on
GROUP 3

ezzaty nordin
ain
nabila amirah
ummi
siah
jamilah
farahin
nabilah syahirah
chau
azlina
asilah


DFP5043 – Software Requirement and Design

Tutorial Lab4

Instruction:
Discuss and contribute together to answer  
the questions below and post the answer to the class’s blog.
Don’t forget to write your name in the blog.

Define and draw example of architectural design and models of software architecture below,

i.                     Architectural Design
ii.                   Logical View
iii.                  Process View
iv.                 Development View
v.                   Physical View
vi.                 Scenario


ANSWER:

i.                     Architectural Design
·          Architectural design is a concept that focuses on components or elements of a structure. An architect is generally the one in charge of the architectural design. They work with space and elements to create a coherent and functional structure.
 


ii.                   Logical View
Logical view: The logical view is concerned with the functionality that the system provides to end-users. UML diagrams used to represent the logical view include, class diagrams, and state diagrams or which shows the key abstractions in the system as objects or object classes.







iii.                  Process View: The process view deals with the dynamic aspects of the system, explains the system processes and how they communicate, and focuses on the runtime behavior of the system. The process view addresses concurrency, distribution, integrators, performance, and scalability, etc. UML diagrams to represent process view include the activity diagram.



iv.                 Development view
  • ·         The development view illustrates a system from a programmer's perspective and is concerned with software managementThis view is also known as the implementation view.It uses the UML Component diagram to describe system components.
  • ·         Viewer : Programmers and Software Managers
  • ·         Considers : Software module organization ( Hierarchy of layers, software management, reuse, constraints of tools )
  • ·         What this view shows? “This view shows the building blocks of the system”.
  • ·         UML diagram : Component, Package diagrams








v.                   Physical View
The physical view depicts the system from a system engineer's point of view. It is concerned with the topology of software components on the physical layer as well as the physical connections between these components. This view is also known as the deployment view. UML diagrams used to represent the physical view include the deployment diagram. The other name for physical view is deployment view model.


vi.               Scenario
The description of an architecture is illustrated using a small set of use cases, or scenarios, which become a fifth view. The scenarios describe sequences of interactions between objects and between processes. They are used to identify architectural elements and to illustrate and validate the architecture design. They also serve as a starting point for tests of an architecture prototype. This view is also known as the use case view.

-        -  EXAMPLE OF USE CASE SCENARIO

Name of Use Case: Take Exam Actor(s): ExamTaker
Flow of events:

  1.              ExamTaker connects to the Exam server.
  2.     Exam server checks whether ExamTaker is already authenticated and runs authentication   process if necessary.
  3.              ExamTaker selects a exam from a list of options.
  4.      ExamTaker repeatedly selects a question and either types in a solution, attaches a file with a solution, edits a solution or attaches a replacement file.
  5.        ExamTaker either submits completed exam or saves current state.
  6.     When a completed exam is submitted, Exam server checks that all questions have been     attempted and either sends acknowledgement to ExamTaker, or saves current state and notifies ExamTaker of incomplete submission.
  7.        ExamTaker logs out.


















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