Tools and Techniques • Model • Prototype • Computer-Aided System Engineering (CASE) Tools • Joint Application Development (JAD& ( Rapid Application Development (RAD( • Other Systems Development Tools เชน MSF 1/15/2022 BC 423 Systems Analysis and Design 33
Information Technology Department v Application Development – ������ v Systems Support and Security - ����� v User Support – ��������� v Database Administration – ������ v Network Administration - ������ v Web Support - �������� 1/15/2022 BC 423 Systems Analysis and Design 42
- Slides: 38