Systems Analysis and Design (Shelly Cashman Series) (MindTap Course List)
11th Edition
ISBN: 9781305494602
Author: Scott Tilley, Harry J. Rosenblatt
Publisher: Cengage Learning
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Chapter 8, Problem 1Q
Program Plan Intro
An overview of
Expert Solution & Answer
Explanation of Solution
A system design consists of user interface, inputs-outputs and an
- The main function of a good system design is to find errors, handle it and correct it wherever required. The error handling should be controlled so that it does not cause damage to the system.
- Once a system is deployed, there is no guarantee for no changes to be made in the system. Hence, the system design should support future changes in order to accommodate changes in user requirements or adapting to a new technology.
- An effective system meets the needs of the users and supports the business.
A few points to remember when designing a system are as follows:
- The designer should think like a user and anticipate requirements. Also, the system designer should keep in mind the set of inputs and outputs, and any exceptions, if any. The designer should not burden the user with a variety of choices as it might confuse him/her and may cause system damage.
- The system designer should model the system in such a way that it is easy to modify later on, when necessary. For example, if an attribute like ‘address’ maybe later broken down in parts like, ‘flat number, ‘street’, ‘locality', etc. The system should be able to work as efficiently with these attributes as it did, with the previous attribute.
- The designer should allow the user to set constraints as per his/her requirements. For example, the user may want to query to check a list of employees who have more than $5,000 in their accounts. Here, the value of $5,000 should be set by the user. It may be possible for the user to query for the same using the constraint as $3,000. Hence, this decision must rest with the user.
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Chapter 8 Solutions
Systems Analysis and Design (Shelly Cashman Series) (MindTap Course List)
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- Please explain system models. How should fundamental models be created?arrow_forwardMake a list of the main systems categories the organization uses, and provide a brief explanation of each.arrow_forwardExplain the idea of a system model. What considerations should be considered when creating core models?arrow_forward
- Please provide a more in-depth response. Many thanks The firm will no longer provide support for your present LIS system, thus you will need to choose a new one. The right system for your lab depends on a number of factors. (Remember that you still need to provide testing on the present system even while you make this change.) Do you handle everything in one fell swoop, and if so, why and how?arrow_forwardExplain the key principles and concepts behind the Wilson approach in a nutshell.arrow_forwardHow do you define the basics of systems analysis?arrow_forward
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