This presentation is about a lecture I gave within the "Software systems and services" immigration course at the Gran Sasso Science Institute, L'Aquila (Italy): http://cs.gssi.infn.it/.
http://www.ivanomalavolta.com
Software architecture and software design are two aspects of the same topic. Both are about how software is structured in order to perform its tasks. The term "software architecture" typically refers to the bigger structures of a software system, whereas "software design" typically refers to the smaller structures.
This presentation is about a lecture I gave within the "Software systems and services" immigration course at the Gran Sasso Science Institute, L'Aquila (Italy): http://cs.gssi.infn.it/.
http://www.ivanomalavolta.com
Software architecture and software design are two aspects of the same topic. Both are about how software is structured in order to perform its tasks. The term "software architecture" typically refers to the bigger structures of a software system, whereas "software design" typically refers to the smaller structures.
This lecture provide a review of requirement engineering process. The slides have been prepared after reading Ian Summerville and Roger Pressman work. This lecture is helpful to understand user, and user requirements.
This slideshow walks through common and popular Architectural design patterns such as Data-Driven Architecture, Micro-Services, Layered Architecture, and Micro-Kernel Architecture. I also go over the pros and cons and in which scenario each architecture is preferable
This lecture provide a review of requirement engineering process. The slides have been prepared after reading Ian Summerville and Roger Pressman work. This lecture is helpful to understand user, and user requirements.
This slideshow walks through common and popular Architectural design patterns such as Data-Driven Architecture, Micro-Services, Layered Architecture, and Micro-Kernel Architecture. I also go over the pros and cons and in which scenario each architecture is preferable
Software engineering is a detailed study of engineering to the design, development and maintenance of software. Software engineering was introduced to address the issues of low-quality software projects.
May Marketo Masterclass, London MUG May 22 2024.pdfAdele Miller
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This is a MUG with a twist you don't want to miss.
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Web and Mobile App Development: From responsive websites to intuitive mobile applications, Prosigns develops cutting-edge solutions that engage users and deliver seamless experiences across devices.
AI & ML Solutions: Harnessing the power of Artificial Intelligence and Machine Learning, Prosigns provides smart solutions that automate processes, provide valuable insights, and drive informed decision-making.
Blockchain Integration: Prosigns offers comprehensive blockchain solutions, including development, integration, and consulting services, enabling businesses to leverage blockchain technology for enhanced security, transparency, and efficiency.
DevOps Services: Prosigns' DevOps services streamline development and operations processes, ensuring faster and more reliable software delivery through automation and continuous integration.
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SOCRadar Research Team: Latest Activities of IntelBrokerSOCRadar
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The alleged breach affected Europol agencies CCSE, EC3, Europol Platform for Experts, Law Enforcement Forum, and SIRIUS. Infiltration of these entities can disrupt ongoing investigations and compromise sensitive intelligence shared among international law enforcement agencies.
However, this is neither the first nor the last activity of IntekBroker. We have compiled for you what happened in the last few days. To track such hacker activities on dark web sources like hacker forums, private Telegram channels, and other hidden platforms where cyber threats often originate, you can check SOCRadar’s Dark Web News.
Stay Informed on Threat Actors’ Activity on the Dark Web with SOCRadar!
In software engineering, the right architecture is essential for robust, scalable platforms. Wix has undergone a pivotal shift from event sourcing to a CRUD-based model for its microservices. This talk will chart the course of this pivotal journey.
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Participants will gain valuable insights into Wix's strategies for ensuring atomicity in database updates and event production, as well as caching, materialization, and performance optimization techniques within a distributed system.
Join us to discover how Wix has mastered the art of balancing simplicity and extensibility, and learn how the re-adoption of the modest CRUD has turbocharged their development velocity, resilience, and scalability in a high-growth environment.
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top nidhi software solution freedownloadvrstrong314
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Venez le découvrir lors de cette session ignite
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Enterprise Resource Planning System includes various modules that reduce any business's workload. Additionally, it organizes the workflows, which drives towards enhancing productivity. Here are a detailed explanation of the ERP modules. Going through the points will help you understand how the software is changing the work dynamics.
To know more details here: https://blogs.nyggs.com/nyggs/enterprise-resource-planning-erp-system-modules/
2. Definition
The software architecture of a
program or computing system is the
structure or structures of the system,
which comprise software elements,
the externally visible properties of
those elements, and the relationships
among them.
5. Why is architecture important?
►Handling complexity
►Communication among stakeholders
►Early Design Decisions
►SA is a transferable, reusable model
6. Software Architecture Document
1. Introduction
2. Architectural Representation
3. Architectural Goals and Constraints
4. Use-Case View
5. Logical View
6. Process View
7. Deployment View
8. Implementation View
9. Data View (optional)
10. Size and Performance
11. Quality
7. Architectural Patterns : Definition
An architectural style or pattern is
a description of the component and connector
types involved in the style
the collection of rules that constrain and relate
them
8. Model-View-Controller
► Context
Provides a flexible structure for developing interactive applications.
► Problem
User interfaces are subject to changes. As new features are added
to the system, the UI must provide appropriate command and
menus to handle them.
Different platforms support different ‘look and feel’ standards; the
UI must be portable.
Different kind of users may expect different data format from the
UI (bar char, spreadsheet etc.).
