Design Patterns Past and Future
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Chatbot on Serverless/Lamba Architecture Nandan.A Prof.Shilpa Choudary Student, Reva University Professor, Reva University
SECOND NATIONAL CONFERENCE ON ADVANCES IN COMPUTING AND INFORMATION TECHNOLOGY ISSN:2347-7385 Chatbot on Serverless/Lamba Architecture Nandan.A Prof.Shilpa Choudary Student, Reva University Professor, Reva University Abstract—The OpenLambda, a new, opensource The logic tier contains the code required to translate platform for building next-generation web services user actions at the presentation tier to the and applications on serverless computation. The functionality key aspects of serverless computation and that drives the application’s behavior. The data tier present numerous research challenges that consists of storage media (databases, object stores, must be, addressed in the design and caches, file systems, etc.) that hold the data relevant implementation of such systems. The study of to the application. Figure 1 shows an example of a current web applications, so as to better motivate simple three-tier application. some aspects of serverless application construction. Chatbots platform are used by consumers worldwide for integrating it with backend services . It is still difficult to build and deploy chatbots developers need to handle the coordination of the backend services to build the chatbot interface, integrate the chatbot with external services, and worry about extensibility, scalability, and maintenance. The serverless architecture could be ideal platform to build the chatbot. Figure 1: Architectural pattern for a simple three- tier application Keywords: Lambda Architecture, Chat-bot, Multitier Architecture, Microservices. In Serverless Multi-Tier Architectures a backend remains private and secure. The benefits of this powerful pattern across each tier of a multi-tiered I. INTRODUCTION architecture. Example of a multitiered architecture is The multi-tier application has been a well- a three-tier web application. -
Patterns Senior Member of Technical Staff and Pattern Languages Knowledge Systems Corp
Kyle Brown An Introduction to Patterns Senior Member of Technical Staff and Pattern Languages Knowledge Systems Corp. 4001 Weston Parkway CSC591O Cary, North Carolina 27513-2303 April 7-9, 1997 919-481-4000 Raleigh, NC [email protected] http://www.ksccary.com Copyright (C) 1996, Kyle Brown, Bobby Woolf, and 1 2 Knowledge Systems Corp. All rights reserved. Overview Bobby Woolf Senior Member of Technical Staff O Patterns Knowledge Systems Corp. O Software Patterns 4001 Weston Parkway O Design Patterns Cary, North Carolina 27513-2303 O Architectural Patterns 919-481-4000 O Pattern Catalogs [email protected] O Pattern Languages http://www.ksccary.com 3 4 Patterns -- Why? Patterns -- Why? !@#$ O Learning software development is hard » Lots of new concepts O Must be some way to » Hard to distinguish good communicate better ideas from bad ones » Allow us to concentrate O Languages and on the problem frameworks are very O Patterns can provide the complex answer » Too much to explain » Much of their structure is incidental to our problem 5 6 Patterns -- What? Patterns -- Parts O Patterns are made up of four main parts O What is a pattern? » Title -- the name of the pattern » A solution to a problem in a context » Problem -- a statement of what the pattern solves » A structured way of representing design » Context -- a discussion of the constraints and information in prose and diagrams forces on the problem »A way of communicating design information from an expert to a novice » Solution -- a description of how to solve the problem » Generative: -
Download Vol 11, No 1&2, Year 2018
