Review - All modules

Question 1

what does the DVD player port represent ?

implementing/performs or requires ?

Answer 1

implementing a behavioral feature

Question 2

what does the Network Access port represent ?

implementing/performs or requires ?

Answer 2

requires a behavioral feature

Question 3

what happens if the system structure package is deleted ?

Answer 3

the Dellsat-77 Satellite block will be deleted too

Question 4

complete the sentence

an instance of ___________ can exist independently of an instance of ________

Answer 4

Motherboard

Home computer system

Question 5

what is the default multiplicity of Home Computer system ?

Answer 5

0..1

Question 6

what is the default multiplicity of Motherboard ?

Answer 6

1

Question 7

how many behavioral features does Electric Generator own ?

Answer 7

1 behavioral feature operation - Generate Electricity

Question 8

how many behavioral features does Fuel-Powered Electric Generator own ?

Answer 8

This is a generalization relationship and the supertype inherits features from its subtype .

start () and generateElectricity()

Question 9

how many parts does the Fuel-Powered Electric Generator own ?

Answer 9

3

Question 10

how many features does Fuel-Powered Electric Generator own ?

Answer 10

features = behavioral + structural from both its subtype and supertype combined

7

Question 11

what is psc ?

Answer 11

look at the owning block .. the owning block is a constraint block “Propulsion requirement vs budget” .

Answer is constraint property

Question 12

Directory block can be composed of 0..1 instances of _______

Answer 12

File instances

Question 13

an instance of the ____________ block may own zero or more instances of the Directory block within an operational system

Answer 13

Directory

Question 14

what is Heavy water

Answer 14

connector between reactor core and steam generator part properties

Question 15

what is sg ?

Answer 15

part property

Question 16

what is Reactor Core ?

Answer 16

if rc is a part property
its type Reactor Core has to be a block

Question 17

what is primary coolant ?

Answer 17

association . a connector is always typed by an association

Question 18

RECAP :

what is a connector ?- element of usage

two kind of connectors are
1. delegation connectors
2. assembly connectors

Answer 18

a connector must be typed by an association

pcPower : Powecable

connector : association

Question 19

connector is to association as part property is to a _________

Answer 19

block

Question 20

which are delligation connectors?

a delegation connector can only be typed by a delegation association

Answer 20

see highlighted

Question 21

which are assembly connectors ?

Answer 21

see highlighted

Question 22

types of association

1. composite
2. reference association

an assembly connector would be typed by a _________association

Answer 22

reference association

Question 23

if S is not a subtype of T . what does that mean ?

Answer 23

S is not accepted where T is required .

Question 24

if S is not a subtype of T . S is not accepted where T is

what are the two rules of ports ?

Answer 24

types are same
directions are compatible

here in this example .. same type = M and same direction

Question 25

Review : Item Flows -- item flow represents items that flow in a connector -- when you add a item flow to a connector you need to add type to that item flow that describes what is being flowed from one element to another

Question 26

an item flow ( C ) can either be typed by a 1. 2. 3.

Answer 26

block signal value type

Question 27

things to remember item flow of the same type at least one element/item is flowing

Question 28

what is the name of the flow specification in this diagram ?

Answer 28

SE-SWE Handoff Artifacts

Question 29

multiplicity represents a constraint on how many __________can be involved in a given time.

Answer 29

instances

Question 30

**include use cases review** -- common mistake - it is not like a dependency relationship --an included use case is any use case that is the target target = arrowhead client = tailend here in this example the **Specify names of participants** is the target

Question 31

which is the extend use case -- common mistake - it is not like a dependency relationship -- the UC at the target end is complete without the UC at the client end executing the extend use case conveys when the UC at the target end ( arrowhead ) gets invoked the UC at the client end **may _________ be executed too**

Answer 31

optionally - it means the UC may or may not be executed

Question 32

What model elements are **client** and **gateways** ?

