Chapter 2 Design of Solutions
- Logic Design Concept
Overview:
l What is a logic design?
l The benefits of logical design
l responsibility of each team role during logic design
exercise:
1. What is the two steps of logical design?
A: Analysis and optimization.
2, what is the output of logical design?
answer:
l logical object model
l Preliminary user interface design
l logical data model
3. Do you pay attention to technical issues in logic design?
A: No. Logic design is not a technical solution.
4, what is the benefit of logic design?
answer:
l Hope to manage the complexity of the project
l Confirmation plan design can solve business problems
l Make more coordination between multiple systems
l as the basis of physical design
5. How do I identify the service in the scenario?
A: The service is a specific behavior that the business object must perform.
To identify the service's service, you will re-check the use of the scene and identify the behavior that the object must be performed. Then analyze the operations to be completed and the type of data that must be maintained. You can learn the necessary operations from this information. If the object requires maintenance information, it usually also operates information.
6. How do I identify the properties in the scenario?
A: The attribute is the definition of the value owned by the object.
To identify the properties of the object, you must go back to the scenario. Look for words or phrases that can further identify objects.
7, what is the sequence diagram?
A: The sequence diagram is the protagonist and object participating in the interaction in the period of time occurring. The vertical line in the sequence diagram represents the survival of the object. The arrow between the two object survival represents a message, which communicates through the message, conveys the activities that will happen.
8, how to store design tables and columns for the data of the solution?
answer:
N The object identified in the logic design step is the best candidate for the meter, which may be converted to a table in the database. The table is for those objects used to store information.
The properties of the N object constitute the columns in the table related to the object.
9. What is the purpose of perfecting the list of objects?
A: Not all objects are related to the solution, when the team is perfecting the object, they need to determine if the object is related to the solution.
10. How to use a single object verification method to verify the design?
answer:
l Identify an input and output of an object, and the capabilities and functionality that the object must be provided.
l Precise forecast each input and output and behavior
11. What is the purpose of controlling control in logic design?
answer:
l Ensure the integrity of the scene
l Coordinate services between multiple objects
l Identify the interdependence of crossover
12. During the logic design process of creating a solution for our customers, found a scene in previous analysis. How should you handle this new information?
answer:?
13. What is the responsibility of test role in logical design?
A: Make sure the logic design is verified.
Tidth:
1. Systematic thinking of "fifth cultivation"
2. Inquire before deciding to execute, "Do you have any opinions?", If not, you must perform it in strictly.
3, Team Portal "Team Portal"
In the above, all the information of this team will be placed, including the progress of each project, so that other teams and bosses are viewed.
4,
l Finish it first, finally optimization
l Meet the normal standard
l Microsoft makes things 6 points
5, do not set the credit card number, the employee number, etc., etc.! Reason: The new ID number is not entirely the water number, isn't it? !
Solution: Add N-bit encrypted numbers (or inspection number) after the water number.
6. It is the most important part in the upper left corner of a screen. Important features should be placed here!
