Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
23 Cards in this Set
- Front
- Back
|
3 ways to obtain info system |
purchase software develop in-house outsource system |
|
|
canned software |
sold to users with similar req'ts |
|
|
turnkey systems |
software and hardware sold as a package; vendorinstalls system, user “turns the key” |
|
|
application service providers (ASPs) |
deliver software over the Internet; ASP owns andhosts software, user accesses it remotely |
|
|
benchmarking (for comparing system perf) |
comparing systems by executing an input, processing and output task on diff comp systems and evaluating results |
|
|
point scoring |
assign weights to each evaluation criteria based on its importance |
|
|
end-user computing (EUC) |
hands-on development, use and control of computer-based info systems by users; ppl use IT to meet needs rather than relying on systems professionals |
|
|
advantages of EUC |
-systems that meet users needs
-timeliness -free up system resources -ease of use |
|
|
disadvantages of EUC |
-logic/development errors -inadequate testing -inefficient systems -duplication of systems and data -system incompatibilities |
|
|
advantages of outsourcing |
-comp can focus on core competencies -improve cash position (sell assets) -access to greater expertise and better tech -lower costs -less development time -elmination of peaks/valleys usage -facilitation of downsizing |
|
|
disadvantages of outsourcing |
-inflexibility -loss of control -reduced competitive adv -locked-in system -increased risk -poor service |
|
|
to improve the development process [3] |
1. biz process redesign
2. prototyping 3. computer-aided software |
|
|
business process reegineering (BPR) |
drastic, one-time-event approach to improvingand automating business processes |
|
|
business process mngmt (BPM) |
continuously improving and optimizing an org’sbusiness processes |
|
|
principles of BPM |
Bus processes can produce competitive advantages Must be managed end to end Should be agile Must be aligned with organizational strategy and needs |
|
|
prototyping steps |
-determine basic needs -develop initial prototype -use feedback to modify system, re-present -use system |
|
|
operational prototypes |
turned into fully fxnal system |
|
|
use prototype if |
-high level of uncertainty -unclear what questions to ask -AIS can't be clearly visualized -high likelihood of failure |
|
|
advantages of prototyping |
-Better definition of user needs -Higher user involvement and satisfaction -Faster development time -Fewer errors -More opportunity for change -Less costly |
|
|
disadvantages of prototyping |
-significant user time -less efficient use of system resources -inadequate testing/documentation -never-ending development |
|
|
Computer-Aided SoftwareEngineering (CASE) |
Integrated package of tools that skilleddesigners use to help plan, analyze, design, program and maintain an IS |
|
|
advantages of CASE |
-improved productivity -improved program quality -cost savings -improved control procedures -simplified documentation |
|
|
disadvantages of CASE |
-incompatibility -cost -unmet expectations |
