Chapter 2 Design of Solutions
- Information collection and analysis
Overview:
l Use modeling representation
l Create use case and use scene
l collection information
l analysis information
exercise:
1. What is the difference between interview skills for information collection and specific group investigation technology?
A: Specific group survey uses the group interview skills, during the information collection process, when the user has too much, it is exceeded the program that can be directly concerned, and the method of specific group surveys should be used.
2, when will I need to use prototype production skills to replace field observation skills to collect information?
A: When you can't observe the individual in a normal working environment, the prototype production can play a role.
3. How do I identify information collection skills that best suits the project?
A: The advantages and deficiencies of each technique are measured when developing information collection strategies. For example, to respond to a current business challenge, you may need to collect information as quickly as possible. The questionnaire investigation takes time to plan, execute and analyze. Family observation, interviews or user guidance can quickly collect information.
4. What is the purpose of creating a use case?
A: Use examples describe the operators, objects, and behaviors involved in the system to achieve a target. Use an example to identify: System boundary, task order, and hierarchy.
5, what is the operator directory manual?
A: The operator directory manual contains information about all operators used in the use case (the operator interacts with the system). The operator directory manual contains the following information: The operator's name, the operator's responsibilities, the source of information.
6, what is ORM?
A: ORM is the methodology of establishing a model for data related business needs, is a data modeling, like Erd, but not.
7, what is UML?
A: UML is a language that visualizes the software system and modeling its modeling.
8. What is the purpose of using various UML view?
A: UML provides a large number of graphics tools, enabling users to visualize and understand systems from different angles. The user can use the diagram to express multiple views of the system, which integrates the model of the system.
9. What is the operator in the case?
A: The operator is an entity that interacts with the system in order to complete an event. The operator can be: a user of the system; an entity located other than the system, such as another system or database.
10. What is the purpose of using the scene?
answer:
l Use the scenario to describe the details of the use case, and one use case often requires several scenes to describe.
l The use scenario is also used to describe abnormalities, anomalies are boundary.
11. What is the step of creating a scene?
answer:
l Determine prerequisites
l definition
l Split the activity as discrete steps
l Defining an abnormal
l Define the needs of the use scenario description
l Define the Source of the Scene
Tidth:
1. One person should have three ways: Knowledge, Skills, Tool. As many people have seen the ball in the circus performance, many people know that their principles, this is "knowledge"; only those diligent skills can really perform, this is "skills". And "Tools" is what is used in learning knowledge and exercise skills, which makes us achieve our goility faster.
2, one use case is a word containing the Lord, what is said, and guests.
3, PM and architects are the dancers of the foot. They enjoy the resources, while they shoulder responsibility and conditions.
4. Tips for collecting information include:
a) field observation
b) Interview C) Specific Group Survey
d) questionnaire survey
e) user guidance
f) prototype production
g) Statistical version
5. For any of the skills, there are three kinds of information sources:
a) Work results: real thing in business environment: training manual, job aid
b) System: Other processes used to complete an information system for a work: inventory tracking system, internal network
c) Humanity: Business people in business, they can provide valuable views and information
6. If you can't understand it, let it go down! At the same time, this is also an appointment of your expert rights and the right to exempt!
