Gone are the days where making an app just involved writing code. Now, even as a developer, we need to be aware of many other aspects of shipping. They can be human things, like "how do I stop someone from overwriting my changes to the project.pbxproj, storyboard, or xib?" Or technical challenges, like "how do I manage dependencies?” and “why do I always have to do a 3-way merge?” Or even peripheral things like “what happens to our servers if we get featured?” and “what happens to the app when the servers go down?” This session will cover common scaling problems, and solutions to overcome them.
This presentation is consists of an introduction to MVP pattern on Android platform. We will see how can we use MVP pattern to write unit testable code while developing an Android app. We also used a demo android app to perform TDD which you can find over here.
https://github.com/jainsahab/TDD_Geeknight_MVP
Gone are the days where making an app just involved writing code. Now, even as a developer, we need to be aware of many other aspects of shipping. They can be human things, like "how do I stop someone from overwriting my changes to the project.pbxproj, storyboard, or xib?" Or technical challenges, like "how do I manage dependencies?” and “why do I always have to do a 3-way merge?” Or even peripheral things like “what happens to our servers if we get featured?” and “what happens to the app when the servers go down?” This session will cover common scaling problems, and solutions to overcome them.
This presentation is consists of an introduction to MVP pattern on Android platform. We will see how can we use MVP pattern to write unit testable code while developing an Android app. We also used a demo android app to perform TDD which you can find over here.
https://github.com/jainsahab/TDD_Geeknight_MVP
Design Pattern Mastery - Momentum Dev Con 19 Apr 2018Steven Smith
Design patterns help developers and teams solve problems using proven approaches. In this talk, you'll learn how to solve a series of real world problems by applying patterns. Not only do patterns help individual developers solve particular problems, but they also enable teams to discuss design decisions using a richer, more descriptive language. By the end, you'll have some concrete tools you can apply, and hopefully the desire to master more patterns as you continue to improve!
Design and Implementation patterns have changed in object-oriented languages such as C# with the introduction of new language features, advances in object-oriented design, and the inclusion of functional language aspects. This session will explore the impact this has on design and implementation patterns and how they can be leveraged to build more elegant systems.
Patterns (contd)Software Development ProcessDesign patte.docxdanhaley45372
Patterns (contd)
Software Development Process
Design patterns used to handle change
More time extending and changing code than developing it.
The Strategy design pattern handle change by selecting from a family of external algorithms rather than rewrite.
Design point: Make code closed for modification of code, but open for extension
Problem
Computer object created
Description Method returns
Getting a Computer
Problem
Program has to change every time
Customer changes options
Decorator Pattern
Wrapper code used to extend your core code
Extend a class dynamically at runtime
Decorator uses wrapper code to extend core functionality - decorating the code
Decorator Pattern
description() returns “You are getting a computer”
Wrapper description() returns
“You are getting a computer and a disk”
Wrapper description() returns
“You are getting a computer and a disk and a monitor”
Decorator Pattern
Core component: Computer
Variables holding computer objects should also be able to hold objects that wrap computer objects.
Extend the wrapper classes from the Computer class.
Abstract class cannot be instantiated
Ensures all wrappers are consistent
Developers have to provide their own description
Decorator Pattern
Method calls the core computer object’s
description method and adds “and a disk”
Decorator Pattern
Method calls the core computer object’s
description method and adds “and a disk”
Extend the core object by wrapping it in decorator wrappers. Avoids modification of the core code.
Each successive wrapper called the description method of the object it wrapped and added something to it.
Factory Pattern
Based on type, call the
Connection method
Factory Pattern
Create a method that returns the
correct connection type
Factory Pattern
New operator used to create OracleConnection objects.
New operator used to create SqlServerConnection objects, and MySqlConnection objects.
New operator to instantiate many different concrete classes
Code becomes larger and needs to be replicated in many places
Factor that code out into a method.
Code keeps changing
Encapsulate code into a factory object
Goal: Separate out the changeable code and leave the core code closed for modification
Building the Factory
Creating the Factory
FirstFactory class encapsulates the connection object creation
Pass to it the type of connection (“Oracle”, “SQL Server”,)
Use the factory object to create connection objects with a factory method named createConnection
Building the Factory
Create the FirstFactory class.
Save the type of the database, passed to the FirstFactory class’s constructor.
Object-creation code changes
Check which type of object to be created
(OracleConnection, SqlServerConnection,
and then create it.
Factory Class
Create the Abstract Connection Class
Core code should not be modified or has to be modified
as little as possible.
Using the connection object returned by the
new factory object
Use t.
