ITM 305 Chapter Notes - Chapter 2: User Interface, Failure Rate, Information System
1 Feb 2018
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Document Summary
Set of computing hardware, network hardware, topology and system software employed by organization. Information systems that supports the organization (information systems, subsystems and supporting tech) Sales subsystem: integrates online, phone and retail stores. Order fulfillment subsystem: track shipments, rate product and services. Customer account subsystem: shopping history, linkups, mountain bucks" rewards. Marketing subsystem: promotional packages, partner relationships, more complete merchandise information and reporting. Interviews, questionnaire, documents, observing business processes, researching vendors, comments and suggestions. Essential and important vs. nice to have. Flow of interaction between user and system. System requirements: functional requirements vs. non-functional requirements. Functional requirements: activities the system must perform. Business uses, functions the users carry out. Usability requirements user interface, ease of use. Implementation requirements: specific languages, tools, protocols and etc. Design constraints: specific restrictions for hardware and software. Physical requirements: physical facilities and equipment constraints. Supportability requirements: automatic updates and enhancement methods. Stakeholders: who"s involved and who to talk to.