The International Journal on Advances in Internet Technology is published by IARIA. ISSN: 1942-2652 journals site: http://www.iariajournals.org contact: [email protected] Responsibility for the contents rests upon the authors and not upon IARIA, nor on IARIA volunteers, staff, or contractors. IARIA is the owner of the publication and of editorial aspects. IARIA reserves the right to update the content for quality improvements. Abstracting is permitted with credit to the source. Libraries are permitted to photocopy or print, providing the reference is mentioned and that the resulting material is made available at no cost. Reference should mention: International Journal on Advances in Internet Technology, issn 1942-2652 vol. 11, no. 1 & 2, year 2018, http://www.iariajournals.org/internet_technology/ The copyright for each included paper belongs to the authors. Republishing of same material, by authors or persons or organizations, is not allowed. Reprint rights can be granted by IARIA or by the authors, and must include proper reference. Reference to an article in the journal is as follows: <Author list>, “<Article title>” International Journal on Advances in Internet Technology, issn 1942-2652 vol. 11, no. 1 & 2, year 2018, <start page>:<end page> , http://www.iariajournals.org/internet_technology/ IARIA journals are made available for free, proving the appropriate references are made when their content is used. Sponsored by IARIA www.iaria.org Copyright © 2018 IARIA International Journal on Advances in Internet Technology Volume 11, Number 1 & 2, 2018 Editors-in-Chief Mariusz Głąbowski, Poznan University of Technology, Poland Editorial Advisory Board Eugen Borcoci, University "Politehnica"of Bucharest, Romania Lasse Berntzen, University College of Southeast, Norway Michael D. -
Iot Design Patterns: Computational Constructs to Design, Build and Engineer Edge Applications
2016 IEEE First International Conference on Internet-of-Things Design and Implementation IoT Design Patterns: Computational Constructs to Design, Build and Engineer Edge Applications Soheil Qanbari∗, Samim Pezeshki†, Rozita Raisi †, Samira Mahdizadeh∗, Rabee Rahimzadeh†, Negar Behinaein†, Fada Mahmoudi†, Shiva Ayoubzadeh †, Parham Fazlali†, Keyvan Roshani†, Azalia Yaghini†, Mozhdeh Amiri†, Ashkan Farivarmoheb†, Arash Zamani†, and Schahram Dustdar∗ ∗Distributed Systems Group, Vienna University of Technology, Vienna, Austria {qanbari, dustdar}@dsg.tuwien.ac.at †Baha’i Institute for Higher Education (BIHE) {firstname.lastname}@bihe.org Abstract—The objective of design patterns is to make design wiring approach of Hanmer [7]. This articulates the benefits robust and to abstract reusable solutions behind expressive of applying patterns by showing how each piece can fit into interfaces, independent of a concrete platform. They are ab- one integrated solution. stracted away from the complexity of underlying and enabling technologies. The connected things in IoT tend to be diverse With this motivation in mind, the paper continues in Sec- in terms of supported protocols, communication methods and tion II, with a brief review of how IoT design patterns are capabilities, computational power and storage. This motivates documented. Next, we introduce the diversity of our proposed us to look for more cost-effective and less resource-intensive patterns and how they are related to the edge applications IoT microservice models. We have identified a wide range of life-cycle in Section III. With some definitive clues on the design disciplines involved in creating IoT systems, that act as a seamless interface for collaborating heterogeneous things, and pattern language convention, we propose an edge provisioning suitable to be implemented on resource-constrained devices. -
Structured Patterns Metamodel Standardtm Publication
An OMG® Structured Patterns Metamodel StandardTM Publication OBJECT MANAGEMENT GROUP Structured Patterns Metamodel StandardTM V1.1 _______________________________________________ OMG Document Number: formal/2017-04-05 Release Date: July 2017 Standard document URL: http://www.omg.org/spec/SPMS/1.1 Normative Machine Consumable File(s): http://www.omg.org/spec/ SPMS /201 60301 /SPMS.xmi http://www.omg.org/spec/ SPMS/20160301/PHORML.xml http://www.omg.org/spec/ SPMS /201 60301 /APML.xmi _________________________________________________ Copyright © 2017, Object Management Group, Inc. Copyright © 2014, The Software Revolution, Inc. Copyright © 2014, CAST Copyright © 2014, KDM Analytics Copyright © 2014, Benchmark Consulting Copyright © 2014, eCube Systems Copyright © 2014, MITRE Copyright © 2014, University of North Carolina at Chapel Hill Copyright © 2014, École Polytechnique de Montréal USE OF SPECIFICATION – TERMS, CONDITIONS & NOTICES The material in this document details an Object Management Group specification in accordance with the terms, conditions and notices