Developing Business/It Solutions Essay examples

1852 Words Jul 25th, 2012 8 Pages
Developing Business/IT Solutions

Systems Analysis and Design (SAD) • Overall process by which IS are designed and implemented within organizations • The process of completing an IS project is known as systems analysis and design (SAD). • Any SAD project involves four essential ingredients: – People - Methodology - Management - Tools • Two most common approaches to Systems Analysis and Design ← Object-oriented analysis and design ← Systems Development Life Cycle

Systems Development Lifecycle (SDLC)


Systems Investigation Stage
The Investigation Phase begins the preliminary study of the proposed information system solution to
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– Determines if system will be used as intended at its full capacity

• How well can we solve the problem in a reasonable period? – Supports the business priorities of the organization. – Solves the identified problem. – Fits within the existing organizational structure.

Economic Feasibility: This is concerned with whether the proposed IS benefits are greater than its costs. This area is particularly concerned with financial affordability -- whether the firm can pay to develop the system. - Determines resources needed for implementation - Determines if benefits outweigh the costs

• Assess: Cost savings - Increased revenue - Decreased investment requirements - Increased profits • Cost/benefit analysis

A cost/benefit analysis is used to weigh the total costs a new system is likely to incur against the total anticipated benefits to be gained. This includes determining tangible costs (such as hardware and software purchases and employee salaries) and intangible costs such as effects on employee morale and disruptions in productivity during the installation of the new system. Benefits too can be either tangible (such as reduced inventory and carrying costs) or intangible (higher customer satisfaction).
Systems Analysis • An in-depth study of end user information needs • That produces functional requirements that are used as the basis for the design of a new

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