Walden Hospital Case History Walden Hospital, a once thriving medical center, ha
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Question
Walden Hospital Case History Walden Hospital, a once thriving medical center, has fallen on hard times. A new management takes over and, to turn around the fortunes of the hospital, hires a business consultant to analyze the problems and to draw a recovery plan. Among other things, the analyst makes a strong recommendation for deploying an enterprise-wide information system to cut costs, streamline operations and gain a competitive edge. Review Questions 1.Why do we need to gather requirements? 2.Explain the difference between requirements discovery and requirements gathering in general. Provide an example that clarifies the distinction between the two. 3.Comment on the following phase "an information system is a product.”
Explanation / Answer
Questions 1.Why do we need to gather requirements?
Requirements gathering is important part of any project and project management. Understanding fully what a project will deliver is critical to its success.
Having wrong requirements can become one of the biggest problem in projects as requiremtns only drive the project scope. If requirements are wrong and everything we implement will result inescapable outcome. Without the right effort in keeping to requirements, we will not able to deliver correct things to stake holders.
The requirements gathering process happens way before the project plan is put together. In other words, Requirements gathering means findiing out what is needed before we start implementation and keeping in mind that the end product should suit the needs of the client rather than the client suit the product.
Questions 2.Explain the difference between requirements discovery and requirements gathering in general. Provide an example that clarifies the distinction between the two.
1.
2.
3.
However, elicit and gather requirement, both together is used to collect and define the real business/stakeholder needs.
Example – You are shopping for a new refrigerator.
Your requirements will be : 1. can fit into your available space, 2. have the features that are important to you, and 3. are within your price range. 4. Brand
Manufacturers create a spec sheet for their products for primary requirements of concern like from price, to dimensions, to electrical consumption, to exterior finish and interior configuration.
Everything you care about is probably on that spec sheet, with some exceptions, and there will be things there that are of no concern to you.
Questions 3.Comment on the following phase "an information system is a product.”
An Information System is a product that can be engineered and manufactured like any other product. Information System as a four level of hierarchical structure as:
LEVEL 1 - SYSTEM - This represent the overall product tha needs to be built.
LEVEL 2 - SUB-SYSTEMS - This represent the one or more business processes that are associated with the system.
LEVEL 3 - PROCEDURES - This represent the work flow of each sub-system. There are essential two types of procedures: Administrative - representing procedures executed by humans and Computer.
LEVEL 4 - PROGRAMS - This represent the programs needed to execute each computer procedure.
The concept of "stepwise refinement" is not new techinqe and it is used successfully in the engineering/manufacturing of products for many years to manage complexity.
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