Unformatted text preview: AK/ADZWS 251— Final Examination — Answer Key - Page 4 — Historical — Cleansed (‘standardized’) prior to storage — Optimized for access (clap)
These characteristics will make it easier to work with data from disparate sources for the analysis
involved decision making I’DSS 7—, Can store massive amounts of data.
- Waw saw
— Allow the storage of data from differ nt s stems
WWI sales channels, and cleanse for
—— kWh a tool to effectively retrieve data. — Much easier and more efﬁcient than using middleware to extract data from many
sources (see above points)
— Reduces data redundancy and confusion.
— Will make data from old order entiy and inventory systems compatible with data from
newer systems (eg. the web application) to perform analysis that include all relevant data
— Increases sharing of and accessibility to data.
— DC managers can see how other DC's operate, and the impact of their operational
decisions. These can help all DC's perform better ' Data warehouses: no: do not develop a data warehouse:
— VERY costly and complex to establish (hardware, software and people) — May be too expensive for BPS
— Requires continual maintenance as supporting applications change —- BPS would need to hire more IT staff to maintain the data warehouse, adding to the cost
— Requires high levels of security to ensure access to authorized users — Otherwise competitors could access BPS operations data, steal valuable competitive strategies — Hackers could corrupt, destroy data and impact decisions
— Data is NOT the system of record — Can not base speciﬁc operating decisions on this data, can use only for broader strategies Question 2 - Big Gas and Oil Company. (BGOC) A) Describe clearly four items of hardware that would be required to set 11 this network
Additional marks will not be awarded for multiple device types that perform the same
functions) (4 marks) (one mark per applicable hardware device, appropriately explained; W8 (re. wireless
networks), ch. 5, p 139 (re. network server)) ...
View Full Document
- Spring '09