week 9, 10 & 11

Question 1

explain supervised data mining

Answer 1

the model is developed before the data is collected.

Question 2

explain unsupervised data mining

Answer 2

the data is collected and analysed then a model is built.

Question 3

explain support

Answer 3

the chance of two items being bought together.

Question 4

explain confidence

Answer 4

the proportion of customers who bought A that also bought B.

Question 5

explain lift

Answer 5

the ratio of confidence to base purchase probability

Question 6

explain a decision tree

Answer 6

decision trees break down a group of people into pure sub categoies.

Question 7

what is a business process?

Answer 7

a network of activities, resources, facilities and information that work together to perform some business function or achieving some goal.

Question 8

what is business process management

Answer 8

the systematic process of creating assessing and changing business processes.

Question 9

what are the 4 stages of BPM? explain what happens in each.

Answer 9

create a model of business process componants.

• users review and adjust model
• as-is model documents the current process that is then changed to solve the process problems.

create the system componants using the five elements of IS.

Implement the business process.

create policy for an ongoing assessment of the process effectiveness. adjust and repeat cycles.

Question 10

what is a functional process? what are the pros and cons?

Answer 10

a process that only happens within a single deparment. easy to implement but can lead to other inefficiencies.

Question 11

what is a cross-functional process? what are the pros and cons?

Answer 11

these processes are shared across different departments which can make them harder to implement but also reduce information silos.

Question 12

explain information silos and the problems that go with them.

Answer 12

information silos are stores of information caused by a lack of sharing which can cause inefficiencies such as data duplication. e.g. changes to data may only be made in one database leading to data elsewhere becoming outdated.

Question 13

what is an inherent process?

Answer 13

predesigned processes. industry best practice.

Question 14

what are the 4 primary uses of collaboration?

Answer 14

becoming informed
making decisions
solving problems
managing projects

Question 15

what are the 3 types of decisions? explain each

Answer 15

operational - day to day
low or no collaberation.

managerial - focus on the allocation and utilisation of resources. some collaboration.

strategic - much broader in scope and centre around organisational issues. almost always collaborative.

Question 16

explain the importance of feedback and itteration

Answer 16

a greater product can be produced than what is possible alone by reviewing and revising others work.