Frage | Antworten |
tools, methodologies to analyze, design, optimize processes. | Business Process Management |
Enabler of organization change | Business Process Management |
Steps in BPM | IADIM Identify processes for change, analyze existing processes, design new process, implement new process, measure continuously |
rectangle in business process | action |
diamond in business process model | decision |
arrow in business process model | sequence of action |
Activities to implement new information system | golden triangle: on time, within budget, with quality |
Sometimes called "methodology" | System Development Process |
When inflexible, system development process is called | inflexible |
This slows development of new IS, but allows to share what and how implemented | documentation |
proposal to use IS to solve problem | preliminary study |
cost benefit analysis, initial schedule, charter or project agreement | feasibility study |
defining the broad problem and identifying causes | systems analysis |
planning new system | system design |
what the user sees, defines database | logical design |
database, program specifications, hardware | physical design |
marclogic | noSQL Hadoop |
physical design specs translated into software | programming |
written description of system for users and tech staff | documentation |
tasks and schedules for training, conversion, testing. anticipating and dealing with resistence | implementation planning |
do this because IS usually not intuitively obvious | training |
testing each program in system by itself | unit testing |
testing system as a whole | system testing |
full system, organization at once | direct cutover |
start with a small part of organization | pilot cutover |
one subsystem, then another | phased cutover |
run old and new simultaneously | parallel (acceptance) testing |
transfer of data from old files to new files in new formats | conversion |
fixing errors | maintenance |
adding new features | enhancements |
two methodologies to analyze and design IS | Structured and object-oriented methodologies |
techniques are step by step, will defined. | structured methodologies |
focus on modeling processes or actions that manipulate data | structured methodologies |
separate data from processes | structured methodologies |
represents processes and flow of data between them | data flow diagram |
breaking processes into successive layers of detail called high level and lower level views | decomposition |
top down chart showing each level of design, each levels relationship to other levels, and place in overall design structure | structure chart |
data encapsulated in object | object oriented methodologies |
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