Answer 32

lifelines client and gateway correspond to properties owned by a block that has the behaviors modeled in a sequence diagram

Question 33

what is office laptop ?

Answer 33

a selector expression definition : The lifeline has the Selector expression that specifies the particular part represented by the lifeline aka instance

Question 34

how many message occurrences are there ?

Answer 34

6

Question 35

how many event occurrences are there ?

Answer 35

16

Question 36

system engineer writes the requirement first then the use case. The use case provides more details than the text in the requirement. which is correct ? C or D ?

Answer 36

for refine cases its pointing from the least abstract <===================== to more abstract think of the arrow pointing to the element that needs more refining. answer is C

Question 37

What is true for a **satisfy requirement** ? A ) multiple requirements can satisfy a requirement B) a single requirement can satisfy C) treat it as an OR .. this can satisfy OR this can satisfy

Answer 37

C

Question 38

what does this sequence diagram convey with time range 0 hr ..2 hr ?

Answer 38

the execution startscan operation must not last longer than 2 hours but why not choose 2hr ? because the design constraint says " the execution of the startScan operation must not last longer than 2 hours "

Question 39

what happens if sensor status is not Ready ?

Answer 39

then the else guard gets evaluated .

Question 40

how many message event occurrences are there in the else guard in the alt combined fragment

Answer 40

8

Question 41

how many times will the **missionPlannerWorkstation** line send a connect message

Answer 41

3 iterations of the loop so that the loop comes to an end because there is no guard

Question 42

two ways for a loop to come to an end 1) max number of loop iterations is reached 2) guard becomes _______

Answer 42

false

Question 43

arrow shows generalization relationship ( abstraction , inheritance , substitutability and extend ) generalization - where the subtype is accepted the supertype is ________ requires the send command = SUPERTYPE

Answer 43

required

Question 44

which model element contains the detach booter use case ?

Answer 44

Launch use cases package the system boundary ( launch vehicles ) does not convey namespace

Question 45

what is the correct interpretation of this model ?

Answer 45

any employee can interface with this system each execution of the behavior must have at least 1 employee involved in that behavior.

Question 46

true or false there can only be one instance of use case behavior running at a time

Answer 46

false there can be multiple instances of the execution of the use case

Question 47

the use case represents a defined behavior . It can have multiple 1) instances 2) executions running at a time.

Answer 47

never assume a use case doesn't exist or is running if its absent on the diagram. it can be in another diagram in the model

Question 48

why is this state 4 unreachable ?

Answer 48

state 1 is at rest ( no entry / transition) -- do behavior runs for some time event a could occur .. state 1 transitions to 2 another event could occur the do behavior completed and would cause a transition to fire to state 3 state 3 has no do behavior .. so it never rest . generates a completion event and goes to state 5 when does the completion event get generated ? the moment the run to completion event ends ( entry behavior in state 3) state 4 is unreachable

Question 49

a moveObject event occurs in the Controlling object 2 state ... what is the run to completion steps ? 1. display position 2. advance position 3. display position 4. update log EXIT BEHAVIOR of state your leaving TRANSITION EFFECT executes ENTRY behavior DO behavior

Answer 49

display position remember it always goes until exit behavior

Question 50

what is initialize ?

Answer 50

transition effect behavior shown after the /

Question 51

if primary collant is a connector what kind of association is Heavy water ? composite association or assembly connector ?

Answer 51

notice there is no box inside of the reactor core or steam generator.. that leads the reader to believe its a Heavy water is a assembly connector which can only be typed by a reference connector answer : reference association

Question 52

is reactor core a part property or block ?

Answer 52

part property

Question 53

the system model contains an activity named _________

Question 54

what is connect ?

Answer 54

call event trigger

Question 55

key idea connect is a call event trigger corresponds to an ____________

Answer 55

operation

Question 56

Key idea the operation is owned by the same __________ that owns the state machine seen here

Answer 56

block

Question 57

Key idea the operation is owned by the same __________ that owns the state machine seen here

Answer 57

block