This document provides an overview of functional modeling and data flow diagrams. It discusses that functional modeling gives the process perspective of object-oriented analysis and defines the functions and data flows within a system. It then describes different types of functional models including functional flow block diagrams and data flow diagrams. It provides details on how to construct functional flow block diagrams including the use of function blocks, numbering, references, flow connections, direction and gates. It also notes some potential problems with functional modeling.
This slide give the basic introduction about UML diagram and it's types, and brief intro about Activity Diagram, use of activity diagram in object oriented programming language..
What is Coupling and Cohesion.
Types of Cohesion
Types of Coupling
Logical , Temporal , Procedural , Sequential Cohesion
Content , Common , Control, Data Message , No Coupling
You can get clear knowledge about the functional dependencies in "Normalization". And also the rules, types of FDs and finally the closure and its applications
This slide give the basic introduction about UML diagram and it's types, and brief intro about Activity Diagram, use of activity diagram in object oriented programming language..
What is Coupling and Cohesion.
Types of Cohesion
Types of Coupling
Logical , Temporal , Procedural , Sequential Cohesion
Content , Common , Control, Data Message , No Coupling
You can get clear knowledge about the functional dependencies in "Normalization". And also the rules, types of FDs and finally the closure and its applications
If you're new to UML, our UML tutorial can get you on the right path. Learn more about what The Unified Modeling Language is, what it does, and why it's important.
Software Design is a process of describing, organizing and structuring the components of a system. It is like set of blueprints in which various components of the system are shown.
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for coding and implementation, there is a need of more specific and detailed requirements. The output of this process can directly be used into implementation in programming languages.
OOAD Part A Question with answer and Part B & C questions.
References :
1) Previous University Questions.
2) Applying UML and Patterns: An Introduction to Object-Oriented Analysis and Design and Iterative Development by Craig Larman.
3) Google search engine for text and images.
Hybrid optimization of pumped hydro system and solar- Engr. Abdul-Azeez.pdffxintegritypublishin
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TECHNICAL TRAINING MANUAL GENERAL FAMILIARIZATION COURSEDuvanRamosGarzon1
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Overview of the fundamental roles in Hydropower generation and the components involved in wider Electrical Engineering.
This paper presents the design and construction of hydroelectric dams from the hydrologist’s survey of the valley before construction, all aspects and involved disciplines, fluid dynamics, structural engineering, generation and mains frequency regulation to the very transmission of power through the network in the United Kingdom.
Author: Robbie Edward Sayers
Collaborators and co editors: Charlie Sims and Connor Healey.
(C) 2024 Robbie E. Sayers
Final project report on grocery store management system..pdfKamal Acharya
In today’s fast-changing business environment, it’s extremely important to be able to respond to client needs in the most effective and timely manner. If your customers wish to see your business online and have instant access to your products or services.
Online Grocery Store is an e-commerce website, which retails various grocery products. This project allows viewing various products available enables registered users to purchase desired products instantly using Paytm, UPI payment processor (Instant Pay) and also can place order by using Cash on Delivery (Pay Later) option. This project provides an easy access to Administrators and Managers to view orders placed using Pay Later and Instant Pay options.
In order to develop an e-commerce website, a number of Technologies must be studied and understood. These include multi-tiered architecture, server and client-side scripting techniques, implementation technologies, programming language (such as PHP, HTML, CSS, JavaScript) and MySQL relational databases. This is a project with the objective to develop a basic website where a consumer is provided with a shopping cart website and also to know about the technologies used to develop such a website.
This document will discuss each of the underlying technologies to create and implement an e- commerce website.
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It is now-a-days very important for the people to send or receive articles like imported furniture, electronic items, gifts, business goods and the like. People depend vastly on different transport systems which mostly use the manual way of receiving and delivering the articles. There is no way to track the articles till they are received and there is no way to let the customer know what happened in transit, once he booked some articles. In such a situation, we need a system which completely computerizes the cargo activities including time to time tracking of the articles sent. This need is fulfilled by Courier Management System software which is online software for the cargo management people that enables them to receive the goods from a source and send them to a required destination and track their status from time to time.
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Welcome to WIPAC Monthly the magazine brought to you by the LinkedIn Group Water Industry Process Automation & Control.
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2. Introduction
• Functional Modelling gives the process perspective of
the object-oriented analysis model
• And an overview of what the system is supposed to do.
• It defines the function of the internal processes in
the system with the aid of Data Flow Diagrams (DFDs).
• It depicts the functional derivation of the data values
without indicating how they are derived when they are
computed, or why they need to be computed.
• A functional modelling perspective concentrates on
describing the dynamic process.
3. Various Functional Models
• One of the first well defined function models, was the
Functional Flow Block Diagram (FFBD) developed by the
defence-related TRW Incorporated in the 1950s.
• Data Flow Diagram
5. Introduction
• The FFBD notation was developed in the 1950s, and is
widely used in classical systems engineering.
• FFBDs are one of the classic business process modelling
methodologies, along with :
– flow charts,
– data flow diagrams,
– control flow diagrams, etc
6. Function flow block
diagram
• A functional block diagram is a block diagram, that
describes the functions and interrelationships of a system.
The functional block diagram can picture:
– Functions of a system pictured by blocks
– Input and output elements of a block pictured with lines, and
– Relationships between the functions
– Functional sequences and paths for matter and or signals
– The block diagram can use additional schematic symbols to show
particular properties.
– Specific function block diagram are the classic Functional Flow
Block Diagram, and the Function Block Diagram (FBD) used in the
design of programmable logic controllers.
7. • Function block: Each function on an FFBD
should be separate and be represented by
single box (solid line). Each function needs
to stand for definite, finite, discrete
action to be accomplished by system
elements.
• Function numbering: Each level should have
a consistent number scheme and provide
information concerning function origin.
These numbers establish identification and
relationships that will carry through all
Functional Analysis and Allocation activities
and facilitate traceability from lower to
top levels.
8. • Functional reference: Each diagram should contain a
reference to other functional diagrams by using a
functional reference (box in brackets).
• Flow connection: Lines connecting functions should only
indicate function flow and not a lapse in time or
intermediate activity.
• Flow direction: Diagrams should be laid out so that the
flow direction is generally from left to right. Arrows are
often used to indicate functional flows.
9. • Summing gates: A circle is used to
denote a summing gate and is used when
AND/OR is present. AND is used to
indicate parallel functions and all
conditions must be satisfied to proceed.
OR is used to indicate that alternative
paths can be satisfied to proceed.
• GO and NO-GO paths: “G” and “bar G”
are used to denote “go” and “no-go”
conditions. These symbols are placed
adjacent to lines leaving a particular
function to indicate alternative paths.
10. • AND: A condition in which all
preceding or succeeding paths are
required.
• Exclusive OR: A condition in which one
of multiple preceding or succeeding
paths is required, but not all.
• Inclusive OR: A condition in which
one, some, or all of the multiple
preceding or succeeding paths are
required
12. Problems with Functional
Modeling
• Functional Modeling is not about modeling real things. It is
about writing expressions which describe the relationship
between things. Also, one tends to model what the
program does, not what it does it to.
• Functional Programming encourages writing pure, generic
functions which allow making decisions at the top level of
the call hierarchy. This is the opposite philosophy to
Object-oriented design, which encourages deferring actual
behaviour to decisions taken low down by overriding class
methods.