SYSTEM PLANNING (CHAPTER 2)

1. STEPS I PRELIMINARY INVESTIGATION

1.1. 1. understand the problem or oppurtunity.

1.1.1. - Identify the true nature of the problem and the reason for the systems request - Stated problem may not be the real problem - Identify any potential opportunity discovered

1.2. 2. define the project scope and constraint.

1.2.1. - Determining the project scope means defining the specific boundaries, or extent, of the project.

1.3. 3. perform fact finding

1.3.1. - Fact-finding involves various techniques - Depending on what information is needed to investigate the systems request, fact-finding might consume several hours, days, or weeks

1.4. 4. analyze project usability , cost, benefit and schedule data.

1.4.1. -Specifically, you should consider the following: - What information must you obtain, and -- how will you gather and analyze the information? - What sources of information will you use, and what difficulties will you encounter in obtaining information?

1.5. 5. evaluate feasibility

1.5.1. Start by reviewing the answers to the questions you asked - Also consider the following guidelines: - Operational feasibility - Technical feasibility - Economic feasibility - Schedule feasibility

1.6. 6. present result and recommendation to management.

1.6.1. - The format of the preliminary investigation report varies from one company to another - The report must include an estimate of time, staffing requirements, costs, benefits, and expected results for the next phase of the SDLC

2. PRELIMINARY INVESTIGATION : HOW TO START

2.1. 1. Obtain authorization to proceed

2.1.1. - Projects can create concern or opposition - Need clear authorization from management - Good communication is important

2.2. 2. Identify the necessary information

2.2.1. - Review the preliminary investigation objectives - List all information needed for these objectives - Prepare a schedule of activities for this phase

2.3. 3. Perform fact-finding to gather the required information

2.3.1. - Analyze organization charts - Conduct interviews - Review current documentation - Observe current operations to obtain information

2.4. 4. Analyze the information

2.4.1. - Identify alternatives - Include costs and benefits -Recommend an action - Possible actions -Take no further action -Apply some other solution

2.5. 5. Present results and recommendations to management

3. SDLC PHASES

3.1. SYSTEM REQUEST

3.2. SYTEM PLANNING

3.3. SYSTEM ANALYSIS

3.4. SYSTEM DESIGN

3.5. SYSTEM DEVELOPMENT

3.6. SYSTEM IMPLEMENTATION

3.7. OPERATION AND MAINTENANCE

4. PRELIMINARY INVESTIGATION OBJECTIVES

4.1. PURPOSE : Used to determine whether the next phase of the system development cycle should be continued or not

4.2. Objectives for a preliminary investigation steps 1. Understand the problem or opportunity 2. Define the project scope and constraints 3. Perform fact findings 4. Analyze project usability, cost, benefits and schedule data 5. Evaluate FEASIBILITY 6. Present results and recommendations to managements