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Conceptual design of IS

Short answer

Conceptual design defines the logical, high‑level structure of a system without detailing hardware or programs. Steps: restate objectives, set constraints, identify information needs, decompose into subsystems, define outputs/inputs/data, produce alternative designs, evaluate them, and select the best for specification.

What is meant by conceptual design of Information System? Discuss various steps involved in the conceptual design of a system.

Conceptual design of an information system

Conceptual design is the stage of system design in which the logical, high-level structure of the new system is defined: what the system will do and its major components, inputs, outputs, processes and data, without fixing the exact hardware or program details. It turns the requirements from analysis into a general blueprint, often called the system's functional or logical design.

Steps in conceptual design

  1. Define the problem and objectives: restate the requirements and the goals the system must meet.
  2. Establish system constraints: cost, time, technology, laws and organisational limits.
  3. Determine information needs: identify the information each user and decision maker needs.
  4. Identify the major subsystems and functions: split the system into modules such as sales, inventory and billing.
  5. Define outputs, inputs and data: specify reports, screens, forms and data stores, and draw data flow diagrams and a conceptual data model (ER diagram).
  6. Develop alternative designs: produce two or more possible approaches (for example, in-house or package, centralised or distributed).
  7. Evaluate alternatives: compare them for cost, benefit, risk and feasibility.
  8. Select the best design and prepare the specification: document it and get approval from management before detailed design starts.

✓ Answer checked by Claude Opus 5.5 (high effort)

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