JAVA design patterns and Basic OOp conceptsRahul Malhotra
This Presentation is about java design patterns. I have covered some OOPs concepts as well: Polymorphism, Interface, Inheritance, abstraction etc. And the Main Topic Covers: Factory Design Patterns,Observer Design Patterns,Proxy Design Patterns,Adapter Design Patterns,MVC Design Patterns etc
Design Pattern Mastery - Momentum Dev Con 19 Apr 2018Steven Smith
Design patterns help developers and teams solve problems using proven approaches. In this talk, you'll learn how to solve a series of real world problems by applying patterns. Not only do patterns help individual developers solve particular problems, but they also enable teams to discuss design decisions using a richer, more descriptive language. By the end, you'll have some concrete tools you can apply, and hopefully the desire to master more patterns as you continue to improve!
Design and Implementation patterns have changed in object-oriented languages such as C# with the introduction of new language features, advances in object-oriented design, and the inclusion of functional language aspects. This session will explore the impact this has on design and implementation patterns and how they can be leveraged to build more elegant systems.
Patterns (contd)Software Development ProcessDesign patte.docxdanhaley45372
Patterns (contd)
Software Development Process
Design patterns used to handle change
More time extending and changing code than developing it.
The Strategy design pattern handle change by selecting from a family of external algorithms rather than rewrite.
Design point: Make code closed for modification of code, but open for extension
Problem
Computer object created
Description Method returns
Getting a Computer
Problem
Program has to change every time
Customer changes options
Decorator Pattern
Wrapper code used to extend your core code
Extend a class dynamically at runtime
Decorator uses wrapper code to extend core functionality - decorating the code
Decorator Pattern
description() returns “You are getting a computer”
Wrapper description() returns
“You are getting a computer and a disk”
Wrapper description() returns
“You are getting a computer and a disk and a monitor”
Decorator Pattern
Core component: Computer
Variables holding computer objects should also be able to hold objects that wrap computer objects.
Extend the wrapper classes from the Computer class.
Abstract class cannot be instantiated
Ensures all wrappers are consistent
Developers have to provide their own description
Decorator Pattern
Method calls the core computer object’s
description method and adds “and a disk”
Decorator Pattern
Method calls the core computer object’s
description method and adds “and a disk”
Extend the core object by wrapping it in decorator wrappers. Avoids modification of the core code.
Each successive wrapper called the description method of the object it wrapped and added something to it.
Factory Pattern
Based on type, call the
Connection method
Factory Pattern
Create a method that returns the
correct connection type
Factory Pattern
New operator used to create OracleConnection objects.
New operator used to create SqlServerConnection objects, and MySqlConnection objects.
New operator to instantiate many different concrete classes
Code becomes larger and needs to be replicated in many places
Factor that code out into a method.
Code keeps changing
Encapsulate code into a factory object
Goal: Separate out the changeable code and leave the core code closed for modification
Building the Factory
Creating the Factory
FirstFactory class encapsulates the connection object creation
Pass to it the type of connection (“Oracle”, “SQL Server”,)
Use the factory object to create connection objects with a factory method named createConnection
Building the Factory
Create the FirstFactory class.
Save the type of the database, passed to the FirstFactory class’s constructor.
Object-creation code changes
Check which type of object to be created
(OracleConnection, SqlServerConnection,
and then create it.
Factory Class
Create the Abstract Connection Class
Core code should not be modified or has to be modified
as little as possible.
Using the connection object returned by the
new factory object
Use t.
JAVA design patterns and Basic OOp conceptsRahul Malhotra
This Presentation is about java design patterns. I have covered some OOPs concepts as well: Polymorphism, Interface, Inheritance, abstraction etc. And the Main Topic Covers: Factory Design Patterns,Observer Design Patterns,Proxy Design Patterns,Adapter Design Patterns,MVC Design Patterns etc
review of factors affecting IoT system selection. for MVP phase and later phases. Computation, price, connectivity, open source support, development SDKs
Autonomous car teleportation architectureYoss Cohen
Suggestion for a generic architecture of teleoperation system (remote control by video) for autonomous cars or drones. such a system requires transport of several video streams in extremely low latency
Slides from "hands on video" course
explains the color model as well as YUV decimation and packing in theory and practice using FFMPEG, FFPROBE and YUV player
Review of video over IP testing tools including: video syntax analyzer, pixel based measurement indexes like PSNR and SSIM and the tools to measure them, IP based video quality testing.
Excerpts from the HEVC / H265 Hands-on course.
This parts of the course explains how to download the reference code (HM) compile it configure it and analyze the video output
Removing Uninteresting Bytes in Software FuzzingAftab Hussain
Imagine a world where software fuzzing, the process of mutating bytes in test seeds to uncover hidden and erroneous program behaviors, becomes faster and more effective. A lot depends on the initial seeds, which can significantly dictate the trajectory of a fuzzing campaign, particularly in terms of how long it takes to uncover interesting behaviour in your code. We introduce DIAR, a technique designed to speedup fuzzing campaigns by pinpointing and eliminating those uninteresting bytes in the seeds. Picture this: instead of wasting valuable resources on meaningless mutations in large, bloated seeds, DIAR removes the unnecessary bytes, streamlining the entire process.