► Solution
Divide the system into three parts: processing, output, and input:
Model: contains the processing and the data involved.
View: presents the output; each view provides specific
presentation of the same model.
Controller: captures user input (events-> mouse clicks, keyboard
input etc.). Each view is associated to a controller, which captures
user input.
9. Model-View-Controller
► Main goal:
facilitate and optimize the implementation of interactive systems,
particularly those that use multiple synchronized presentations of shared
information.
► Key idea:
separation between the data and its presentation, which is carried by
different objects.
► Controllers typically implement event-handling mechanisms that are executed
when corresponding events occur.
► Changes made to the model by the user via controllers are directly propagated
to corresponding views. The change propagation mechanism can be
implemented using the observer (design) pattern.
12. Layered Pattern
► Context
You are working with a large, complex system and you
want to manage complexity by decomposition.
► Problem
How do you structure an application to support such
operational requirements as maintainability, scalability,
extensibility, robustness, and security?
► Solutions
Compose the solution into a set of layers. Each layer
should be cohesive and at Roughly the same level of
abstraction. Each layer should be loosely coupled to the
layers underneath.
13. Layered Pattern
► Layering consists of a hierarchy of layers, each
providing service to the layer above it and
serving as client to the layer below.
► Interactions among layers are defined by suitable
communication protocols.
► Interactions among non-adjacent layers must be
kept to the minimum possible.
► Layering is different from composition
higher-layers do not encapsulate lower layers
lower layers do not encapsulate higher layers (even
though there is an existence dependency)
14. Three-Layered Pattern
► Context
You are building a business solution using layers to organize your
application.
► Problem
How do you organize your application to reuse business logic,
provide deployment flexibility and conserve valuable resource
connections?
► Solutions
Create three layers: presentation, business logic and data
access.
Locate all database-related code, including database clients access
and utility components, in the data access layer.
Eliminate dependencies between business layer components and
data access components.
Either eliminate the dependencies between the business layer and
the presentation layer or manage them using the Observer
pattern.
15.
16. Software Architecture Document
1. Introduction
2. Architectural Representation
3. Architectural Goals and Constraints
4. Use-Case View
5. Logical View
6. Process View
7. Deployment View
8. Implementation View
9. Data View (optional)
10. Size and Performance
11. Quality
17. Architectural Goals and Constraints
► The architecture will be formed by considering:
functional requirements, captured in the Use-Case
Model, and
non-functional requirements, quality att.
► However these are constraints imposed by the
environment in which the software must operate
that will shape the architecture :
need to reuse existing assets
imposition of various standards
need for compatibility with existing systems
18. Software Architecture Document
1. Introduction
2. Architectural Representation
3. Architectural Goals and Constraints
4. Use-Case View
5. Logical View
6. Process View
7. Deployment View
8. Implementation View
9. Data View (optional)
10. Size and Performance
11. Quality
19. Architectural Structures and Views
In construction, there are blueprints of
Plan , Different sides of construction , Electrical wiring , Plumbing,
…
Each of these views specifies a single entity (i.e. the
construction) from a different perspective (used by a
different person, for a different goal).
Similarly there are different structures and views in SA.
► View is a representation of software architecture based on
an structure as written by the architect and read by
stakeholders (an instance of the structure)
► SA is documented by a number of views.
21. Use-case View
► Contains only architecturally significant use cases
(whereas the final use case model contains all the
use cases).
The logical view is derived using the use cases identified
in the architectural view of the use case model.
► Architecturally significant use cases:
critical use cases, those that are most important to the
users of the system (from a functionality perspective)
use cases that carry the major risks
use cases that have the most important quality
requirements, such as performance, security, usability,
etc.
23. Logical View
► The Logical View is a subset of the Design Model
which presents architecturally significant design
elements
► describes the most important classes
► their organization in packages and subsystems
► organization of these packages and subsystems
into layers
► It also describes the most important use-case
realizations, for example, the dynamic aspects of
the architecture
27. Process View
►Consists of the processes and threads
that form the system’s concurrency and
synchronization mechanisms, as well as
their interactions
28. Deployment View
►This section describes one or more physical
network (hardware) configurations on which
the software is deployed and run.
29. Implementation View
► Describes the organization of static software
modules (source code, data files, executables,
documentation etc.) in the development
environment in terms of Packaging and
layering
► Are modeled using UML Component Diagrams.
► UML components are physical and replaceable
parts of a system that conform to and provide the
realization of a set of interfaces
30. Software Architecture Document
1. Introduction
2. Architectural Representation
3. Architectural Goals and Constraints
4. Use-Case View
5. Logical View
6. Process View
7. Deployment View
8. Implementation View
9. Data View (optional)
10. Size and Performance
11. Quality
31. Size and Performance
► The number of key elements the system will have to handle
(the number of concurrent online users for an airline
reservation system, …)
► The key performance measures of the system, such as
average response time for key events
Most of these qualities are captured as requirements; they
are presented here because they shape the architecture in
significant ways and warrant special focus. For each
requirement, discuss how the architecture supports this
requirement.
32. Quality
►Operating performance requirements, such
as mean-time between failure (MTBF).
►Quality targets, such as "no unscheduled
down-time"
►Extensibility targets, such as "the software
will be upgradeable while the system is
running".
►Portability targets, such as hardware
platforms, operating systems, languages