Module 3 - Internal block diagram Flashcards

1
Q

purpose of an IBD ?

A
  1. show the connections among the structural features of a block
  2. Can also display item flows
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2
Q

what does an item flow represent ?

A

represent some type of object , matter , energy or data that flows in a connector in a direction

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3
Q

what do interfaces represent ?

An interface defines a set a ________features ( operations / receptions) that are required in the boundary

A

behavioral

remember an operation and reception are further defined in an interface block

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4
Q

a rectangle with solid borders in an IBD represents

A

part property ( typed by a block)

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5
Q

a rectangle with dashed borders in an IBD represents

A

reference property ( typed by block or actor)

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6
Q

how many part properties does Communication and data handling subsystem own ?

A

7

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7
Q

syntax for structural features unique to IBD , what is the multiplicity of this demod part property

A

1

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8
Q

what does backUpComputer represent ?

A

a part property is a role played and constrained by either 1…2 instances of Flight computer internal to the owning block when built

FlightComputer is a block

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9
Q

what can this reference property eps by typed by ?

A

block or actor can type a reference property eps

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10
Q

‘wheels’ is a element of definition or usage

A

Wheels is a part property which are elements of usages

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11
Q

a solid line connecting two elements of usage in an IBD is called a

A

connector

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12
Q

what is a connector ?

A

relationship between structural features.

a connector is an element of usage , a connector is not a relationship .

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13
Q

IBD can show a element of usage or element of definition ?

A

element of usage. which is a role played by instances of type …
role : type

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14
Q

difference between connector and association ?

A

association is an element of definition
connector is an element of usage

power cable is a reference association
bcPower is a

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15
Q

a connector (element of usage) must be typed by an

A

association ( element of definition )

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16
Q

True or False

Connectors must be typed

A

False it doesn’t have to be typed

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17
Q

connector is to association as part property is to

A

block

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18
Q

two defined categories of connectors are
1. dellegation connectors
2. ___________________

A

assembly connectors

- both appear as solid lines in the IBD

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19
Q

what is HeavyWater ?

A

Heavy water is an association

20
Q

This shows a assembly connector because

A

peer to peer rectangles connectors that are external connectors

21
Q

This shows a delegation connector because

A

internal connector peer to peer

22
Q

an assembly connector is typed by a _____________association

23
Q

a delegation connector is typed by a ______________ association

A

composite
whole — part relationship

24
Q

what is PrimaryCoolant

25
what is ReactorCore ?
block
26
what are the names of the two connectors
pcPower and bcPower
27
two kinds of ports will you see in the OCSMP exam
flow ports standard ports
28
language requirement - A connector does not require a port at the end
don't add ports just to add them to the block . each port represent distinct connection points. before you do that you must know what make two ports compatible to connect them
29
two criteria for ports to be compatible 1. consistent in direction 2. consistent in ________
type
30
assembly connector - ports have to have the same direction
provides is in the same side as provides port
31
why is this port compatible ?
if one port requires an interface the other port must also require that interface as well | - consistent in type (power generation) , the interfaces that are assign
32
how many behavioral features is this block ? showing ?
1 operation and 1 reception
33
two types of flow ports ?
atomic and non atomic
34
a single instance flows between a port .. is what type of flow port
atomic
35
atomic flow ports can be typed 1. block 2. value type 3__________
signal
36
when there are multiple types of data ( data packet) that can cross a boundary can be
non atomic flow
37
a non atomic flow port has to be typed by
flow specification
38
atomic ports must have ports with opposite directions for a _______________ connector
assembly connector
39
atomic ports must have ports with same directions / same type Delegation connector or assembly connector ?
delegation connector
40
# True or False For non atomic flow ports with delegation connection can both be conjugated or neither .. the pair of ports must be consistent in type and consistent in direction
True
41
# for a delegation connector do you want the directions to be the same or opposite ?
same
42
# For a assembly connector do you want the directions to be the same or opposite ?
opposite
43
Flow types can be typed by 1. block 2. signal 3. ?
value type ## Footnote this picture shows the item flow typed by a block
44
# IBD recap a flow type of object that **could **flow in the connector . An IBD is a structural diaram not a behavior | adding an item flow to a connector is **optional** to do in the model
IBD doesnt convey order that things that flow.
45
limitations of dot notations | dot notations convey system hierachy
lost of model structure | the sensor payload part property does not contain x-axisSS ## Footnote the information of the location of x-axisSS is lost in the diagram.