set forth below. This document does not represent a commitment to implement any portion of this specification in any company's products. The information contained in this document is subject to change without notice. LICENSES The companies listed above have granted to the Object Management Group, Inc. (OMG) a nonexclusive, royalty-free, paid up, worldwide license to copy and distribute this document and to modify this document and distribute copies of the modified version. Each of the copyright holders listed above has agreed that no person shall be deemed to have infringed the copyright in the included material of any such copyright holder by reason of having used the specification set forth herein or having conformed any computer software to the specification. -
Wiki As Pattern Language
Wiki as Pattern Language Ward Cunningham Cunningham and Cunningham, Inc.1 Sustasis Foundation Portland, Oregon Michael W. Mehaffy Faculty of Architecture Delft University of Technology2 Sustasis Foundation Portland, Oregon Abstract We describe the origin of wiki technology, which has become widely influential, and its relationship to the development of pattern languages in software. We show here how the relationship is deeper than previously understood, opening up the possibility of expanded capability for wikis, including a new generation of “federated” wiki. [NOTE TO REVIEWERS: This paper is part first-person history and part theory. The history is given by one of the participants, an original developer of wiki and co-developer of pattern language. The theory points toward future potential of pattern language within a federated, peer-to-peer framework.] 1. Introduction Wiki is today widely established as a kind of website that allows users to quickly and easily share, modify and improve information collaboratively (Leuf and Cunningham, 2001). It is described on Wikipedia – perhaps its best known example – as “a website which allows its users to add, modify, or delete its content via a web browser usually using a simplified markup language or a rich-text editor” (Wikipedia, 2013). Wiki is so well established, in fact, that a Google search engine result for the term displays approximately 1.25 billion page “hits”, or pages on the World Wide Web that include this term somewhere within their text (Google, 2013a). Along with this growth, the definition of what constitutes a “wiki” has broadened since its introduction in 1995. Consider the example of WikiLeaks, where editable content would defeat the purpose of the site. -
Design Pattern Interview Questions
DDEESSIIGGNN PPAATTTTEERRNN -- IINNTTEERRVVIIEEWW QQUUEESSTTIIOONNSS http://www.tutorialspoint.com/design_pattern/design_pattern_interview_questions.htm Copyright © tutorialspoint.com Dear readers, these Design Pattern Interview Questions have been designed specially to get you acquainted with the nature of questions you may encounter during your interview for the subject of Design Pattern. As per my experience good interviewers hardly plan to ask any particular question during your interview, normally questions start with some basic concept of the subject and later they continue based on further discussion and what you answer: What are Design Patterns? Design patterns represent the best practices used by experienced object-oriented software developers. Design patterns are solutions to general problems that software developers faced during software development. These solutions were obtained by trial and error by numerous software developers over quite a substantial period of time. What is Gang of Four GOF? In 1994, four authors Erich Gamma, Richard Helm, Ralph Johnson and John Vlissides published a book titled Design Patterns - Elements of Reusable Object-Oriented Software which initiated the concept of Design Pattern in Software development. These authors are collectively known as Gang of Four GOF. Name types of Design Patterns? Design patterns can be classified in three categories: Creational, Structural and Behavioral patterns. Creational Patterns - These design patterns provide a way to create objects while hiding the creation logic, rather than instantiating objects directly using new opreator. This gives program more flexibility in deciding which objects need to be created for a given use case. Structural Patterns - These design patterns concern class and object composition. Concept of inheritance is used to compose interfaces and define ways to compose objects to obtain new functionalities. -
