Internet start-up company

Question 1 Use Case Diagram
a) Develop a use case diagram for TDNC, showing the primary and secondary
actors, the use cases and the relationships between them. Pay attention to all
actors, including the secondary actors.b) Develop use-case specifications for the use case Add Note and any related
use-cases (i.e. such that have <


> or generalisation

relationships with the use case Add Note). The specifications should cover

all the options listed in the statement of requirements and should:

spell out the interaction between the actors and the system related to

adding a note,

send a confirmation using an email confirmation with the note details,

cover the important exceptional circumstances (alternative flows) that

might occur.

Make plausible simplifying assumptions if/when needed, but make sure

these are clearly stated in your submission.Question 2: Analysis class diagram

a) Develop an analysis class diagram for TDNC. Concentrate on the problem

domain classes, showing their attributes and important operations and

the associations between the classes.

There is no need to include type information, get and set methods, or


Consider a minimal set of boundary and control classes that might be

needed for use case realization.


o Use associations where appropriate and include in your models

association or role names, direction arrows, and multiplicities,

but dont worry about navigability.

o Use generalization/aggregation/composition where


o Dont bother with dependency relationshipsSubstantiate your answer using one or more of the taught techniques for

identifying classes and their relationships: noun/verb analysis procedure, CRC

cards, robustness analysis. You may use more than one technique in order to


improve your diagram, e.g. by discovering new classes, attributes or

operations, but using more than one analysis method will not necessarily get

you extra marks.Question 3: Use case realization (sequence diagram)

Draw a sequence diagram that realizes the use case Add Note. The diagram should

cover all possible branches, loops and alternatives that are documented in the use

case specifications you develop in your answer to Q1b. Make sure that your sequence

diagram is consistent with the class diagram you develop in your answer to Q2 and

with the use case specifications you develop in your answer to Q1b.

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