System Analysis and Design: System Design and it’s Classification-System Pyramid 3 level or 4 level Architecture of System

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1 month ago

System Analysis and Design: System Design and it’s Classification-System Pyramid 3 level or 4 level Architecture of System.

https://www.gyanodhan.com/video/7A1.%20Computer%20Science/System%20Analysis%20and%20Design/690.%20System%20Design%20and%20it%27s%20Classification%20-%20System%20Pyramid%203%20level%20or%204%20level%20Architecture%20of%20System.mp4

Sure! Here’s a clear and simple explanation of System Design and its Classification, along with the System Pyramid Architecture used in System Analysis and Design:

Contents

1 Subject: System Analysis and Design
- 1.1 Topic: System Design & Its Classification
2 What is System Design?
3 Types (Classification) of System Design
- 3.1 1. Logical Design
- 3.2 2. Physical Design
4 System Pyramid Architecture (3 or 4 Levels)
- 4.1 Option A: 3-Level Architecture
- 4.2 Option B: 4-Level Architecture (more detailed)
5 Visual Summary: System Pyramid (4-Level)
- 5.1 Relationship Between the Levels:
6 Summary Points

Subject: System Analysis and Design

Topic: System Design & Its Classification

Focus: System Pyramid – 3-Level or 4-Level Architecture

What is System Design?

System Design is the process of defining the architecture, components, modules, interfaces, and data for a system to satisfy specific requirements.

It comes after system analysis and aims to convert business requirements into technical solutions.

Types (Classification) of System Design

System design is broadly classified into:

1. Logical Design

Focus: What the system must do
Includes:
- Inputs & outputs
- Data flow diagrams (DFDs)
- Logical relationships

2. Physical Design

Focus: How the system will perform tasks
Includes:
- Hardware/software specification
- Database design
- Screen layouts & reports

System Pyramid Architecture (3 or 4 Levels)

A System Pyramid shows the hierarchy of information systems in an organization.

Option A: 3-Level Architecture

Level	Type of System	User Level	Purpose
Top	Strategic Level (EIS)	Executives (CEO)	Long-term planning & forecasting
Middle	Tactical Level (MIS/DSS)	Managers	Medium-term decisions & analysis
Bottom	Operational Level (TPS)	Staff/Workers	Day-to-day transaction processing

Option B: 4-Level Architecture (more detailed)

Level	System Type	User	Example
1. Strategic	Executive Information System (EIS)	Top Executives	Annual reports, Forecasting
2. Tactical	Decision Support System (DSS) / MIS	Middle Managers	Sales trends, Budget planning
3. Knowledge	Knowledge Work System (KWS) / Office Automation	Knowledge workers	CAD, Word Processing
4. Operational	Transaction Processing System (TPS)	Front-line staff	Billing, Payroll, Order Entry

Visual Summary: System Pyramid (4-Level)

Relationship Between the Levels:

Lower-level systems (TPS) feed data upwards to MIS, DSS, and EIS.
Upper-level systems help in making informed decisions based on data processed at lower levels.

Summary Points

System Design = Logical + Physical Design
Pyramid Architecture helps organize systems by user level
3-Level = TPS, MIS/DSS, EIS
4-Level = TPS, KWS/OAS, MIS/DSS, EIS

Would you like:

A diagram of the system pyramid?
Sample questions for exam prep?
A PDF note sheet with this content?

Let me know!

System Analysis and Design: System Design and it’s Classification-System Pyramid 3 level or 4 level Architecture of System

Subject: System Analysis and Design

Topic: System Design & Its Classification

What is System Design?