In this work, we equipped AFL, a popular fuzzer, with DIAR and examined two critical Linux libraries -- Libxml's xmllint, a tool for parsing xml documents, and Binutil's readelf, an essential debugging and security analysis command-line tool used to display detailed information about ELF (Executable and Linkable Format). Our preliminary results show that AFL+DIAR does not only discover new paths more quickly but also achieves higher coverage overall. This work thus showcases how starting with lean and optimized seeds can lead to faster, more comprehensive fuzzing campaigns -- and DIAR helps you find such seeds.
- These are slides of the talk given at IEEE International Conference on Software Testing Verification and Validation Workshop, ICSTW 2022.
Sudheer Mechineni, Head of Application Frameworks, Standard Chartered Bank
Discover how Standard Chartered Bank harnessed the power of Neo4j to transform complex data access challenges into a dynamic, scalable graph database solution. This keynote will cover their journey from initial adoption to deploying a fully automated, enterprise-grade causal cluster, highlighting key strategies for modelling organisational changes and ensuring robust disaster recovery. Learn how these innovations have not only enhanced Standard Chartered Bank’s data infrastructure but also positioned them as pioneers in the banking sector’s adoption of graph technology.
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
GraphSummit Singapore | The Future of Agility: Supercharging Digital Transfor...Neo4j
Leonard Jayamohan, Partner & Generative AI Lead, Deloitte
This keynote will reveal how Deloitte leverages Neo4j’s graph power for groundbreaking digital twin solutions, achieving a staggering 100x performance boost. Discover the essential role knowledge graphs play in successful generative AI implementations. Plus, get an exclusive look at an innovative Neo4j + Generative AI solution Deloitte is developing in-house.
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
PHP Frameworks: I want to break free (IPC Berlin 2024)Ralf Eggert
In this presentation, we examine the challenges and limitations of relying too heavily on PHP frameworks in web development. We discuss the history of PHP and its frameworks to understand how this dependence has evolved. The focus will be on providing concrete tips and strategies to reduce reliance on these frameworks, based on real-world examples and practical considerations. The goal is to equip developers with the skills and knowledge to create more flexible and future-proof web applications. We'll explore the importance of maintaining autonomy in a rapidly changing tech landscape and how to make informed decisions in PHP development.
This talk is aimed at encouraging a more independent approach to using PHP frameworks, moving towards a more flexible and future-proof approach to PHP development.
A tale of scale & speed: How the US Navy is enabling software delivery from l...sonjaschweigert1
Rapid and secure feature delivery is a goal across every application team and every branch of the DoD. The Navy’s DevSecOps platform, Party Barge, has achieved:
- Reduction in onboarding time from 5 weeks to 1 day
- Improved developer experience and productivity through actionable findings and reduction of false positives
- Maintenance of superior security standards and inherent policy enforcement with Authorization to Operate (ATO)
Development teams can ship efficiently and ensure applications are cyber ready for Navy Authorizing Officials (AOs). In this webinar, Sigma Defense and Anchore will give attendees a look behind the scenes and demo secure pipeline automation and security artifacts that speed up application ATO and time to production.
We will cover:
- How to remove silos in DevSecOps
- How to build efficient development pipeline roles and component templates
- How to deliver security artifacts that matter for ATO’s (SBOMs, vulnerability reports, and policy evidence)
- How to streamline operations with automated policy checks on container images
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
SAP Sapphire 2024 - ASUG301 building better apps with SAP Fiori.pdfPeter Spielvogel
Building better applications for business users with SAP Fiori.
• What is SAP Fiori and why it matters to you
• How a better user experience drives measurable business benefits
• How to get started with SAP Fiori today
• How SAP Fiori elements accelerates application development
• How SAP Build Code includes SAP Fiori tools and other generative artificial intelligence capabilities
• How SAP Fiori paves the way for using AI in SAP apps
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
14. Observer Pattern Lab In this lab, we’re going to leverage the Observer Pattern implementation built into the Flash Player. Event Dispatcher Observer Observer Observer
Improve the development workflow since they help to capture ideas with metaphors that are easy to understand and talk about. The code is separated into manageable pieces which teams can work on separately and can clearly communicate about. The code is well defined so that when change happens, you can adjust your patterns or introduce new patterns to deal with the change.
Architectural Patterns are larger in scale than design patterns. layers multi-tier runs on a distributed system MVC runs on a single system Pipeline SOA – service oriented architecture: communication by passing data from one service to another Algorithm solve computational problems
Many objects we only need one of: caches, DragManager, PopUpManager,
If you search the web for MVC frameworks, you’ll find hundreds of options. Each has their own strengths and weaknesses.