Definition of an information system and its types; blockchain
What are the main components of an information system?
Hardware, software, telecom, databases, people, procedures
What does SDLC stand for?
System development life cycle
What is the goal of the planning phase?
The goal of the planning phase is to create a Project Development Plan
What is the goal of the analysis phase?
The goal of the analysis phase is to produce a list of requirements for a new or revised information system
Why can the design phase be referred to as the transformation phase?
Because this is when an idea is actually transformed into a real working system
Why do people depend on information systems?
Information systems retrieve databases
What are the phases of SDLC?
Planning phase, analysis phase, design phase, implementation phase, maintenance phase
What are the main planning phase activities?
Assemble the project team, justify the project, choose a development methodology, develop a project schedule, produce a project development plan
What are the main analysis phase activities?
Study the current system, determine system requirements, write a requirements report
What are the main software solutions?
Application development tool, system from scratch, application software, turnkey system
What are the main types of information systems?
Transaction processing system, management information system, decision support system, expert system
What does the SDLC provide?
The SDLC provides a general outline of how an information system evolves
What does a project justification include?
It includes an estimate of the project costs and potential financial benefits
What are system requirements?
System requirements are the criteria for successfully solving problems identified in an information system
What is a turnkey system?
A turnkey system is essentially an "information system in a box", which consists of hardware and application software designed to offer a complete information system solution
What is a blockchain?
A blockchain is a public ledger that records all Bitcoin transactions eliminating the need for a third party to process payments
What phase is the most time-consuming? Why?
The maintenance phase is the most time-consuming because it lasts as long as the information system is used
What documents does a Project Development Plan include?
A short description of the project, a justification for the project, a list of project teams participants, a schedule for the project
What is a System Requirements Report?
A System Requirements Report is a document that describes the objectives for an information system
What is a direct conversion? Why is it risky?
It is when the old system is completely deactivated, and the new system is immediately activated. It is risky because if the new system doesn't work correctly, it might need to be deactivated and undergo further development or testing