Chapter 1 Flashcards
To receive an A in System Analysis and Design.
What is an Information System?
An information system, or an IS, is an organization that captures and manages data to produce useful information. This information supports an organization and its employees, customers, suppliers, and parters. Information Systems are very necessary to gain a competitive edge against other companies.
What are the 7 types of of Information System applications?
Transaction Processing Systems (TPSs), Management Information Systems(MISs), Decision Support Systems (DSSs), Executive Information Systems (EISs), Expert Systems, Communication and Collaboration Systems, and Office Automation Systems.
What is a Transaction Processing System (TPS)?
TPSs process business transactions such as orders, timecards, payments, and reservations.
What is a Management Information System (MISs)?
MISs use transactions data to produce information needed by managers to run a business.
What is a Decision Support System (DSSs)?
DSSs help various decision makers identify and choose between options or decisions.
What is a Executive Information System (EISs)?
EISs capture and reproduce the knowledge of an expert problem solver or decision maker and then simulate the “thinking” of that expert.
What is an Expert System?
They are tailored to the unique information needs of executives who plan for the business and assess performance against those plans.
What are Communication and Collaboration Systems?
They enhance communication and collaboration between people, both internal and external to the organization.
What are Office Automation Systems?
They help employees create and share documents that support day to day office activities.
What are the 4 kinds of Stake Holders?
Systems Owners, Systems Users, Systems Designers, and Systems Builders.
What is a Systems Owner?
They normally come from the ranks of management. For medium to large information systems, system owners are usually middle or executive managers. Smaller information systems tend to have their owners come from middle management and supervisors. System Owners tend to care about the bottom line - cost. They also want to know how much value and what benefits the system brings to the business.
What is a Systems User?
They make up a vast majority of information workers in the information system. They are less concerned with costs and benefits of the system. They care about the ease of use, ease of learning and the overall functionality. Their primary concern is to get the job done. Conversations must be non-technical in order to keep communication easy.
What is a Systems Designer?
They are interested in information technology choices and in the design of systems that use chosen technologies. Todays designers tend to focus on technical specifications.
What is a System Builder?
The construct systems according to the designers specifications. In small organizations the designer and builder are the same person. In a large organization they are normally separate job titles.
What is the unique role of a System analyst?
They understand both business and computing. They study business problems and opportunities. Then they give the requirements to the informations systems that will be implemented by various technology specialists. They initiate change by changing the information systems. That changes the business. The information can be used competitively, find new markets and improve how they do business. They solve problems, they change things that can be improved etc. Swiss Army knife of Information Systems.
