1. Different definitions and purposes: Information system planning refers to the formulation of long-term strategic planning of information systems, including determining the objectives, scope and resource requirements of information systems. Information system development planning refers to making development plans for specific information system projects, including phased objectives, time arrangement, resource allocation, etc.
2. Different time spans: The time span of information system planning is generally 3-5 years, which is a long-term strategic planning. The time span of information system development plan is usually several months or years, which is a short-term plan for a specific project.
3. Different scope: The scope of information system planning involves the whole enterprise or organization, including various departments and business processes. The scope of the information system development plan is aimed at specific projects, including specific functional requirements and technical choices.
4. Different decision-making levels: The formulation of information system planning is an important part of senior management's decision-making and needs the support and approval of senior management. The information system development plan is jointly formulated by the project manager and developers, and needs the cooperation and implementation of the project team members.