Zend Framework 3 Cookbook
Table of Contents Introduction 1.1 About the authors 1.2 Configuration zend-config for all your configuration needs 2.1 Manage your application with zend-config-aggregator 2.2 Data Manipulation Convert objects to arrays and back with zend-hydrator 3.1 Scrape Screens with zend-dom 3.2 Paginating data collections with zend-paginator 3.3 Log and Feeds Logging PHP applications 4.1 Discover and Read RSS and Atom Feeds 4.2 Create RSS and Atom Feeds 4.3 Authentication and Authorization Manage permissions with zend-permissions-rbac 5.1 Manage permissions with zend-permissions-acl 5.2 Web Services Implement JSON-RPC with zend-json-server 6.1 Implement an XML-RPC server with zend-xmlrpc 6.2 Implement a SOAP server with zend-soap 6.3 2 Security Context-specific escaping with zend-escaper 7.1 Filter input using zend-filter 7.2 Validate input using zend-validator 7.3 Validate data using zend-inputfilter 7.4 End-to-end encryption with Zend Framework 3 7.5 Deployment and Virtualization Create ZPKs the Easy Way 8.1 Using Laravel Homestead with Zend Framework Projects 8.2 Copyright Copyright note 9.1 3 Introduction Zend Framework 3 Cookbook During the year 2017, Matthew Weier O'Phinney and Enrico Zimuel started a series of blog posts on the offical Zend Framework blog covering its components. Zend Framework is composed by 60+ components covering a wide range of functionality. While the framework has typically been marketed as a full-stack MVC framework, the individual components themselves typically work independently and can be used standalone or within other frameworks. -
APPLYING MODEL-VIEW-CONTROLLER (MVC) in DESIGN and DEVELOPMENT of INFORMATION SYSTEMS an Example of Smart Assistive Script Breakdown in an E-Business Application
APPLYING MODEL-VIEW-CONTROLLER (MVC) IN DESIGN AND DEVELOPMENT OF INFORMATION SYSTEMS An Example of Smart Assistive Script Breakdown in an e-Business Application Andreas Holzinger, Karl Heinz Struggl Institute of Information Systems and Computer Media (IICM), TU Graz, Graz, Austria Matjaž Debevc Faculty of Electrical Engineering and Computer Science, University of Maribor, Maribor, Slovenia Keywords: Information Systems, Software Design Patterns, Model-view-controller (MVC), Script Breakdown, Film Production. Abstract: Information systems are supporting professionals in all areas of e-Business. In this paper we concentrate on our experiences in the design and development of information systems for the use in film production processes. Professionals working in this area are neither computer experts, nor interested in spending much time for information systems. Consequently, to provide a useful, useable and enjoyable application the system must be extremely suited to the requirements and demands of those professionals. One of the most important tasks at the beginning of a film production is to break down the movie script into its elements and aspects, and create a solid estimate of production costs based on the resulting breakdown data. Several film production software applications provide interfaces to support this task. However, most attempts suffer from numerous usability deficiencies. As a result, many film producers still use script printouts and textmarkers to highlight script elements, and transfer the data manually into their film management software. This paper presents a novel approach for unobtrusive and efficient script breakdown using a new way of breaking down text into its relevant elements. We demonstrate how the implementation of this interface benefits from employing the Model-View-Controller (MVC) as underlying software design paradigm in terms of both software development confidence and user satisfaction. -
Web-Based Content Management System
