Web Application Systems Functional Modeling

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Questions and Answers

What is the advantage of the WAS architecture in system development?

High maintenance costs

Limited flexibility

Economic efficiency (correct)

High complexity in design

What is the main purpose of the GTST method?

To break down the system into small goals (correct)

To create large-scale systems

To analyze financial performance

To define programming languages

Which part of the GTST method describes the process of achieving the main goal?

Data model

Success tree (correct)

Functional model

Goal tree

What challenge is associated with using the GTST method for complex systems?

Difficulty in understanding functions through the model Signup and view all the answers

Which modeling method is NOT mentioned as a common function modeling method?

Flowchart modeling method Signup and view all the answers

What does a functional model for WAS guide in its development?

Requirement analysis Signup and view all the answers

What does the formal model named WASFM aim to improve?

Cycle of development Signup and view all the answers

Which of the following aspects is crucial for effective system design, development, and testing?

Clear and detailed definitions of system requirements Signup and view all the answers

What is the primary purpose of UML in object-oriented technology?

To provide a visual representation of a system's specification Signup and view all the answers

Which type of function corresponds to the specific operations such as add and delete in WAS?

Button function Signup and view all the answers

In the context of WAS, what does PAF stand for?

Parent Function Signup and view all the answers

What does ID represent in the Area Description (AD) structure?

Unique identifier of the area in the page Signup and view all the answers

Which modeling tool is NOT part of UML's common diagrams?

Flowchart Diagram Signup and view all the answers

What is a logical description of the Page Contents (PC) in a web application?

Describes the contents that the web page should include Signup and view all the answers

Which function type is most likely to arrange system contents into different modules?

Catalog function Signup and view all the answers

What does the Area Description (AD) consist of?

A set of parameters detailing the area within a page Signup and view all the answers

What does the acronym PAC stand for in the given context?

Page Area Content Signup and view all the answers

Which of the following is NOT a main control type in web applications as defined in the content?

Dropdown Signup and view all the answers

What does the 'FL' in the Field Description signify?

Field Limits Signup and view all the answers

In the List Area Content, what does the 'PN' parameter define?

Page Number Signup and view all the answers

What does the 'Value' field represent in a Field Description?

The value entered by the user in the field Signup and view all the answers

What is the purpose of the 'Refresh' parameter in the List Area Content?

To define if the content should be updated automatically Signup and view all the answers

Which statement accurately describes the 'Empty' field in the Field Description?

It specifies whether the field can be left blank. Signup and view all the answers

What does the 'RSeq' parameter in the List Area Content define?

Row Sequence Signup and view all the answers

What does AC represent in the context of Functional Requirements?

Area Contents Signup and view all the answers

In the Catalog Function (CF), which of the following is NOT included?

Access Control Signup and view all the answers

What does PF stand for in Functional Requirements?

Page Function Signup and view all the answers

Which of the following is included in the definition of Static Area Content (SAC)?

Content Description Signup and view all the answers

What is the role of ND in Navigation Area Content (NAC)?

It defines the type of navigation links. Signup and view all the answers

In Query Area Content (QAC), what does FR represent?

Field Relationships Signup and view all the answers

Which query types are identified in Query Area Content (QAC)?

Precise and Fuzzy Signup and view all the answers

If a button function opens a new page, what is the typical value of OL?

0 Signup and view all the answers

What is the primary purpose of the WAS functional model (WASFM)?

To provide a formal definition of web system functions. Signup and view all the answers

How does WASFM assist developers in their work?

By standardizing their work and reducing modifications. Signup and view all the answers

Which group specifically benefits from the formal definitions provided by WASFM during testing?

Testers designing comprehensive test cases. Signup and view all the answers

What advantage does having a clear definition of system functions offer in the development process?

It assists in accurately understanding system requirements. Signup and view all the answers

What might designers reference when developing modules according to WASFM?

Details of each function within the system. Signup and view all the answers

In what way does WASFM contribute to the automated programming and testing process?

By making it possible to program and test accurately. Signup and view all the answers

What does the mention of 'UML' in the references suggest about WASFM?

WASFM improves upon the UML methodology. Signup and view all the answers

What kind of modifications does using WASFM primarily reduce?

Inconsistent documentation changes. Signup and view all the answers

Study Notes

WAS Functional Modeling Methods

Web Application Systems (WAS) are complex with a large number of functions.
System requirement analysis is essential for design, development, and testing.
WASFM (Web Application System Functional Model) is a formal model for describing WAS functions.

Common Function Modeling Methods

UML (Unified Modeling Language) is a standard modeling language used in object-oriented technology.
IDEF0 (Integrated Definition for Function Modeling) is a function modeling method.
GTST (Goal-tree Success-Tree) is a functional modeling method.
GTST divides the system into small goals, creating a goal tree and success tree to represent system functions.
GTST is suitable for simple systems, but for complex systems, the model becomes too large and difficult to understand.

WASFM Model Definitions

WASFM defines three types of functions:
- Catalog function: Navigational links to arrange system contents.
- Page function: Functional links that correspond to a specific web page.
- Button function: Operative buttons corresponding to specific operations.
WAS functions are represented as a set of catalog, page, and button functions.

WASFM Components

FR (Functional Requirements): A set of catalog, page, and button functions
CF (Catalog Function): A combination of function name, level, and parent function (PAF)
PF (Page Function): A combination of function name, URL, PAF, and page contents (PC)
BF (Button Function): A combination of function name, operation name (ON), parent function page (PF), operation logic (OL), and corresponding list area (CL)
AD (Area Description): An area within a page, with an ID, position, area type (AT), and area content (AC).
SAC (Static Area Content): A static area within a page, with a content description (CD).
NAC (Navigation Area Content): A navigation area within a page, with a navigation description (ND) and relationship (NR).
QAC (Query Area Content): A query area within a page, with query field description (FD), fields relationships (FR), query type (QT), and corresponding list area (CL).
FD (Field Description): A field within a page, with field name (FN), control type (CT), empty status, value, default, and field limit (FL).
LAC (List Area Content): A list area within a page, with columns (Col), column sequence (CSeq), rows (Row), row sequence (RSeq), sorting options (Sort), page number (PN), refresh settings (Refresh), and refresh frequency (RF).
FAC (Form Area Content): A form area within a page, with field descriptions (FD).
PAC (Page Area Content): A page area within a page, with a content description (CD).

WASFM Model Example

The example uses DMIMS (University Information Management System) to demonstrate WASFM practical application.
DMIMS has five top modules: System Management, Course Management, Reservation Management, Content Management, and Achievements Management.

Conclusion

WASFM provides a formal way to describe web application functions with precision.
Applying WASFM enables:
- Accurate understanding of system requirements.
- Clear development task definition.
- Detailed system comprehension for testing purposes.
- Potential for automated programming and testing.

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Description

This quiz covers functional modeling methods for Web Application Systems (WAS), including UML, IDEF0, and GTST. Learn about the WAS Functional Model (WASFM) and its crucial role in system requirement analysis and design. Test your knowledge on defining catalog functions and other components of WAS.