Maciej Dobecki, Wojciech Zabierowski / Computing, 2010, Vol. 9, Issue 2, 127-130 [email protected] ISSN 1727-6209 www.computingonline.net International Journal of Computing WEB-BASED CONTENT MANAGEMENT SYSTEM Maciej Dobecki, Wojciech Zabierowski Technical University of Lodz, al. Politechniki 11, 90-924 Łódź, Poland, e-mail: [email protected], [email protected] http://www.dmcs.p.lodz.pl Abstract: This paper describes how to design content management system using the newest web-based techniques. It contains helpful information that can be used during selecting programming language. It introduces multi layer architecture with description and functionality of each layer. It provides description of Model View Controller pattern and how to use it in multi-layer application design. It shows the most powerful Java frameworks that can be applied for each layer and how to connect them in simple way, using Inversion of Control container. It shows power of Spring Framework as business layer, Hibernate as integration layer and ZK Ajax as presentation layer. It proves, that Java combined with applicable libraries can be very powerful tool in good hands. Keywords: CMS, JEE, Spring, Hibernate, AJAX. 1. INTRODUCTION CMS is prepared through a simple-to-use user interface. Usually it is a set of web pages containing The Internet – today is the most powerful and complex forms and modules. popular information media. What was impossible The primary task of the CMS platform is even few years ago is now available by “clicking separation of data content from presentation (the the mouse”. Both small firms and global giants do way of its look). -
MV* Design Patterns
MV* Design Patterns Alexander Nelson August 30, 2021 University of Arkansas - Department of Computer Science and Computer Engineering Reminders Course Mechanics Course Webpage: https://ahnelson.uark.edu/courses/ csce-4623-mobile-programming-fall-2021/ Syllabus is on the website. Course Communication: https://csce4623-uark.slack.com/ This slack channel is to be the primary mode of communication Projects Choose a project idea and team for the final project ASAP First project report is due September 10th Multitier Architectures What is a multitier architecture? Physical separation of data concerns Examples: • Presentation (UI) • Application Processing • Data Management Why split into layers? OSI Model Why split into layers? Separation of concerns! A change to one layer can have no bearing on the rest of the model e.g. Fiberoptic instead of Coax at the PHY layer OSI Model How does this apply to mobile? Application designers often want separation of UI and logic! Three tier architecture These software engineering abstractions relate to the MV* architectures that are common in mobile computing systems Model View Controller (MVC) Model View Controller 1 1Krasner 1988 Definitions Model: Models are those components of the system application that actually do the work View: Display aspects of the models Controller: Used to send messages to the model, provide interface between model, views, and UI devices. Models Models enable encapsulation Model encapsulates all data as well as methods to change them • Can change the underlying data structures without -
Analysis Patterns.Pdf
Symbols for mappings DLKING , : www.dlking.com Generalization notation DLKING , : www.dlking.com Contents Foreword v Foreword vii Preface xv Chapter 1. Introduction 1 1.1 Conceptual Models 1 1.2 The World of Patterns 4 1.3 The Patterns in this Book 8 1.4 Conceptual Models and Business Process Reengineering 10 1.5 Patterns and Frameworks 11 1.6 Using the Patterns 11 References 14 Part 1. Analysis Patterns 15 Chapter 2. Accountability 17 2.1 Party 18 2.2 Organization Hierarchies 19 2.3 Organization Structure 21 2.4 Accountability 22 2.5 Accountability Knowledge Level 24 2.6 Party Type Generalizations 27 2.7 Hierarchic Accountability 28 2.8 Operating Scopes 30 2.9 Post 32 References 33 Chapter 3. Observations and Measurements 35 3.1 Quantity 36 3.2 Conversion Ratio 38 3.3 Compound Units 39 3.4 Measurement 41 3.5 Observation 42 3.6 Subtyping Observation Concepts 46 3.7 Protocol 46 3.8 Dual Time Record 47 IX DLKING , : www.dlking.com x Contents 3.9 Rejected Observation 48 3.10 Active Observation, Hypothesis, and Projection 49 3.11 Associated Observation 50 3.12 Process of Observation 51 References 55 Chapter 4. Observations for Corporate Finance 57 4.1 Enterprise Segment 59 4.2 Measurement Protocol 65 4.3 Range 76 4.4 Phenomenon with Range 77 4.5 Using the Resulting Framework 82 References 83 Chapter 5. Referring to Objects 85 5.1 Name 86 5.2 Identification Scheme 88 5.3 Object Merge 90 5.4 Object Equivalence 92 References 93 Chapter 6.